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216 lines
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<title>31 October, 2021</title>
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<title>Covid-19 Sentry</title><meta content="width=device-width, initial-scale=1.0" name="viewport"/><link href="styles/simple.css" rel="stylesheet"/><link href="../styles/simple.css" rel="stylesheet"/><link href="https://unpkg.com/aos@2.3.1/dist/aos.css" rel="stylesheet"/><script src="https://unpkg.com/aos@2.3.1/dist/aos.js"></script></head>
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<h1 data-aos="fade-down" id="covid-19-sentry">Covid-19 Sentry</h1>
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<h1 data-aos="fade-right" data-aos-anchor-placement="top-bottom" id="contents">Contents</h1>
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<ul>
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<li><a href="#from-preprints">From Preprints</a></li>
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<li><a href="#from-clinical-trials">From Clinical Trials</a></li>
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<li><a href="#from-pubmed">From PubMed</a></li>
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<li><a href="#from-patent-search">From Patent Search</a></li>
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<h1 data-aos="fade-right" id="from-preprints">From Preprints</h1>
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<li><strong>Psychological distance towards COVID-19: Geographical and hypothetical distance predict attitudes and mediate knowledge</strong> -
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<div>
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While different antecedents have been examined to explain peoples’ reactions towards COVID-19, there is only scarce understanding about the role of the subjective closeness and distance to the pandemic. Within the current study, we applied the concept of psychological distance to understand the distance towards COVID-19 and investigated its (1) connection with preventive attitudes and proactive behaviors, (2) context-specific antecedents, and its (3) mediating effect of knowledge on attitudes. Using an online sample from a German quantitative cross-sectional study (N = 395, M = 32.2 years, SD = 13.9 years, 64.3% female) in July 2020, a time with a general low incidence of people infected with Sars-CoV2, we measured relevant socio-psychological constructs addressing COVID-19 and included further information from external sources. Based on a path model, we found geographical distance as a significant predictor of cognitive attitudes towards COVID-19. Furthermore, hypothetical distance (i.e., feeling to be likely affected by COVID-19) predicted not only participants’ affective, cognitive, and behavioral attitudes, but also the installation of a corona warning-app. While several variables affected the different dimensions of psychological distance, hypothetical and geographical distance mediated the effect of knowledge on attitudes. These results underline the role of geographical and hypothetical distance for health-related behaviors and education. For example, people will only comply with preventive measures if they feel geographically concerned by the disease, which is particularly challenging for fast-spreading global diseases such as COVID-19. Therefore, there is a need to clearly communicate the personal risks of diseases and address peoples’ hypothetical distance.
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<div class="article-link article-html-link">
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🖺 Full Text HTML: <a href="https://psyarxiv.com/3n5pt/" target="_blank">Psychological distance towards COVID-19: Geographical and hypothetical distance predict attitudes and mediate knowledge</a>
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</div></li>
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<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Vaccine-induced humoral and cellular immunity against SARS-CoV-2 at 6 months post BNT162b2 vaccination</strong> -
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To evaluate vaccine-induced humoral and cell-mediated immunity at 6 months post BNT162b2 vaccination, immunoglobulin G against SARS-CoV-2 spike protein (SP IgG), 50% neutralizing antibody (NT50), and spot-forming cell (SFC) counts were evaluated by interferon-γ releasing ELISpot assay of 98 healthy subjects (median age, 43 years). The geometric mean titers of SP IgG and NT50 decreased from 95.2 (95% confidence interval (CI) 79.8-113.4) to 5.7 (95% CI 4.9-6.7) and from 680.4 (588.0-787.2) to 130.4 (95% CI 104.2-163.1), respectively, at 3 weeks and 6 months after the vaccination. SP IgG titer was negatively correlated with age and alcohol consumption. Spot-forming cell counts at 6 months did not correlate with age, gender, and other parameters of the patients. SP IgG, NT50, and SFC titers were elevated in the breakthrough infected subjects. Although the levels of vaccine-induced antibodies dramatically declined at 6 months after vaccination, a certain degree of cellular immunity was observed irrespective of the age.
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</p>
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</div></li>
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</ul>
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<div class="article-link article-html-link">
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🖺 Full Text HTML: <a href="https://www.medrxiv.org/content/10.1101/2021.10.30.21265693v1" target="_blank">Vaccine-induced humoral and cellular immunity against SARS-CoV-2 at 6 months post BNT162b2 vaccination</a>
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</div>
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<ul>
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<li><strong>Vaccination and partisanship during Covid-19 in England</strong> -
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<div>
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An emerging literature documents the presence of large partisan differences in the views and behaviours of different voters towards the Covid-19 pandemic. How does this affect vaccination rates? We address this question in the case of England using a cross-sectional regression analysis of constituency level vaccination data in October 2021 matched with the latest General Election results in England. Our results show that partisanship is crucial to account for differences across English constituencies. We find a positive and robust association between the share of Conservative voters and vaccination rates in different constituencies. This effect holds when controlling for differences in house prices and wages, population composition, the health and deprivation of the constituency and past austerity, and when rerunning the analysis on vaccination rates for different age groups. Our results contrast with studies of beliefs about Covid-19 and compliance with national lockdowns in England, where Conservative voter appear more sceptic, but also with the US where Republican States and individuals tend to vaccinate less.
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</div>
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<div class="article-link article-html-link">
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🖺 Full Text HTML: <a href="https://osf.io/preprints/socarxiv/wf6ns/" target="_blank">Vaccination and partisanship during Covid-19 in England</a>
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</div></li>
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<li><strong>Parents perceptions and intention to vaccinate their children against COVID-19: Results from a cross-sectional national survey in India</strong> -
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Background Despite the success of adult vaccination against COVID-19, providing vaccines to children remains a challenge for policymakers globally. As parents are primary decision-makers for their children, we aimed to assess parents perceptions and intentions regarding COVID-19 vaccination in India. Methods A cross-sectional web-based study was designed, parents or caregivers (N=770) were recruited through snowball sampling using Google form. Cross- tabulation was performed by parents intention to vaccinate their children against COVID-19 virus with sociodemographic characteristics and their risk perception towards COVID-19, trust in the healthcare system, and their history of vaccine hesitancy behavior. Multivariable logistic regression analysis was performed to compute the predictors of child vaccination intention among Indian parents. Results Seven hundred seventy parents across the country have completed the survey. Of the 770 participants, 258 (33.5%) have shown intent to vaccinate their children. The stated likelihood of child vaccination was greater among parents who had a bachelors degree or higher education (aOR: 1.98, 95% CI: 1.15-3.51); as well as among parents who intended to vaccinate themselves (aOR: 2.35, 95% CI: 1.30-4.67). Parental concerns centered around vaccine safety and side effects. Conclusion Indian parents reported high knowledge of the COVID-19 virus and were aware of the development of a novel vaccine. However, about one-third of parents intended to vaccinate their children, and about half of them were not sure whether to vaccinate their children or not against the COVID-19 virus. The study highlighted the need for health promotion strategies that promote vaccine uptake among parents.
