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193 lines
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<meta content="width=device-width, initial-scale=1.0, user-scalable=yes" name="viewport"/>
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<title>20 September, 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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</ul>
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<h1 data-aos="fade-right" id="from-preprints">From Preprints</h1>
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<li><strong>A mixed methods study of the psychological impact of the COVID-19 pandemic</strong> -
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This study examined the psychological impact of the COVID-19 pandemic. In May 2020, adults living in the United States (N=345) completed an online survey on their functioning, psychological stress, health locus of control, and emotion regulation. Inductive thematic analysis was used to identify themes in qualitative responses about the functional impact of the COVID-19 pandemic. Latent profile analysis and regression models were used to examine patterns in participants’ stress and changes in functioning. Qualitative and quantitative results converged to show that many participants were negatively impacted by the COVID-19 pandemic, albeit one-third of participants reported improved functioning since the start of the pandemic. Health locus of control and avoidant emotion regulation predicted increased stress. Age, essential worker status, health locus of control, and active emotion regulation predicted changes in functioning. These findings extend existing knowledge about the psychological impact of the COVID-19 pandemic and highlight opportunities for promoting mental health and functioning in the wake of the pandemic.
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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://psyarxiv.com/tjz32/" target="_blank">A mixed methods study of the psychological impact of the COVID-19 pandemic</a>
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</div></li>
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<li><strong>A three-wave network analysis of COVID-19’s impact on schizotypal traits, paranoia and mental health through loneliness</strong> -
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<div>
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<strong>This manuscript has been submitted for publication and is likely to be edited as part of the peer-review process. Correspondence regarding this paper should be addressed to Keri Ka-Yee Wong, keri.wong@ucl.ac.uk.</strong> Background. The 2019 coronavirus (COVID-19) pandemic has impacted people’s mental wellbeing. Studies to date have examined the prevalence of mental health symptoms (anxiety, depression, loneliness), yet fewer longitudinal studies have compared across background factors and other psychological variables to identify vulnerable sub-groups. This study tests to what extent higher levels of psychotic-like experiences – indexed by schizotypal traits and paranoia – are associated with various mental health variables 6- and 12-months since April 2020. Methods. Over 2,300 adult volunteers (18-89 years, female=74.9%) with access to the study link online were recruited from the UK, USA, Greece, and Italy. Self-reported levels of schizotypy, paranoia, anxiety, depression, aggression, loneliness, and stress from three timepoints (17 April to 13 July 2020, N1 =1,599; 17 October to 31 January 2021, N2 =774; and 17 April to 31 July 2021, N3 =586) were mapped using network analysis and compared across time and background variables (sex, age, income, country). Results. Schizotypal traits and paranoia were positively associated with poorer mental health through loneliness, with no effect of age, sex, income levels, countries, and timepoints. Loneliness was the most influential variable across all networks, despite overall reductions in levels of loneliness, schizotypy, paranoia, and aggression during the easing of lockdown. Individuals with higher levels of schizotypal traits/paranoia reported poorer mental health outcomes than individuals in the low-trait groups. Conclusion. Schizotypal traits and paranoia are associated with poor mental health outcomes through self-perceived loneliness, suggesting that increasing social/community cohesion may improve individuals’ mental wellbeing in the long run.
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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://psyarxiv.com/p9wrv/" target="_blank">A three-wave network analysis of COVID-19’s impact on schizotypal traits, paranoia and mental health through loneliness</a>
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</div></li>
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<li><strong>Investigating orthographic versus auditory cross-situational word learning with online and lab-based research</strong> -
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<div>
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In recent years, cross-situational word learning (CSWL) paradigms have shown that novel words can be learned through implicit statistical learning. So far, CSWL studies using adult populations have focused on the presentation of spoken words (auditory information), however, words can also be learned through their written form (orthographic information). This study compares auditory and orthographic presentation of novel words with different degrees of phonological overlap using the CSWL paradigm. Additionally, we also present a lab-based and online-based approach to testing behavioural experiments. Due to the COVID-19 pandemic, lab testing was prematurely terminated, and testing was continued online using a newly created online testing protocol. Analyses first compared accuracy and response times across modalities, with our findings showing better and faster recognition performance for CSWL when novel words are presented through their written (orthographic condition) than through their spoken forms (auditory condition). As well, Bayesian modelling found that accuracy for the auditory condition was higher online compared to the lab-based experiment, whereas performance in the orthography condition was high in both experiments and generally outperformed the auditory condition. We discuss the implications of our findings for modality of presentation, as well as the benefits of our online testing protocol and its implementation for future research.
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<div class="article-link article-html- link">
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🖺 Full Text HTML: <a href="https://psyarxiv.com/tpn5e/" target="_blank">Investigating orthographic versus auditory cross-situational word learning with online and lab-based research</a>
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<li><strong>Covid19 : The Specs from Immunity</strong> -
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<div>
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REF : ( https://encyclopedia.pub/1427 ).Immunity is an important term directly related to prevent any kind of infection spreading -particularly Covid19 under this pandemic situation . The specs of immunity depends on various factors like Foods & Diets , Environment / Ecology , Good Habits , Natural Remedies like Herbs& Anti-Oxidant therapy. Now we will discuss the every aspects of Immunity for boosting it up for a natural prevention of Covid19 ! . If we maintain the following factors strictly our immune system will be strong enough to fight against this Viral Curse !! . The most important is the REFERENCE section where some queries / discussions are pointed out related to the Immunity factors majorly .
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<div class="article-link article-html-link">
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🖺 Full Text HTML: <a href="https://osf.io/zswy8/" target="_blank">Covid19 : The Specs from Immunity</a>
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<li><strong>Option-based guarantees to accelerate urgent, high risk vaccines: a new market-shaping approach</strong> -
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<div>
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Over the coming year, preventing further waves of COVID-19 and reducing its impact on society will likely require vaccines, so accelerating their availability is critical. However, preparations for large-scale manufacturing, such as building production facilities, are typically delayed until a vaccine is proven safe and effective. This makes sense from a commercial perspective, but the additional time before the vaccine becomes available incurs great costs in terms of lives lost and damage to the economy. There are several potential solutions to reducing the delay between the vaccine being proven effective and its being mass-produced, all of which involve incentives or subsidies to invest in production facilities. We review these, and propose a novel approach using “option-based guarantees,” in which the government commits to paying a proportion of the manufacturer’s preparation costs should the product turn out not to be viable. This counterintuitive approach of payment for failure is appropriate because in the case of success, a company makes money from the product itself, and does not need additional money from the government. This reduces the risk to the company while maintaining an incentive to produce a high-quality product quickly and at scale.
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🖺 Full Text HTML: <a href="https://osf.io/swd4a/" target="_blank">Option-based guarantees to accelerate urgent, high risk vaccines: a new market-shaping approach</a>
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<li><strong>Sex differences in cardio-pulmonary pathology of SARS-CoV2 infected and Trypanosoma cruzi co-infected mice</strong> -
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Coronavirus disease-2019 (COVID-19) caused by Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2; CoV2) is a deadly contagious infectious disease. For those who survived COVID-19, post-COVID cardiac damage poses a major threat for the progression of cardiomyopathy and heart failure. Currently, the number of COVID-related cases and deaths is increasing in Latin America, where a major COVID comorbidity is Chagas heart disease (caused by the parasite Trypanosoma cruzi). Here, we investigated the effect of T. cruzi infection on the pathogenesis and severity of CoV2 infection and, conversely, the effect of CoV2 infection on heart pathology during coinfection. We used transgenic human angiotensin- converting enzyme 2 (huACE2) mice infected with CoV2, T. cruzi, or coinfected with both in this study. Our study shows for the first time that white adipose tissue (WAT) serves as a reservoir for CoV2 and the persistence of CoV2 in WAT alters adipose tissue morphology and adipocyte physiology. Our data demonstrate a correlation between the loss of fat cells and the pulmonary adipogenic signaling and pathology in CoV2 infection. The viral load in the lungs is inversely proportional to the viral load in WAT, which differs between male and female mice. Our findings also suggest that adiponectin-PPAR signaling may differently regulate Chagas cardiomyopathy in coinfected males and females. We conclude that adipogenic signaling may play important roles in cardio-pulmonary pathogenesis during CoV2 infection and T. cruzi coinfection. The levels of adiponectin isomers differ between male and female mice during CoV2 infection and coinfection with T. cruzi, which may differently regulate inflammation, viral load, and pathology in the lungs of both the sexes. Our findings are in line with other clinical observations that reported that males are more susceptible to COVID-19 than females and suffer greater pulmonary damage.
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<div class="article-link article-html-link">
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🖺 Full Text HTML: <a href="https://www.biorxiv.org/content/10.1101/2021.09.18.460895v1" target="_blank">Sex differences in cardio-pulmonary pathology of SARS-CoV2 infected and Trypanosoma cruzi co-infected mice</a>
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<li><strong>Copper(II) Gluconate Boosts the Anti-SARS-CoV-2 Effect of Disulfiram in Vitro</strong> -
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Disulfiram is a 70-year-old anti-alcoholism drug, while copper(II) gluconate (Cu(Glu)2) is a commonly used food additive or copper supplement. Here we disclose that the combination of disulfiram and copper(II) gluconate drastically enhances the anti-SARS-CoV-2 activity at the cellular level as compared to disulfiram or copper(II) gluconate alone. A 1:1 mixture of disulfiram and copper(II) gluconate shows an EC50 value of 154 nM against SARS-CoV-2 at the cellular level, much lower than the 17.45 M reported for disulfiram alone. A preliminary mechanism is proposed to rationalize the observed promotional effect.
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🖺 Full Text HTML: <a href="https://www.biorxiv.org/content/10.1101/2021.09.17.460613v1" target="_blank">Copper(II) Gluconate Boosts the Anti- SARS-CoV-2 Effect of Disulfiram in Vitro</a>
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</div></li>
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<li><strong>Genetically diverse mouse models of SARS-CoV-2 infection model clinical variation and cytokine responses in COVID-19</strong> -
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Host genetics are a significant determinant of coronavirus disease 2019 (COVID-19). Animal models that reflect genetic diversity and a range of clinical outcomes observed in human populations are needed to understand mechanisms of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection dynamics and disease. Here, we report a mouse panel comprising the diverse genetic backgrounds of the Collaborative Cross (CC) founder strains crossed to C57BL/6J mice expressing the K18-hACE2 transgene3 that enables infection by SARS-CoV-2. Infection of CCxK18-hACE2 F1 progeny resulted in a spectrum of weight loss, survival, viral replication kinetics, histopathology, and cytokine profiles, some of which were sex-specific. Importantly, survival was closely associated with early type I interferon expression and a phased proinflammatory response distinct from mice with severe disease. Thus, dynamics of inflammatory responses observed in COVID-19 can be modeled in diverse mice that provide a genetically tractable platform for understanding antiviral immunity and evaluating countermeasures.