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<div class="article-link article-html-link">
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🖺 Full Text HTML: <a href="https://www.medrxiv.org/content/10.1101/2021.10.30.21265449v1" target="_blank">Parents perceptions and intention to vaccinate their children against COVID-19: Results from a cross-sectional national survey in India</a>
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</div></li>
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<li><strong>Measuring College Student Attitudes Toward COVID-19 Vaccinations</strong> -
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This survey explores attitudes of 1,197 currently enrolled college students regarding their comfort taking a COVID-19 vaccine. Results suggest most college students are willing to take a COVID-19 vaccine if their institution requires it to return to campus in subsequent semesters. However, certain students of Color, students with disabilities, and adult students may be less willing to take a COVID-19 vaccine if it were required before or during an on-campus semester. Finally, many college students do not understand that COVID-19 vaccines will be free, possibly affecting student willingness to vaccinate and their perceptions of safely and affordably returning to campus. Implications for postsecondary policy and leadership are addressed.
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</p>
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<div class="article-link article-html-link">
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🖺 Full Text HTML: <a href="https://www.medrxiv.org/content/10.1101/2021.10.30.21265699v1" target="_blank">Measuring College Student Attitudes Toward COVID-19 Vaccinations</a>
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<li><strong>Assessment of the fatality rate and transmissibility taking account of undetected cases during an unprecedented COVID-19 surge in Taiwan</strong> -
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Background During the COVID-19 outbreak in Taiwan between May 11 and June 20, 2021, the observed fatality rate (FR) was 5.3%, higher than the global average at 2.1%. The high number of reported deaths suggests that hospital capacity was insufficient. However, many unexplained deaths were subsequently identified as cases, indicating that there were a few undetected cases, hence resulting in a higher estimate of FR. Knowing the number of total infected cases can allow an accurate estimation of the fatality rate (FR) and effective reproduction number (R<sub>t</sub>). Methods After adjusting for reporting delays, we estimated the number of undetected cases using reported deaths that were and were not previously detected. The daily FR and R<sub>t</sub> were calculated using the number of total cases (i.e. including undetected cases). A logistic regression model was developed to predict the detection ratio among deaths using selected predictors from daily testing and tracing data. Results The estimated true daily case number at the peak of the outbreak on May 22 was 897, which was 24.3% higher than the reported number, but the difference became less than 4% on June 9 and afterward. After taking account of undetected cases, our estimated mean FR (4.7%) was still high but the daily rate showed a large decrease from 6.5% on May 19 to 2.8% on June 6. R<sub>t</sub> reached a maximum value of 6.4 on May 11, compared to 6.0 estimated using the reported case number. The decreasing proportion of undetected cases was associated with the increases in the ratio of the number of tests conducted to reported cases, and the proportion of cases that are contact-traced before symptom onset. Conclusions Increasing testing capacity and tracing efficiency can lead to a reduction of hidden cases and hence improvement in epidemiological parameter estimation.
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🖺 Full Text HTML: <a href="https://www.medrxiv.org/content/10.1101/2021.10.29.21265691v1" target="_blank">Assessment of the fatality rate and transmissibility taking account of undetected cases during an unprecedented COVID-19 surge in Taiwan</a>
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</div></li>
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<li><strong>Label-Free SARS-CoV-2 Detection on Flexible Substrates</strong> -
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One of the most important strategies for mitigation and managing pandemics is widespread, rapid and inexpensive testing and isolation of infected patients. In this study, we demonstrate large area, label-free, and rapid testing sensor platforms fabricated on both rigid and flexible substrates for fast and accurate detection of SARS-CoV-2. SERS enhancing metal insulator metal (MIM) nanostructures are modeled using finite element simulations and then fabricated using nanoimprint lithography (NIL) and transfer printing. The SERS signal of various viral samples, including spiked saliva, was analyzed using machine learning classifiers. We observe that our approach can obtain the test results typically within 25 minutes with a detection accuracy of at least 83% for the viral samples. We envision that this approach which features large area nanopatterning, fabrication in both rigid and flexible formats for wearables, SERS spectroscopy and machine learning can enable new types of rapid, label-free biosensors for screening pathogens and managing current and future pandemics.
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🖺 Full Text HTML: <a href="https://www.medrxiv.org/content/10.1101/2021.10.29.21265683v1" target="_blank">Label-Free SARS-CoV-2 Detection on Flexible Substrates</a>
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<li><strong>Multi-ethnic Investigation of Risk and Immune Determinants of COVID-19 Outcomes</strong> -
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Objectives: To compare risk factors for COVID-19 mortality among hospitalized Hispanic, Non-Hispanic Black, and White patients. Design: Retrospecitve cohort study Setting: Five hosptials within a single academic health system Participants: 3,086 adult patients with self-reported race/ethnicity information presenting to the emergency department and hospitalized with COVID-19 up to April 13, 2020. Main outcome measures: In-hospital mortality Results: While older age (multivariable OR 1.06, 95% CI 1.05-1.07) and baseline hypoxia (multivariable OR 2.71, 95% CI 2.17-3.36) were associated with increased mortality overall and across all races/ethnicities, Non-Hispanic Black (median age 67, IQR 58-76) and Hispanic (median age 63, IQR 50-74) patients were younger and had different comorbidity profiles compared to Non-Hispanic White patients (median age 73, IQR 62-84; p<0.05 for both comparisons). Among inflammatory markers associated with COVID-19 mortality, there was a significant interaction between the Non-Hispanic Black population and interleukin-1-beta (interaction p-value 0.04). Conclusions: This analysis of a multi-ethnic cohort highlights the need for inclusion and consideration of diverse popualtions in ongoing COVID-19 trials targeting inflammatory cytokines.