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<div class="article-link article-html-link">
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🖺 Full Text HTML: <a href="https://www.biorxiv.org/content/10.1101/2021.09.17.460664v1" target="_blank">Genetically diverse mouse models of SARS-CoV-2 infection model clinical variation and cytokine responses in COVID-19</a>
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<li><strong>3D virtual Histopathology of Cardiac Tissue from Covid-19 Patients based on Phase-Contrast X-ray Tomography</strong> -
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For the first time, we have used phase-contrast x-ray tomography to characterize the three-dimensional (3d) structure of cardiac tissue from patients who succumbed to Covid-19. By extending conventional histopatholocigal examination by a third dimension, the delicate pathological changes of the vascular system of severe Covid-19 progressions can be analyzed, fully quantified and compared to other types of viral myocarditis and controls. To this end, cardiac samples with a cross section of 3:5mm were scanned at the synchrotron in a parallel beam configuration. The vascular network was segmented by a deep learning architecture suitable for 3d datasets (V-net), trained by sparse manual annotations. Pathological alterations of vessels, concerning the variation of diameters and the amount of small holes, were observed, indicative of elevated occurrence of intussusceptive angiogenesis, also confirmed by scanning electron microscopy. Further, we implemented a fully automated analysis of the tissue structure in form of shape measures based on the structure tensor. The corresponding distributions show that the histopathology of Covid-19 differs from both influenza and typical coxsackie virus myocarditis.
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</div>
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🖺 Full Text HTML: <a href="https://www.biorxiv.org/content/10.1101/2021.09.16.460594v1" target="_blank">3D virtual Histopathology of Cardiac Tissue from Covid-19 Patients based on Phase-Contrast X-ray Tomography</a>
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<li><strong>Altered fibrin clot structure contributes to thrombosis risk in severe COVID-19</strong> -
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The high incidence of thrombotic events suggests a possible role of the contact system pathway in COVID-19 pathology. Here, we demonstrate altered levels of factor XII (FXII) and its activation products in two independent cohorts of critically ill COVID-19 patients in comparison to patients suffering from severe acute respiratory distress syndrome due to influenza virus (ARDS-influenza). Compatible with this data, we report rapid consumption of FXII in COVID-19, but not in ARDS-influenza, plasma. Interestingly, the kaolin clotting time was not prolonged in COVID-19 as compared to ARDS-influenza. Using confocal and electron microscopy, we show that increased FXII activation rate, in conjunction with elevated fibrinogen levels, triggers formation of fibrinolysis-resistant, compact clots with thin fibers and small pores in COVID-19. Accordingly, we observed clot lysis in 30% of COVID-19 patients and 84% of ARDS influenza subjects. Analysis of lung tissue sections revealed wide-spread extra- and intra-vascular compact fibrin deposits in COVID-19. Together, our results indicate that elevated fibrinogen levels and increased FXII activation rate promote thrombosis and thrombolysis resistance via enhanced thrombus formation and stability in COVID-19.
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🖺 Full Text HTML: <a href="https://www.biorxiv.org/content/10.1101/2021.09.17.460777v1" target="_blank">Altered fibrin clot structure contributes to thrombosis risk in severe COVID-19</a>
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<li><strong>The evolutionary landscape of SARS-CoV-2 variant B.1.1.519 and its clinical impact in Mexico City</strong> -
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<p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom">
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The SARS-CoV-2 pandemic is one of the most concerning health problems around the globe. We report the emergence of SARS-CoV-2 variant B.1.1.519 in Mexico City. This variant represented up to 90% of sequenced cases in February 2021. It is characterized by three amino acid changes in the spike protein: T478K, P681H, and T732A. We report the effective reproduction number of B.1.1.519 and present evidence of its geographical origin based on phylogenetic analysis. We also studied its evolution via haplotype analysis and identified the most recurrent haplotypes. Finally, we studied the clinical impact of B.1.1.519: patients infected with variant B.1.1.519 showed a highly significant adjusted odds ratio (aOR) increase of 1.85 over non-B.1.1.519 patients for developing a severe/critical outcome (P = 0.000296, 1.33-2.6 95% CI) and a 2.35-fold increase for hospitalization (P = 0.005, 1.32-4.34 95% CI). The continuous monitoring of this and other variants will be required to control the ongoing pandemic as it evolves.