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</p>
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🖺 Full Text HTML: <a href="https://www.medrxiv.org/content/10.1101/2021.10.29.21265687v1" target="_blank">Multi-ethnic Investigation of Risk and Immune Determinants of COVID-19 Outcomes</a>
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</div></li>
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<li><strong>Contributions of occupation characteristics and educational attainment to racial/ethnic inequities in COVID-19 mortality</strong> -
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Background: Racial/ethnic inequities in COVID-19 mortality are hypothesized to be driven by education and occupation, but limited empirical evidence has assessed these mechanisms. Objective: To quantify the extent to which educational attainment and occupation explain racial/ethnic inequities in COVID-19 mortality. Design: Observational cohort. Setting: California. Participants: Californians aged 18-65 years. Measurements: We linked all COVID-19-confirmed deaths in California through February 12, 2021 (N=14,783), to population estimates within strata defined by race/ethnicity, sex, age, USA nativity, region of residence, education, and occupation. We characterized occupations using measures related to COVID-19 exposure including essential sector, telework-ability, and wages. Using sex- stratified regressions, we predicted COVID-19 mortality by race/ethnicity if all races/ethnicities had the same education and occupation distribution as White people and if all people held the safest educational/occupational positions. Results: COVID-19 mortality per 100,000 ranged from 15 for White and Asian females to 139 for Latinx males. Accounting for differences in age, nativity, and region, if all races/ethnicities had the education and occupation distribution of Whites, COVID-19 mortality would be reduced for Latinx males (-22%) and females (-23%), and Black males (-1%) and females (-8%), but increased for Asian males (+22%) and females (+23%). Additionally, if all individuals had the COVID-19 mortality associated with the safest educational and occupational position (Bachelor9s degree, non-essential, telework, highest wage quintile), there would have been 57% fewer COVID-19 deaths. Conclusion: Educational and occupational disadvantage are important risk factors for COVID-19 mortality across all racial/ethnic groups, especially Latinx individuals. Eliminating avoidable excess risk associated with low-education, essential, on- site, and low-wage jobs may reduce COVID-19 mortality and inequities, but is unlikely to be sufficient to achieve equity.
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🖺 Full Text HTML: <a href="https://www.medrxiv.org/content/10.1101/2021.10.29.21265628v1" target="_blank">Contributions of occupation characteristics and educational attainment to racial/ethnic inequities in COVID-19 mortality</a>
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<li><strong>An Objective Search for Unrecognized Bias in Validated COVID-19 Prediction Models</strong> -
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The growing recognition of algorithmic bias has spurred discussions about fairness in artificial intelligence (AI) / machine learning (ML) algorithms. The increasing translation of predictive models into clinical practice brings an increased risk of direct harm from algorithmic bias; however, bias remains incompletely measured in many medical AI applications. Using data from over 56 thousand Mass General Brigham (MGB) patients with confirmed severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), we evaluate unrecognized bias in four AI models developed during the early months of the pandemic in Boston, Massachusetts that predict risks of hospital admission, ICU admission, mechanical ventilation, and death after a SARS-CoV-2 infection purely based on their pre-infection longitudinal medical records. We discuss that while a model can be biased against certain protected groups (i.e., perform worse) in certain tasks, it can be at the same time biased towards another protected group (i.e., perform better). As such, current bias evaluation studies may lack a full depiction of the variable effects of a model on its subpopulations. If the goal is to make a change in a positive way, the underlying roots of bias need to be fully explored in medical AI. Only a holistic evaluation, a diligent search for unrecognized bias, can provide enough information for an unbiased judgment of AI bias that can invigorate follow-up investigations on identifying the underlying roots of bias and ultimately make a change.
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🖺 Full Text HTML: <a href="https://www.medrxiv.org/content/10.1101/2021.10.28.21265629v1" target="_blank">An Objective Search for Unrecognized Bias in Validated COVID-19 Prediction Models</a>
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<li><strong>COVID-19 Vaccine Failure in Chronic Lymphocytic Leukemia and Monoclonal B-Lymphocytosis; Humoral and Cellular Immunity</strong> -
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Chronic lymphocytic leukemia (CLL) is associated with immunocompromise and high risk of severe COVID-19 disease and mortality. Monoclonal B-Lymphocytosis (MBL) patients also have immune impairment. We evaluated humoral and cellular immune responses in 181 patients with CLL (160) and MBL (21) to correlate failed seroconversion (<50AU/mL SARS-CoV-2 II IgG assay, antibody to spike protein, Abbott Diagnostics) following each of 2 vaccine doses with clinical and laboratory parameters. Following first and second doses, 79.2% then 45% of CLL, and 50% then 9.5% of MBL respectively remained seronegative, indicating 2 vaccine doses are crucial. There was significant association between post-dose 2 antibody level with pre-vaccination reduced IgM (p<0.0001), IgG2 (p<0.035), IgG3 (p<0.046), and CLL therapy within 12 months (p<0.001) in univariate analysis. By multivariate analysis, reduced IgM (p<0.0002) and active therapy (p<0.0002) retained significance. There was no significant correlation with age, gender, CLL duration, IgG, IgA or lymphocyte subsets. Anti-spike protein levels varied widely and were lower in CLL, than MBL, and both lower than normal donors. Neutralization activity showed anti-spike levels <1000AU/mL were usually negative for both an early viral clade and the contemporary Delta variant. There were 72.9% of CLL and 53.3% of MBL who failed to reach anti-spike levels >1000AU/mL. In a representative subset of 32 CLL patients, 80% had normal T-cell responses by IFNγ and IL-2 FluoroSpot assay. Failed seroconversion occurred in 36.6%% of treatment-naive patients, 52.9% treatment-naive with reduced IgM, 78.1% on therapy, and 85.7% on ibrutinib. Vaccination failure is very common in CLL, including early-stage disease.