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🖺 Full Text HTML: <a href="https://www.medrxiv.org/content/10.1101/2021.09.07.21262911v2" target="_blank">The evolutionary landscape of SARS-CoV-2 variant B.1.1.519 and its clinical impact in Mexico City</a>
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<li><strong>Subcutaneous REGEN-COV Antibody Combination in Early Asymptomatic SARS-CoV-2 Infection: A Randomized Clinical Trial</strong> -
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Importance: Easy-to-administer antiviral treatments may be used to prevent progression from asymptomatic infection to COVID-19 and to reduce viral carriage. Objective: Evaluate the efficacy and safety of subcutaneous casirivimab and imdevimab antibody combination (REGEN-COV) to prevent progression from early asymptomatic SARS-CoV–2 infection to COVID-19. Design: Randomized, double-blind, placebo-controlled, phase 3 study that enrolled asymptomatic close contacts living with a SARS-CoV-2–infected household member (index case). Participants who were SARS-CoV-2 RT- qPCR–positive at baseline were included in the analysis reported here. Setting: Multicenter trial conducted at 112 sites in the United States, Romania, and Moldova. Participants: Asymptomatic individuals ≥12 years of age were eligible if identified within 96 hours of collection of the index case9s positive SARS-CoV-2 test sample. Interventions: A total of 314 asymptomatic, SARS-CoV-2 RT-qPCR–positive individuals living with an infected household contact were randomized 1:1 to receive a single dose of subcutaneous REGEN-COV 1200mg (n=158) or placebo (n=156). Main Outcome(s) and Measure(s): The primary endpoint was the proportion of participants who developed symptomatic COVID-19 during the 28-day efficacy assessment period. The key secondary efficacy endpoints were the number of weeks of symptomatic SARS-CoV-2 infection and the number of weeks of high viral load (>4 log10 copies/mL). Safety was assessed in all treated participants. Results: Subcutaneous REGEN-COV 1200mg significantly prevented progression from asymptomatic to symptomatic disease compared with placebo (31.5% relative risk reduction; 29/100 [29.0%] vs 44/104 [42.3%], respectively; P=.0380). REGEN-COV reduced the overall population burden of high–viral load weeks (39.7% reduction vs placebo; 48 vs 82 total weeks; P=.0010) and of symptomatic weeks (45.3% reduction vs placebo; 89.6 vs 170.3 total weeks; P=.0273), the latter corresponding to an approximately 5.6-day reduction in symptom duration per symptomatic participant. Six placebo-treated participants had a COVID-19–related hospitalization or ER visit versus none for those receiving REGEN-COV. The proportion of participants receiving placebo who had ≥1 treatment-emergent adverse events was 48.1% compared with 33.5% for those receiving REGEN-COV, including events related (39.7% vs 25.8%, respectively) or not related (16.0% vs 11.0%, respectively) to COVID-19. Conclusions and Relevance: Subcutaneous REGEN-COV 1200mg prevented progression from asymptomatic SARS-CoV-2 infection to COVID-19, reduced the duration of high viral load and symptoms, and was well tolerated.
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🖺 Full Text HTML: <a href="https://www.medrxiv.org/content/10.1101/2021.06.14.21258569v2" target="_blank">Subcutaneous REGEN-COV Antibody Combination in Early Asymptomatic SARS-CoV-2 Infection: A Randomized Clinical Trial</a>
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<li><strong>First wave of the COVID-19 pandemic in Africa’s island nations: A descriptive study of the variation in the disease burden</strong> -
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Motivated by the idea that island nations might respond differently to non-island countries in handling pandemic situations, we aimed to study the first wave of COVID-19, along with the potential reasons behind the variation in disease burden, across the six African island nations: Cabo Verde, Comoros, Madagascar, Mauritius, São Tomé e Príncipe, and Seychelles. We analysed the publicly available COVID-19 data on confirmed cases and deaths from the beginning of the pandemic through 29 November 2020, to give an overview of the course of the pandemic in these nations. To understand the variation in disease burden across nations, we first explored their economic statuses, healthcare expenditures and facilities, ranging from the numbers of hospital staff to the PCR tests performed, and the main health risk factors. We further examined the age and sex distributions and densities of the overall and urban populations, along with analyzing the main industries in these countries. We also reviewed the non-pharmaceutical response measures implemented nationally. By presenting a comprehensive picture of the healthcare, socioeconomic, and demographic situation and describing the control measures taken by the governments, we aimed to evaluate the possible determinants of the variation in COVID-19 disease burden across the islands.
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🖺 Full Text HTML: <a href="https://osf.io/xmqac/" target="_blank">First wave of the COVID-19 pandemic in Africa’s island nations: A descriptive study of the variation in the disease burden</a>
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<li><strong>Australian Information Commission v Facebook Inc - Substituting the Hague Service Convention during the Pandemic</strong> -
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Recently, in Australian Information Commission v Facebook Inc ([2020] FCA 531), the Federal Court of Australia (‘FCA’) addresses substituted service and the Hague Service Convention in the contexts of the COVID-19 pandemic. This article seeks to discuss this important case in relation to whether defendants located outside of Australia in a Hague Convention state can be served by substituted service instead of following the Convention.