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🖺 Full Text HTML: <a href="https://www.medrxiv.org/content/10.1101/2021.10.28.21265549v1" target="_blank">COVID-19 Vaccine Failure in Chronic Lymphocytic Leukemia and Monoclonal B-Lymphocytosis; Humoral and Cellular Immunity</a>
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</div></li>
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<li><strong>Comparison of the immunogenicity of BNT162b2 and CoronaVac COVID-19 Vaccines in Hong Kong</strong> -
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Background. Few head-to-head evaluations of immune responses to difference vaccines have been reported. Methods. Surrogate virus neutralization test (sVNT) antibody levels of adults receiving either 2 doses of BNT162b2 (n=366) or CoronaVac (n=360) vaccines in Hong Kong were determined. An age-matched subgroup (BNT162b2 (n=49) vs CoronaVac (n=49)) were tested for plaque reduction neutralizing (PRNT) and spike binding antibody and T cell reactivity in peripheral blood mononuclear cells (PBMC). Findings. One month after the second dose of vaccine, BNT162b2 elicited significantly higher PRNT50, PRNT90, sVNT, spike receptor binding, spike N terminal domain binding, spike S2 domain binding, spike FcR binding and antibody avidity levels than CoronaVac. The geometric mean PRNT50 titres in those vaccinated with BNT162b2 and CoronaVac vaccines were 251.6 and 69.45 while PRNT90 titres were 98.91 and 16.57, respectively. All of those vaccinated with BNT162b2 and 45 (91.8%) of 49 vaccinated with CoronaVac achieved the 50% protection threshold for PRNT90. Allowing for an expected seven-fold waning of antibody titres over six months for those receiving CoronaVac, only 16.3% would meet the 50% protection threshold versus 79.6% of BNT162b2 vaccinees. Age was negatively correlated with PRNT90 antibody titres. Both vaccines induced SARS-CoV-2 specific CD4+ and CD8+ T cell responses at 1-month post-vaccination but CoronaVac elicited significantly higher structural protein-specific CD4+ and CD8+ T cell responses. Conclusion. Vaccination with BNT162b2 induces stronger humoral responses than CoronaVac. CoronaVac induce higher CD4+ and CD8+ T cell responses to the structural protein than BNT162b2.
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🖺 Full Text HTML: <a href="https://www.medrxiv.org/content/10.1101/2021.10.28.21265635v1" target="_blank">Comparison of the immunogenicity of BNT162b2 and CoronaVac COVID-19 Vaccines in Hong Kong</a>
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</div></li>
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<li><strong>Vaccination of COVID-19 Convalescent Plasma Donors Increases Binding and Neutralizing Antibodies Against SARS-CoV-2 Variants</strong> -
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Background: COVID-19 convalescent plasma (CCP) was widely used as passive immunotherapy during the first waves of SARS-CoV-2 infection in the US. However, based on observational studies and randomized controlled trials, beneficial effects of CCP were limited, and its use was virtually discontinued early in 2021, in concurrence with increased vaccination rates and availability of monoclonal antibody (mAb) therapeutics. However, as new variants of the SARS-CoV-2 spread, interest in CCP derived from vaccine-boosted CCP donors is resurging. The effect of vaccination of previously infected CCP donors on antibodies against rapidly spreading variants of concern (VOC) is still under investigation. Study Design/Methods: In this study, paired samples from 11 CCP donors collected before and after vaccination were tested to measure binding antibodies levels and neutralization activity against the ancestral and SARS-CoV-2 variants (Wuhan-Hu-1, B.1.1.7, B.1.351, P.1, D614G, B.1.617.2, B.1.427) on the Ortho Vitros Spike Total Ig and IgG assays, the MSD V-PLEX SARS-CoV-2 Panel 6 arrays for IgG binding and ACE2 inhibition, and variant-specific Spike Reporter Viral Particle Neutralization (RVPN) assays. Results/Findings: Binding and neutralizing antibodies were significantly boosted by vaccination, with several logs higher neutralization for all the variants tested post-vaccination compared to the pre-vaccination samples, with no difference found among the individual variants. Discussion: Vaccination of previously infected individuals boosts antibodies including neutralizing activity against all SARS-CoV-2 VOC, including the current spreading delta (B.1.617.2) variant. Animal model and human studies to assess clinical efficacy of vaccine boosted CCP are warranted, especially since 15-20% of current donations in the US are from previously infected vaccine-boosted donors.
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🖺 Full Text HTML: <a href="https://www.medrxiv.org/content/10.1101/2021.10.28.21265622v1" target="_blank">Vaccination of COVID-19 Convalescent Plasma Donors Increases Binding and Neutralizing Antibodies Against SARS-CoV-2 Variants</a>
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<li><strong>Factors associated with acceptance of a digital contact tracing application for COVID-19 in the Japanese working-age population</strong> -
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Objective: This study aimed to determine factors associated with acceptance of a Digital Contact Tracing (DCT) app for Coronavirus Disease 2019 (COVID-19) in the Japanese working-age population. Methods: A cross-sectional study was performed for 27,036 full-time workers registered with an internet survey company during December 2020 in Japan. Results: The rate of downloading the DCT app was 25.1%. The DCT app was more likely to be accepted by people with married status, university graduation or above, higher income, and occupations involving desk work. Fear of COVID-19 transmission, wearing a mask, using hand disinfection, willingness to be vaccinated against COVID-19, and presence of an acquaintance infected with COVID-19 were also associated with a greater likelihood of adopting the app. Conclusions: The present findings have important implications for widespread adoption of DCT apps in working-age populations in Japan and elsewhere.
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🖺 Full Text HTML: <a href="https://www.medrxiv.org/content/10.1101/2021.10.28.21265601v1" target="_blank">Factors associated with acceptance of a digital contact tracing application for COVID-19 in the Japanese working-age population</a>
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<li><strong>Validation of a Novel IoT and AI based Point-of-Care Testing Laboratory: Analytical Accuracy and Clinical Agreement</strong> -
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Point-of-care testing (POCT) offers several advantages over traditional laboratory testing. Offering less invasive testing with a faster turnaround time is not enough if not associated with an acceptable level of accuracy. Here, we show the analytical validation behind the multi-analyte POCT immunochromatography analyser, Hilab Flow (HiF). Analyses from 4,518 clinical samples were compared to College of American Pathologists accredited laboratories for ten quantitative and thirteen qualitative exams. Compatibility between methods was evaluated in terms of association/correlation and clinical agreement. Strong correlation/ concordance was observed between quantitative (CHOL, HDL-c, TG, HbA1c, Glycemia, 25-Hydroxy Vitamin D, TSH, Uric Acid, Creatinine, Urea) and qualitative methods (COVID-19 IgG/ IgM, Beta-hCG, Syphilis, Anti-HBsAg, Zika IgG/ IgM, Influenza A/B, HIV, HCV, HBsAg, Dengue NS1, COVID-19 Ag, Dengue IgG/ IgM, PSA). Approval criteria was obtaining a kappa agreement > 0.8 or a Pearson correlation > 0.9 depending on the exam. Overall percentage agreement was greater than 95% for all exams, indicating a good clinical agreement to gold-standard laboratory-based tests. Results indicate all exams are suitable for POCT and present a reliable performance. Data support the analyser is a useful tool to aid decision-making at the clinical setting, with potential to contribute with healthcare solutions in diagnostic medicine worldwide.
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</p>
|
||
</div>
|
||
<div class="article-link article- html-link">
|
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🖺 Full Text HTML: <a href="https://www.medrxiv.org/content/10.1101/2021.10.29.21264864v1" target="_blank">Validation of a Novel IoT and AI based Point-of-Care Testing Laboratory: Analytical Accuracy and Clinical Agreement</a>
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</div></li>
|
||
</ul>
|
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<h1 data-aos="fade-right" id="from-clinical-trials">From Clinical Trials</h1>
|
||
<ul>
|
||
<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>COVID-19 Study of Pharmacokinetics, Safety, Tolerability, and Efficacy of Intravenous Anti-Spike(s) SARS-CoV-2 Monoclonal Antibodies (Casirivimab+Imdevimab) for the Treatment of Pediatric Patients Hospitalized Due to COVID-19</strong> - <b>Condition</b>: COVID-19<br/><b>Intervention</b>: Drug: casirivimab+imdevimab<br/><b>Sponsor</b>: <br/>
|
||
Regeneron Pharmaceuticals<br/><b>Not yet recruiting</b></p></li>
|
||
<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Immunogenicity and Safety of Heterologous and Homologous Boosting With ChAdOx1-S and CoronaVac or a Formulation of SCB-2019 (COVID-19)</strong> - <b>Condition</b>: Covid19<br/><b>Interventions</b>: Biological: ChAdOx1-S COVID-19 Vaccine(Fiocruz/Oxford- AstraZeneca); Biological: CoronaVac (Sinovac Biotech); Biological: Adjuvanted Recombinant SARS-CoV-2 TrimericS- protein Subunit Vaccine (SCB-2019 - Clover)<br/><b>Sponsors</b>: D’Or Institute for Research and Education; Bill and Melinda Gates Foundation; Instituto Fernandes Figueira<br/><b>Not yet recruiting</b></p></li>
|
||
<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Tocilizumab Versus Baricitinib in Patients With Severe COVID-19</strong> - <b>Condition</b>: COVID-19<br/><b>Interventions</b>: Drug: Tocilizumab; Drug: Baricitinib<br/><b>Sponsor</b>: University Hospital of Patras<br/><b>Recruiting</b></p></li>
|
||
<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>The Efficacy and Safety of Pyramax in Mild to Moderate COVID-19 Patients (Phase3)</strong> - <b>Condition</b>: COVID-19<br/><b>Interventions</b>: Drug: Pyramax; Drug: Placebo<br/><b>Sponsor</b>: <br/>
|
||
Shin Poong Pharmaceutical Co. Ltd.<br/><b>Recruiting</b></p></li>
|
||
<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>JINZHEN for Treatment of Mild to Moderate COVID-19</strong> - <b>Condition</b>: COVID-19<br/><b>Interventions</b>: Drug: JINZHEN Granules for Oral Solution; Drug: Placebo<br/><b>Sponsor</b>: Lianyungang Kanion Group, Ltd.<br/><b>Not yet recruiting</b></p></li>
|
||
<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Effectiveness of Using Interactive Consulting System to Enhance Decision Aids of COVID-19 Vaccination</strong> - <b>Condition</b>: COVID-19<br/><b>Intervention</b>: Device: Chatbot<br/><b>Sponsor</b>: Sun Yat- sen University<br/><b>Recruiting</b></p></li>
|
||
<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Efficacy and Safety of Apixaban in COVID-19 Coagulopathy Patients With Respiratory Severity Under Critical Care</strong> - <b>Condition</b>: COVID-19<br/><b>Intervention</b>: Drug: Apixaban<br/><b>Sponsors</b>: <br/>
|
||
Scotmann Pharmaceuticals; Rawalpindi Medical College<br/><b>Not yet recruiting</b></p></li>
|
||
<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Clinical Validation of Breath Analyser Tests for Diagnosis of COVID-19.</strong> - <b>Condition</b>: COVID-19<br/><b>Intervention</b>: Diagnostic Test: Breath Sample analysis<br/><b>Sponsor</b>: Tera Group<br/><b>Recruiting</b></p></li>
|
||
<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Efficacy, Safety, and Immunogenicity Study of the Recombinant Two-component COVID-19 Vaccine (CHO Cell)</strong> - <b>Condition</b>: COVID-19<br/><b>Interventions</b>: Biological: Recombinant two-component COVID-19 vaccine (CHO cell); Biological: Placebo<br/><b>Sponsor</b>: Jiangsu Rec-Biotechnology Co., Ltd.<br/><b>Not yet recruiting</b></p></li>
|
||
<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Cardiovascular Assessment in Patient Recovered From COVID-19 and Recovery of Autonomic Nervous System in Association With the Severity of the Disease</strong> - <b>Condition</b>: COVID-19<br/><b>Intervention</b>: Other: Non invasive cardiovascular monitoring with CNAP device of arterial pressure, ECG and respiratory activity<br/><b>Sponsor</b>: IRCCS Policlinico S. Donato<br/><b>Recruiting</b></p></li>
|
||
<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Safety and Efficacy of KOVIR (TD0068) in the Combination Regimen With Background Treatment in COVID-19 Patients (KOVIR)</strong> - <b>Condition</b>: COVID-19<br/><b>Interventions</b>: Dietary Supplement: KOVIR (TD0068) oral capsule; Dietary Supplement: Placebo oral capsule<br/><b>Sponsors</b>: Sunstar Joint Stock Company; Vietstar Biomedical Research<br/><b>Recruiting</b></p></li>
|
||
<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Phase 1 Trial of ChAd68 and Ad5 Adenovirus COVID-19 Vaccines Delivered by Aerosol</strong> - <b>Conditions</b>: COVID-19; SARS-CoV2 Infection<br/><b>Interventions</b>: Biological: Ad5-triCoV/Mac; Biological: ChAd-triCoV/Mac<br/><b>Sponsors</b>: McMaster University; Canadian Institutes of Health Research (CIHR)<br/><b>Not yet recruiting</b></p></li>