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🖺 Full Text HTML: <a href="https://osf.io/preprints/socarxiv/27qbe/" target="_blank">Australian Information Commission v Facebook Inc - Substituting the Hague Service Convention during the Pandemic</a>
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<li><strong>Forecasts of weekly incident and cumulative COVID-19 mortality in the United States: A comparison of combining methods</strong> -
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<b>Background</b> Forecasting models have played a pivotal role in health policy decision making during the coronavirus disease-2019 (COVID-19) pandemic. A combined forecast from multiple models will be typically more accurate than an individual forecast, but there are few examples of studies of combined forecasts of COVID-19 data, focusing mainly on simple mean and median ensembles and involving short forecast evaluation periods. We aimed to investigate the accuracy of different ways of combining probabilistic forecasts of weekly COVID-19 mortality data, including two weighted methods that we developed previously, on an extended dataset and new dataset, and evaluate over a period of 52 weeks. <b>Methods</b> We considered 95% interval and point forecasts of weekly incident and cumulative COVID-19 mortalities between 16 May 2020 and 8 May 2021 in multiple locations in the United States. We compared the accuracy of simple and more complex combining methods, as well as individual models. <b>Results</b> The average of the forecasts from the individual models was consistently more accurate than the average performance of these models (the mean combination), which provides a fundamental motivation for combining. Weighted combining performed well for both incident and cumulative mortalities, and for both interval and point forecasting. Our inverse score with tuning method was the most accurate overall. The median combination was a leading method in the last quarter for both mortalities, and it was consistently more accurate than the mean combination for point forecasting. For interval forecasts of cumulative mortality, the mean performed better than the median. The best performance of the leading individual model was in point forecasting. <b>Conclusions</b> Combining forecasts can improve the contribution of probabilistic forecasting to health policy decision making during epidemics, and, when there are sufficient historical data on forecast accuracy, weighted combining provides the most accurate method.
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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/10.1101/2021.07.11.21260318v3" target="_blank">Forecasts of weekly incident and cumulative COVID-19 mortality in the United States: A comparison of combining methods</a>
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</div></li>
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<h1 data-aos="fade-right" id="from-clinical-trials">From Clinical Trials</h1>
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<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Finding Treatments for COVID-19: A Trial of Antiviral Pharmacodynamics in Early Symptomatic COVID-19 (PLATCOV)</strong> - <b>Condition</b>: COVID-19<br/><b>Interventions</b>: Drug: Favipiravir; Drug: Monoclonal antibodies; Drug: Ivermectin; Other: No treatment; Drug: Remdesivir<br/><b>Sponsor</b>: University of Oxford<br/><b>Not yet recruiting</b></p></li>
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<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 Immunogenicity Study of AdCLD-CoV19-1: A COVID-19 Preventive Vaccine in Healthy Volunteers</strong> - <b>Condition</b>: Covid19<br/><b>Intervention</b>: Biological: AdCLD-CoV19-1<br/><b>Sponsor</b>: <br/>
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Cellid Co., Ltd.<br/><b>Recruiting</b></p></li>
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<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>A Post-Exposure Prophylaxis Study of PF-07321332/Ritonavir in Adult Household Contacts of an Individual With Symptomatic COVID-19</strong> - <b>Condition</b>: COVID-19<br/><b>Interventions</b>: Drug: PF-07321332; Drug: Placebo for PF-07321332; Drug: Placebo for Ritonavir; Drug: Ritonavir<br/><b>Sponsor</b>: Pfizer<br/><b>Not yet recruiting</b></p></li>
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<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Factors Influencing the COVID-19 Vaccine Immune Response According to Age and Presence or Not of a Past History of COVID-19</strong> - <b>Condition</b>: Covid19<br/><b>Interventions</b>: Biological: COVID-19 vaccine Pfizer (2 doses); Biological: COVID-19 vaccine Pfizer (1 dose); Biological: COVID-19 mRNA Vaccine Moderna (2 doses); Biological: COVID-19 mRNA Vaccine Moderna (1 dose)<br/><b>Sponsors</b>: Centre Hospitalier Universitaire de Saint Etienne; Sanofi Pasteur, a Sanofi Company; Bioaster<br/><b>Not yet recruiting</b></p></li>
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<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 Morbidity in Healthcare Workers and Vitamin D Supplementation</strong> - <b>Condition</b>: COVID-19 Respiratory Infection<br/><b>Intervention</b>: Drug: Vitamin D<br/><b>Sponsor</b>: Federal State Budgetary Institution, V. A. Almazov Federal North-West Medical Research Centre, of the Ministry of Health<br/><b>Completed</b></p></li>
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<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>TThe Safety and Efficacy of SCTV01C in Population Aged ≥18 Years Previously Vaccinated With Inactivated COVID-19 Vaccine.Healthy Population Aged ≥18 Years Previously Vaccinated With Inactivated COVID-19 Vaccine.</strong> - <b>Conditions</b>: COVID-19; SARS-CoV-2 Infection<br/><b>Interventions</b>: Biological: SCTV01C; Other: Placebo<br/><b>Sponsor</b>: Sinocelltech Ltd.<br/><b>Not yet recruiting</b></p></li>