|
||
<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Effect of PBM on Functional Capacity and Fatigability in Post Covid-19 Elderly</strong> - <b>Condition</b>: Post Covid-19 Elderly<br/><b>Interventions</b>: Radiation: photobiomodulation; Other: placebo intervention by photobiomodulation device<br/><b>Sponsor</b>: Cairo University<br/><b>Recruiting</b></p></li>
|
||
<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Recombinant SARS-CoV-2 Fusion Protein Vaccine (V-01) Booster Study</strong> - <b>Condition</b>: COVID-19 Pandemic<br/><b>Interventions</b>: Biological: Recombinant SARS-CoV-2 Fusion Protein Vaccine (V-01); Biological: Blank Preparation of Recombinant SARS-CoV-2 Fusion Protein Vaccine (V-01)<br/><b>Sponsor</b>: Livzon Pharmaceutical Group Inc.<br/><b>Not yet recruiting</b></p></li>
|
||
<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Home-based Brain Stimulation Treatment for Post-acute Sequelae of COVID-19 (PASC)</strong> - <b>Condition</b>: Post-Acute Sequelae of COVID-19<br/><b>Interventions</b>: Device: Active tDCS; Device: Sham tDCS<br/><b>Sponsor</b>: Massachusetts General Hospital<br/><b>Not yet recruiting</b></p></li>
|
||
</ul>
|
||
<h1 data-aos="fade-right" id="from-pubmed">From PubMed</h1>
|
||
<ul>
|
||
<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Potential of turmeric-derived compounds against RNA-dependent RNA polymerase of SARS-CoV-2: An in-silico approach</strong> - The Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) is the causative agent of the COVID-19 pandemic. Currently, there are no particular antivirals available to battle with COVID-19. The RNA-dependent RNA polymerase (RdRp) has emerged as a novel drug target due to its essential role in virus replication. In this study, turmeric-derived compounds were chosen and subjected to in-silico analysis to evaluate their binding affinity against the RdRp-RNA complex of SARS-CoV-2. Our in-silico…</p></li>
|
||
<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Dysregulation of RNA interference components in COVID-19 patients</strong> - OBJECTIVE: Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is the novel coronavirus causing severe respiratory illness (COVID-19). This virus was initially identified in Wuhan city, a populated area of the Hubei province in China, and still remains one of the major global health challenges. RNA interference (RNAi) is a mechanism of post-transcriptional gene silencing that plays a crucial role in innate viral defense mechanisms by inhibiting the virus replication as well as…</p></li>
|
||
<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>APOL1 risk variants in individuals of African genetic ancestry drive endothelial cell defects that exacerbate sepsis</strong> - The incidence and severity of sepsis is higher among individuals of African versus European ancestry. We found that genetic risk variants (RVs) in the trypanolytic factor apolipoprotein L1 (APOL1), present only in individuals of African ancestry, were associated with increased sepsis incidence and severity. Serum APOL1 levels correlated with sepsis and COVID-19 severity, and single-cell sequencing in human kidneys revealed high expression of APOL1 in endothelial cells. Analysis of mice with…</p></li>
|
||
<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Specific delivering of RNAi using Spike’s aptamer-functionalized lipid nanoparticles for targeting SARS-CoV-2: A strong anti-Covid drug in a clinical case study</strong> - Coronavirus (SARS-CoV-2) as a global pandemic has attracted the attention of many scientific centers to find the right treatment. We expressed and purified the recombinant receptor-binding domain (RBD) of the SARS-CoV-2 spike (S) protein, and specific RBD aptamers were designed using SELEX method. RNAi targeting nucleocapsid phosphoprotein was synthesized and human lung cells were inoculated with aptamer-functionalized lipid nanoparticles (LNPs) containing RNAi. The results demonstrated that RBD…</p></li>
|
||
<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Snake venom phospholipase A(2)s exhibit strong virucidal activity against SARS-CoV-2 and inhibit the viral spike glycoprotein interaction with ACE2</strong> - The COVID-19 pandemic caused by SARS-CoV-2 requires new treatments both to alleviate the symptoms and to prevent the spread of this disease. Previous studies demonstrated good antiviral and virucidal activity of phospholipase A(2)s (PLA(2)s) from snake venoms against viruses from different families but there was no data for coronaviruses. Here we show that PLA(2)s from snake venoms protect Vero E6 cells against SARS-CoV-2 cytopathic effects. PLA(2)s showed low cytotoxicity to Vero E6 cells with…</p></li>
|
||
<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Racial/Ethnic Disparities in State-Level COVID-19 Vaccination Rates and Their Association with Structural Racism</strong> - CONCLUSIONS: There are marked racial disparities in COVID-19 vaccination throughout the USA, and structural racism is strongly associated with the magnitude of these disparities. Efforts to reduce these disparities must address not only individual behavior but must also confront the structural barriers that are inhibiting equitable vaccine distribution.</p></li>
|
||