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<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>The Safety and Efficacy of SCTV01C in Population Aged ≥18 Years Previously Vaccinated With Inactivated COVID-19 Vaccine.Healthy Population Aged ≥18 Years Previously Vaccinated With Adenovirus Vectored or mRNA COVID-19 Vaccine.</strong> - <b>Conditions</b>: COVID-19; SARS-CoV-2 Infection<br/><b>Interventions</b>: Biological: SCTV01C; Other: Placebo<br/><b>Sponsor</b>: Sinocelltech Ltd.<br/><b>Not yet recruiting</b></p></li>
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<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Heterologous Prime-boost Immunization With an Aerosolised Adenovirus Type-5 Vector-based COVID-19 Vaccine (Ad5-nCoV) After Priming With an Inactivated SARS-CoV-2 Vaccine</strong> - <b>Condition</b>: COVID-19<br/><b>Interventions</b>: Biological: inactive SARS-CoV-2 vaccine (Vero cell); Biological: Low dose aerosolized Ad5-nCoV; Biological: High dose aerosolized Ad5-nCoV<br/><b>Sponsor</b>: Jiangsu Province Centers for Disease Control and Prevention<br/><b>Recruiting</b></p></li>
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<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Text Message Nudges for COVID-19 Vaccination</strong> - <b>Condition</b>: Covid19<br/><b>Intervention</b>: Behavioral: Text message<br/><b>Sponsor</b>: <br/>
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Ascension South East Michigan<br/><b>Not yet recruiting</b></p></li>
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<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>A Pilot Study of a PhysiOthErapy-based Tailored Intervention for Long Covid</strong> - <b>Condition</b>: COVID-19<br/><b>Intervention</b>: Behavioral: Physiotherapy<br/><b>Sponsors</b>: <br/>
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University of Calgary; Alberta Health Services<br/><b>Not yet recruiting</b></p></li>
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<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Combined Antihistaminics Therapy in COVID 19 Patients</strong> - <b>Condition</b>: Covid19<br/><b>Interventions</b>: Drug: Loratadine; Drug: Famotidine<br/><b>Sponsors</b>: Ain Shams University; Nasr City Insurance Hospital<br/><b>Not yet recruiting</b></p></li>
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<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Relate to the Virus That Causes COVID-19, Known as Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2)</strong> - <b>Condition</b>: Covid19<br/><b>Intervention</b>: Other: Rapid antigen testing kit<br/><b>Sponsors</b>: <br/>
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Mahidol University; Yuvabadhana foundation; Zero COVID Thailand<br/><b>Not yet recruiting</b></p></li>
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<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Prevention and Treatment of Patient Before, During, and After Covid-19 Infection</strong> - <b>Condition</b>: Covid19<br/><b>Intervention</b>: Drug: AntiCov-220<br/><b>Sponsor</b>: <br/>
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Nguyen Thi Trieu, MD<br/><b>Active, not recruiting</b></p></li>
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<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Quercetin in the Prevention of Covid-19 Infection</strong> - <b>Condition</b>: Covid19<br/><b>Interventions</b>: Dietary Supplement: Quercetin; Combination Product: Placebo<br/><b>Sponsor</b>: Azienda di Servizi alla Persona di Pavia<br/><b>Completed</b></p></li>
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<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Physical Activity and Smell Trainings to Help Individuals With Coronavirus Disease (COVID-19) Recover From Persistent Smell and Taste Impairments - A Pilot Study</strong> - <b>Condition</b>: Covid19<br/><b>Interventions</b>: Behavioral: Physical activity; Other: Smell training<br/><b>Sponsor</b>: Université de Montréal<br/><b>Not yet recruiting</b></p></li>
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</ul>
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<h1 data-aos="fade-right" id="from-pubmed">From PubMed</h1>
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<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Low-Valent Calix[4]arene Glycoconjugates Based on Hydroxamic Acid Bearing Linkers as Potent Inhibitors in a Model of Ebola Virus Cis-Infection and HCMV-gB-Recombinant Glycoprotein Interaction with MDDC Cells by Blocking DC-SIGN</strong> - In addition to a variety of viral-glycoprotein receptors (e.g., heparan sulfate, Niemann-Pick C1, etc.), dendritic cell- specific intercellular adhesion molecule-3-grabbing nonintegrin (DC-SIGN), from the C-type lectin receptor family, plays one of the most important pathogenic functions for a wide range of viruses (e.g., Ebola, human cytomegalovirus (HCMV), HIV-1, severe acute respiratory syndrome coronavirus 2, etc.) that invade host cells before replication; thus, its inhibition represents a…</p></li>
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<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Evaluation of the correlation between the Access SARS-CoV-2 IgM and IgG II antibody tests with the SARS-CoV-2 surrogate virus neutralization test</strong> - Fully automated immunoassays for detecting severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) antibodies that are strongly correlated with neutralization antibodies (nAbs) are clinically important because they enable assessment of humoral immunity after infection and vaccination. Access SARS-CoV-2 IgM and IgG II antibody tests are semi- quantitative, fully automated immunoassays that detect anti-receptor-binding domain (RBD) antibodies and might reflect nAb levels in coronavirus disease…</p></li>
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<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Should the world collaborate imminently to develop neglected live attenuated vaccines for COVID-19?</strong> - The rapid spread of the Delta variant suggests that SARS-CoV-2 will likely keep rampant for months or years and could claim millions of more lives. All known vaccines cannot well defeat SARS-CoV-2 except neglected live attenuated vaccines (LAVs), which could have much higher efficacy and much higher production efficiency than other vaccines. LAVs have well defeated more pathogenic viruses than other vaccines in the history, and most of the current human vaccines for viral diseases are safe LAVs….</p></li>
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<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Severe Acute Respiratory Syndrome Coronavirus 2: The Role of the Main Components of the Innate Immune System</strong> - At the end of December 2019, the COVID-19 pandemic began in Wuhan of China. COVID-19 affects different people with a wide spectrum of clinical manifestations, ranging from asymptomatic with recovery without hospitalization up to a severe acute respiratory syndrome (SARS). The innate and adaptive immunity appears responsible for the defense against the virus and recovery from the disease. The innate immune system, as the first line of defense, is essential for the detection of virus and…</p></li>
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<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Neutralization of SARS-CoV-2 pseudovirus using ACE2-engineered extracellular vesicles</strong> - The spread of coronavirus disease 2019 (COVID-19) throughout the world has resulted in stressful healthcare burdens and global health crises. Developing an effective measure to protect people from infection is an urgent need. The blockage of interaction between angiotensin-converting enzyme 2 (ACE2) and S protein is considered an essential target for anti- severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) drugs. A full-length ACE2 protein could be a potential drug to block early entry…</p></li>
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<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>The Role of Steroids in the Management of COVID-19 Infection</strong> - Steroids are anti-inflammatory drugs that have been utilized in a wide range of clinical illnesses, including rheumatologic, autoimmune, inflammatory, and numerous lung diseases. Because of the inhibition of the inflammatory cascade, corticosteroids are beneficial in many pulmonary disorders, including asthma, chronic obstructive pulmonary disease (COPD), laryngotracheobronchitis, interstitial lung diseases, severe pneumonia, and acute respiratory distress syndrome. We will report a case of a…</p></li>
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<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>N-Terminal Modification of Gly-His-tagged Proteins with Azidogluconolactone</strong> - Site-specific protein modifications are vital for biopharmaceutical drug development. Gluconoylation is a non-enzymatic, post-translational modification of N-terminal HisTags. We report high-yield, site-selective in vitro α-aminoacylation of peptides, glycoproteins, antibodies, and Virus-like particles (VLPs) with azidogluconolactone at pH 7.5 in 1 h. Conjugates slowly hydrolyse, but diol-masking with borate esters inhibits reversibility. In an example, we multimerise azidogluconoylated…</p></li>
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<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Influence of coronavirus disease 2019 on myopic progression in children treated with low-concentration atropine</strong> - CONCLUSIONS: The rates of myopic progression have increased substantially after the spread of COVID-19 with an increase in the home confinement of children. Therefore, it is necessary to control the environmental risk factors for myopia, even in children undergoing treatment for the inhibition of myopic progression.</p></li>
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<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>New Chalcone Derivatives as Effective Anti-SARS-CoV-2 Agents</strong> - CONCLUSIONS: Computational analyses identified eight compounds inhibiting each target, with binding affinity scores ranging from -4,370 to -2,748 kcal/mol along with their toxicological, ADME, and drug-like properties.</p></li>
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<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Efficacy of Combination Therapy With The JAK Inhibitor Baricitinib In The Treatment of COVID-19</strong> - CONCLUSIONS: These findings support the utility of immunosuppression via JAK inhibition in moderate to severe COVID-19 pneumonia.</p></li>
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<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Social network-based cohorting to reduce the spread of SARS-CoV-2 in secondary schools: A simulation study in classrooms of four European countries</strong> - BACKGROUND: Operating schools safely under pandemic conditions is a widespread policy goal. We analyse the effectiveness of classroom cohorting, i.e., the decomposition of classrooms into smaller isolated units, in inhibiting the spread of SARS-CoV-2 in European secondary schools and compare different cohorting strategies.</p></li>
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<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Telaprevir is a potential drug for repurposing against SARS-CoV-2: computational and in vitro studies</strong> - Drug repurposing is an important approach to the assignment of already approved drugs for new indications. This technique bypasses some steps in the traditional drug approval system, which saves time and lives in the case of pandemics. Direct acting antivirals (DAAs) have repeatedly repurposed from treating one virus to another. In this study, 16 FDA-approved hepatitis C virus (HCV) DAA drugs were studied to explore their activities against severe acute respiratory syndrome coronavirus 2…</p></li>
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<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Endocytosis of abiotic nanomaterials and nanobiovectors: Inhibition of membrane trafficking</strong> - Humans are exposed to nanoscopical nanobiovectors (e.g. coronavirus SARS-CoV-2) as well as abiotic metal/carbon-based nanomaterials that enter cells serendipitously or intentionally. Understanding the interactions of cell membranes with these abiotic and biotic nanostructures will facilitate scientists to design better functional nanomaterials for biomedical applications. Such knowledge will also provide important clues for the control of viral infections and the treatment of virus-induced…</p></li>