<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Virtual Screening on Marine Natural Products for Discovering TMPRSS2 Inhibitors</strong> - Although SARS-CoV-2 entry to cells strictly depends on angiotensin-converting enzyme 2 (ACE2), the virus also needs transmembrane serine protease 2 (TMPRSS2) for its spike protein priming. It has been shown that the entrance of SARS- CoV-2 through ACE2 can be blocked by cellular TMPRSS2 blockers. The main aim of this study was to find potential inhibitor(s) of TMPRSS2 through virtual screening against a homology model of TMPRSS2 using the library of marine natural products (MNPs). The homology…</p></li>
|
||
<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Acting Proactively to Manage Job Insecurity: How Worrying About the Future of One’s Job May Obstruct Future-Focused Thinking and Behavior</strong> - An increasing number of people experience insecurity about the future of their job, making it more important than ever to manage this insecurity. While previous research suggests that proactive coping is a promising way to alleviate job insecurity, we suggest that, paradoxically, it may be particularly difficult to act proactively when feeling emotionally distressed about the future of one’s job. Drawing on the principle of resource scarcity and the Conservation of Resources theory, we propose…</p></li>
|
||
<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Co-infection of SARS-CoV-2 and influenza virus causes more severe and prolonged pneumonia in hamsters</strong> - Coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is currently a serious public health concern worldwide. Notably, co-infection with other pathogens may worsen the severity of COVID-19 symptoms and increase fatality. Here, we show that co-infection with influenza A virus (IAV) causes more severe body weight loss and more severe and prolonged pneumonia in SARS-CoV-2-infected hamsters. Each virus can efficiently spread in the lungs without…</p></li>
|
||
<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Characterizing the BCR repertoire during lymphocyte reduction and recovery mediated by cyclophosphamide and granulocyte-macrophage colony-stimulating factor</strong> - Leukopenia is a common manifestation of many diseases, including global outbreak SAS-CoV-2 infection. Granulocyte- macrophage colony-stimulating factor (GM -CSF) has been proved to be effective in promoting lymphocyte regeneration, but adverse immunological effects have also emerged. This study aim to investigate the effect of GM -CSF on BCR heavy chain CDR3 repertoire while promoting lymphocyte regeneration. Cyclophosphamide (CTX) and GM -CSF were used to inhibit and stimulate bone marrow…</p></li>
|
||
<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>COVID-19: A review of newly formed viral clades, pathophysiology, therapeutic strategies and current vaccination tasks</strong> - Today, the world population is facing an existential threat by an invisible enemy known as severe acute respiratory syndrome coronavirus 2 (SARS-COV-2) or COVID-19. It is highly contagious and has infected a larger fraction of human population across the globe on various routes of transmission. The detailed knowledge of the SARS-CoV-2 structure and clinical aspects offers an important insight into the evolution of infection, disease progression and helps in executing the different therapies…</p></li>
|
||
<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Fentanyl-induced acute and conditioned behaviors in two inbred mouse lines: potential role for Glyoxalase</strong> - An increase in opioid-overdose deaths was evident before the COVID-19 pandemic, and has escalated since its onset. Fentanyl, a highly potent synthetic opioid, is the primary driver of these recent trends. The current study used two inbred mouse strains, C57BL/6J and A/J, to investigate the genetics of behavioral responses to fentanyl. Mice were tested for conditioned place preference and fentanyl-induced locomotor activity. C57BL/6J mice formed a conditioned place preference to fentanyl…</p></li>
|
||
<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Heart-rate-variability (HRV), predicts outcomes in COVID-19</strong> - CONCLUSION: Higher HRV predicts greater chances of survival, especially in patients aged 70 years and older with COVID-19, independent of major prognostic factors. Low HRV predicts ICU indication and admission in the first week after hospitalization.</p></li>
|
||
<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Quercetin and its derivates as antiviral potentials: A comprehensive review</strong> - Quercetin, widely distributed in fruits and vegetables, is a flavonoid known for its antioxidant, antiviral, antimicrobial, and antiinflammatory properties. Several studies highlight the potential use of quercetin as an antiviral, due to its ability to inhibit the initial stages of virus infection, to be able to interact with proteases important for viral replication, and to reduce inflammation caused by infection. Quercetin could also be useful in combination with other drugs to potentially…</p></li>
|
||