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<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Polymeric Materials as Potential Inhibitors Against SARS-CoV-2</strong> - Recently discovered SARS-CoV-2 caused a pandemic that triggered researchers worldwide to focus their research on all aspects of this new peril to humanity. However, in the absence of specific therapeutic intervention, some preventive strategies and supportive treatment minimize the viral transmission as studied by some factors such as basic reproduction number, case fatality rate, and incubation period in the epidemiology of viral diseases. This review briefly discusses coronaviruses’ life cycle…</p></li>
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<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Asunaprevir, a Potent Hepatitis C Virus Protease Inhibitor, Blocks SARS-CoV-2 Propagation</strong> - The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pandemic has become a global health concern. Various SARS-CoV-2 vaccines have been developed and are being used for vaccination worldwide. However, no therapeutic agents against coronavirus disease 2019 (COVID-19) have been developed so far; therefore, new therapeutic agents are urgently needed. In the present study, we evaluated several hepatitis C virus direct-acting antivirals as potential candidates for drug repurposing against…</p></li>
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</ul>
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<h1 data-aos="fade-right" id="from-patent-search">From Patent Search</h1>
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<ul>
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<li><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>MACHINE LEARNING TECHNIQUE TO ANALYSE THE CONDITION OF COVID-19 PATIENTS BASED ON THEIR SATURATION LEVELS</strong> - - <a href="https://patentscope.wipo.int/search/en/detail.jsf?docId=AU335054861">link</a></p></li>
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<li><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>A HERB BASED COMPOSITION ANTI VIRAL MEDICINE FOR TREATMENT OF SARS COV 2 AND A METHOD FOR TREATING A PERSON INFECTED BY THE SARS COV 2 VIRUS</strong> - A Herbal composition, viz., PONNU MARUNTHU essentially comprising of ALLUIUM CEPA extract. [concentrated to 30%] 75%, SAPINDUS MUKOROSSI - extract [Optimised] 10%, CITRUS X LIMON - extract in its natural form 05 TRACYSPERMUM AMMI (L) – extract 07%,ROSA HYBRIDA - extract 03%, PONNU MARUNTHU solution 50 ml, or as a capsulated PONNU MARUNTHU can be given to SARS cov2 positive Patients, three times a day that is ½ an hour before food; continued for 3 days to 5 days and further taking it for 2 days if need be there; It will completely cure a person. When the SARS cov2 test shows negative this medicine can be discontinued. This indigenous medicine and method for treating a person inflicted with SARS COV 2 viral infection is quite effective in achieving of much needed remedy for the patients and saving precious lives from the pangs of death and ensuring better health of people. - <a href="https://patentscope.wipo.int/search/en/detail.jsf?docId=IN334865051">link</a></p></li>
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<li><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Anti-Sars-Cov-2 Neutralizing Antibodies</strong> - - <a href="https://patentscope.wipo.int/search/en/detail.jsf?docId=AU333857732">link</a></p></li>
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<li><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Expression Vector for Anti-Sars-Cov-2 Neutralizing Antibodies</strong> - - <a href="https://patentscope.wipo.int/search/en/detail.jsf?docId=AU333857737">link</a></p></li>
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<li><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>DEVELOPMENT OF CNN SCHEME FOR COVID-19 DISEASE DETECTION USING CHEST RADIOGRAPH</strong> - - <a href="https://patentscope.wipo.int/search/en/detail.jsf?docId=AU333857177">link</a></p></li>
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<li><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>一种检测新型冠状病毒的引物探针组合及其应用</strong> - 本发明提供了一种检测新型冠状病毒的引物探针组合及其应用，所述检测新型冠状病毒的引物探针组合包括特异性扩增并检测2019‑nCoV的ORF1ab基因、核壳蛋白N基因和刺突蛋白S基因N501Y突变位点的特异性引物对和探针。本发明还提供了一种检测新型冠状病毒的试剂盒及其以非疾病诊断和/或治疗为目的的使用方法。本发明所述检测新型冠状病毒的引物探针组合具有良好的特异性与灵敏度，配合优化后的检测体系，可以对待测样本进行快速准确的检测，并可以对整个实验流程进行监控，降低假阳性以及假阴性检测结果的出现概率，具有重要的意义。 - <a href="https://patentscope.wipo.int/search/en/detail.jsf?docId=CN335430482">link</a></p></li>
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<li><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>SARS-COV-2 BINDING PROTEINS</strong> - - <a href="https://patentscope.wipo.int/search/en/detail.jsf?docId=AU333402004">link</a></p></li>
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<li><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>COVID-19胸部CT图像识别方法、装置及电子设备</strong> - 本申请涉及一种COVID‑19胸部CT图像识别方法、装置及电子设备。所述方法获取COVID‑19的胸部CT图像，并针对胸部CT图像的特点，构建新冠肺炎CT识别网络，对该网络进行训练得到COVID‑19胸部CT图像识别模型，并利用该模型对待测CT图像进行分类。采用空洞卷积、深度卷积以及点卷积算子，减少冗余参数；采用并行结构连接方式，实现多尺度特征融合、降低模型复杂度；采用下采样方式，使用最大模糊池化以减少锯齿效应，保持信号的平移不变性；采用通道混洗操作，减少参数量与计算量，提高分类准确率，引入坐标注意力机制，使空间坐标信息与通道信息被关注，抑制不重要的信息，以解决资源匹配问题。 - <a href="https://patentscope.wipo.int/search/en/detail.jsf?docId=CN335069870">link</a></p></li>
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<li><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>A PROCESS FOR PREPARING MONTELUKAST SODIUM FOR TREATING COVID 19 PATIENTS</strong> - - <a href="https://patentscope.wipo.int/search/en/detail.jsf?docId=AU333857132">link</a></p></li>
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<li><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>IDENTIFICATION OF ANTI-COVID 19 AGENT SOMNIFERINE AS INHIBITOR OF MPRO & ACE2-RBD INTERACTION</strong> - - <a href="https://patentscope.wipo.int/search/en/detail.jsf?docId=AU333857079">link</a></p></li>
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