<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>SARS-CoV-2 Spike Glycoprotein S1 Induces Neuroinflammation in BV-2 Microglia</strong> - In addition to respiratory complications produced by SARS-CoV-2, accumulating evidence suggests that some neurological symptoms are associated with the disease caused by this coronavirus. In this study, we investigated the effects of the SARS-CoV-2 spike protein S1 stimulation on neuroinflammation in BV-2 microglia. Analyses of culture supernatants revealed an increase in the production of TNF-α, IL-6, IL-1β and iNOS/NO. S1 also increased protein levels of phospho-p65 and phospho-IκBα, as well…</p></li>
|
||
</ul>
|
||
<h1 data-aos="fade-right" id="from-patent-search">From Patent Search</h1>
|
||
<ul>
|
||
<li><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Anti-SARS-CoV-2 antibodies and uses thereof I</strong> - - <a href="https://patentscope.wipo.int/search/en/detail.jsf?docId=AU339290405">link</a></p></li>
|
||
<li><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Anti-SARS-CoV-2 antibodies and uses thereof II</strong> - - <a href="https://patentscope.wipo.int/search/en/detail.jsf?docId=AU339290406">link</a></p></li>
|
||
<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>휴대용 자화 육각수물 발생기</strong> - 본인의 발명은, 사람의 신체에서 육각수물 생성에는 한계가 있으며, 동맥혈관, 정맥혈관 내부 혈액은 수분이 약 90% 이며, 건강한 성인이면, 육각수 물은 약 62% 이며, COVID-19 환자, 사고의 부상, 17만개의 질병, 질환으로 조직세포가 손상되면 자기 신체수복을 위해서 육각수 물을 평소보다 많이 흡수 하면서 동반 산소부족 상태가 되며, 육각수물 보충 없이 산소 호흡기를 사용하면 심각한 후유증이 발병 할 수 있다.</p></li>
|
||
</ul>
|
||
<p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom">육각수물 부족 상태를 해결하기 위해서, 객관적인 과학적으로 네오디뮴(원자번호 = 60) 3.000 가우스의 자기장을 이용하여서 육각수 물을 62% ~ 80% 이상, 상시 유지 시켜주는 제조 방법이며, 휴대용으로 항시 착용 가능하다. 결론은 COVID-19, 질병, 질환의 근본적인 원인은, 육각수물 부족 상태가 되면 동반 산소 부족 상태가 되면서, 염증 -> 통증 -> 극심한 통증 -> 석회화, 섬유화, 암 까지 발병 한다. - <a href="https://patentscope.wipo.int/search/en/detail.jsf?docId=KR338655754">link</a></p>
|
||
<ul>
|
||
<li><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>휴대용 자화 육각수물 발생기</strong> - 본인의 발명은, 사람의 신체에서 육각수 생성에는 한계가 있으며, 동맥혈관, 정맥혈관 내부 혈액은 수분이 90% 이며, 육각수물은 약 62% 이며, COVID-19, 사고 부상, 질병, 질환으로 조직세포가 손상되면 자기 신체수복을 위해서 육각수물을 평소보다 많이 흡수하면서 산소부족 상태가 되며, 육각수 보충 없이 산소호흡기를 사용하면 심각한 후유증이 발병 할 수 있다 육각수물 부족 상태를 해결하기 위해서, 객관적인 과학적으로 네오디뮴(원자번호 = 60) 3.000 가우스의 자기장을 이용하여서 육각수물을 62% ~ 80% 상시 유지 시켜주는 제조 방법이며, 휴대용으로 항시 착용 가능하다. 결론은 COVID-19, 질병, 질환의 근본적인 원인은, 육각수물 부족 상태가 되면 동반 산소 부족 상태가 되면서, 염증 -> 통증 -> 극심한 통증 -> 석회화, 섬유화, 암 까지 발병 한다. - <a href="https://patentscope.wipo.int/search/en/detail.jsf?docId=KR338650904">link</a></p></li>
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<li><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>用于检测新冠病毒的配对抗体及其应用</strong> - 本发明涉及一种用于检测新冠病毒的配对抗体及其应用，其包括第一检测抗体和第二检测抗体；第一检测抗体具有如SEQ ID NO:1~3所示的轻链互补决定区，以及如SEQ ID NO:4~6所示的重链互补决定区，第二检测抗体具有如SEQ ID NO:7~9所示的轻链互补决定区，以及如SEQ ID NO:10~12所示的重链互补决定区。本发明筛选得到具有上述互补决定区序列的配对抗体，其识别N蛋白的不同表位，且由于两种抗体识别的是N蛋白非核酸结合区域，不会受核酸负电荷干扰，对核酸抗原表现出了兼容性，具有较好的稳定性，同时上述配对抗体具有较高的亲和力，病毒N蛋白检测灵敏度高。 - <a href="https://patentscope.wipo.int/search/en/detail.jsf?docId=CN339127990">link</a></p></li>
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<li><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>抗KL-6双特异性抗体及基因、重组载体、药物、试剂盒</strong> - 本发明公开了抗KL‑6双特异性抗体或其变体、或其功能性片段，所述抗KL‑6双特异性抗体或其变体、或其功能性片段包括抗PTS域和抗SEA域，所述抗PTS域的重链可变区的CDR1、CDR2和CDR3分别具有SEQ ID NO.1~3所示的氨基酸序列。本发明还提供了基因、重组载体、药物、试剂盒。本发明的抗KL‑6双特异性抗体或其变体、或其功能性片段用于与KL‑6蛋白特异性结合，基因、重组载体用于抗KL‑6双特异性抗体的制备，药物用于治疗KL‑6蛋白引起的相关疾病，试剂盒用于KL‑6蛋白的定量检测。 - <a href="https://patentscope.wipo.int/search/en/detail.jsf?docId=CN338723529">link</a></p></li>
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<li><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>基于决策树模型与逻辑回归模型组合的感染筛查方法</strong> - 本发明公开了一种基于决策树模型与逻辑回归模型组合的感染筛查方法，其检测操作方便，可提高感染筛查准确性，该方法基于生命体征监护仪实现，生命体征监护仪与远程数据服务平台通信连接，远程数据服务平台依据临床数据进行感染筛查，该方法包括：通过生命体征监护仪检测获取用户临床数据，将临床数据随机划分为训练集、测试集，将训练集均分为两份：训练集A、训练集B，基于训练集A构建决策树模型，同时，对训练集A进行特征选择，将关键特征向量作为已构建的决策树模型的输入，获取新构造特征向量，基于组合特征向量，构造逻辑回归模型，基于决策树模型和逻辑回归模型组合，对测试集进行预测分类，获取分类结果。 - <a href="https://patentscope.wipo.int/search/en/detail.jsf?docId=CN339127711">link</a></p></li>
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<li><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>病毒中和抗体与非中和抗体联合检测方法、检测卡及应用</strong> - 一种病毒中和抗体与非中和抗体联合检测方法、检测卡及其应用，通过病毒受体结合蛋白夹心法原理检测中和抗体，其为通过提前设置病毒受体结合蛋白和能阻断中和抗体与其结合的作为配体的蛋白所形成的复合物，将靶向受体蛋白的非中和抗体提前捕获，保证后续通过夹心法检测中和抗体的特异性。解决了现有技术中中和抗体检测灵敏度低、特异性差以及不能区分中和抗体与非中和抗体的问题，提供了一种简便、快速、灵敏度高、特异性高的病毒中和抗体与非中和抗体联合检测方法、检测卡及其应用。 - <a href="https://patentscope.wipo.int/search/en/detail.jsf?docId=CN338613501">link</a></p></li>
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<li><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>扩增△500-532的SARS-CoV-2 Nsp1基因的引物对及其检测方法</strong> - 本发明公开了一种扩增Δ500‑532的SARS‑CoV‑2 Nsp1基因的引物对及其检测方法。引物对的具体序列如SEQ ID NO.1和SEQ ID NO.2所示，其检测方法为：采用引物对对SARS‑CoV‑2 Nsp1基因进行PCR，对PCR产物进行变性退火后，加入T7EI内切酶孵育，再进行PCR扩增，并判断是否存在Δ500‑532的SARS‑CoV‑2 Nsp1基因。本发明可简便快捷的区分出SARS‑CoV‑2 Nsp1基因突变型和野生型。 - <a href="https://patentscope.wipo.int/search/en/detail.jsf?docId=CN339334235">link</a></p></li>
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<li><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>多肽及其在新型冠状病毒检测中的应用</strong> - 本发明涉及生物医学领域，具体而言，涉及一种多肽及其在新型冠状病毒检测中的应用。所述多肽包括如下部分：S——Linker——N——avi‑tag。通过经过优化的刚性linker序列把S蛋白和N蛋白串联起来，使得这两个蛋白即具备相对独立的空间构象，又增加了许多优势表位，很大程度上提高了灵敏度和信号值；此外，融合蛋白引入Avi‑tag，使得重组蛋白可以通过固定的位点被固相化，降低包被过程所带来的空间位阻的影响。由此，该多肽能够达到很高的灵敏度和特异性，并且不易发生漏检。 - <a href="https://patentscope.wipo.int/search/en/detail.jsf?docId=CN339334229">link</a></p></li>
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