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196 lines
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<title>19 December, 2022</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>COVID-19 Convalescent Plasma Outpatient Therapy to Prevent Outpatient Hospitalization: A Meta-analysis of Individual Participant Data From Five Randomized Trials</strong> -
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Background. Monoclonal antibody and antiviral treatments for COVID-19 disease remain largely unavailable worldwide, and existing monoclonal antibodies may be less active against circulating omicron variants. Although treatment with COVID-19 convalescent plasma (CCP) is promising, randomized clinical trials (RCTs) among outpatients have shown mixed results. Methods. We conducted an individual participant data meta-analysis from all outpatient CCP RCTs to assess the overall risk reduction for all-cause hospitalizations by day 28 in all participants who had transfusion initiated. Relevant trials were identified by searching MEDLINE, Embase, MedRxiv, WHO, Cochrane Library, and Web of Science from January 2020 to September 2022. Results. Five included studies from four countries enrolled and transfused 2,620 adult patients. Comorbidities were present in 1,795 (69%). The anti-Spike or virus neutralizing antibody titer range across all trials was broad. 160 (12.2%) of 1315 control patients were hospitalized, versus 111 (8.5%) of 1305 CCP-treated patients, yielding a 3.7% (95%CI: 1.3%-6.0%; p=.001) ARR and 30.1% RRR for all-cause hospitalization. The effect size was greatest in those with both early transfusion and high titer with a 7.6% ARR (95%CI: 4.0%-11.1%; p=.0001) accompanied by at 51.4% RRR. No significant reduction in hospitalization was seen with treatment > 5 days after symptom onset or in those receiving CCP with antibody titers below the median titer. Conclusions. Among outpatients with COVID-19, treatment with CCP reduced the rate of all-cause hospitalization. CCP may be most effective when given within 5 days of symptom onset and when antibody titer is higher.
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🖺 Full Text HTML: <a href="https://www.medrxiv.org/content/10.1101/2022.12.16.22283585v1" target="_blank">COVID-19 Convalescent Plasma Outpatient Therapy to Prevent Outpatient Hospitalization: A Meta-analysis of Individual Participant Data From Five Randomized Trials</a>
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</div></li>
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<li><strong>Integration of Hybrid Model Diabetes Self-Management Education and Support at Primary Health Care During COVID-19 Pandemic: Protocol Paper of DIAJAPRI Health Coaching Study</strong> -
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Introduction COVID -19 pandemic has threatened the optimal achievement on type-2 diabetes mellitus (T2DM) target in primary health care (PHC), due to our priority in COVID-19 management, limited access of patients to PHC and their lifestyle changes as the impact of social restrictions. Therefore, the empowerment of capability of patients on diabetes self-care is required through optimal education and support. The use of telehealth in T2DM management has benefits on improving outcomes of patients. We aim to assess the role of telehealth diabetes self-management education (DSME) versus hybrid (telehealth and face-to-face method) diabetes self-management education and support (DSMES) to improve T2DM outcomes in PHC during COVID-19 pandemic. Methods and analysis This study is an open label randomized-controlled trial that will be conducted in 10 PHCs in Jakarta, Indonesia, involving patients with T2DM. Subjects are classified into 2 groups: DSME group and DSMES group. Intervention will be given every 2 weeks. DSME group will receive 1 educational video every 2 weeks discussing topics about diabetes self-management, while DSMES group will receive 1 educational video and undergo 1 coaching session every 2 weeks. All interventions will be conducted by trained health workers of PHC, who are physicians, nurses, and nutritionists. Our primary outcome is the change of HbA1C level and our secondary outcomes are the changes of nutritional intake, physical activity, quality of life, anthropometric parameter, fasting blood glucose, lipid profile, inflammatory markers, and progression of diabetes complications at 3 and 6 months after intervention compare to the baseline. Ethics and dissemination This study protocol has been approved by the Health Research Ethics Committee University of Indonesia. Subjects agree to participate will be given written informed consent prior to data collection. Findings from this study will be published in peer-reviewed journals and presented at conferences. Trial Registration http://www.clinicalstrials.gov with identifier number NCT05090488.
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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/10.1101/2022.12.18.22283494v1" target="_blank">Integration of Hybrid Model Diabetes Self-Management Education and Support at Primary Health Care During COVID-19 Pandemic: Protocol Paper of DIAJAPRI Health Coaching Study</a>
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<li><strong>Changes in cancer prevention and management and patient needs during the COVID-19 pandemic: An umbrella review of systematic reviews</strong> -
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Introduction: The COVID-19 pandemic led to relocation and reconstruction of health care resources and systems, and to a decrease in healthcare utilization, and this may have affected the treatment, diagnosis, prognosis, and psychosocial well-being of cancer patients. Objective: To summarize and quantify the evidence on the impact of the COVID-19 pandemic on the full spectrum of cancer care. Methods: We performed an umbrella review to summarize and quantify the findings from systematic reviews on impact of the COVID-19 pandemic on cancer treatment modification, delays, and cancellations; delays or cancellations in screening and diagnosis; psychosocial well-being, financial distress, and use of telemedicine as well as on other aspects of cancer care. PubMed was searched for relevant systematic reviews with or without meta-analysis published before November 29th, 2022. Abstract, full text screening and data extraction were performed by two independent reviewers. AMSTAR-2 was used for critical appraisal of included systematic reviews. Results. 45 systematic reviews evaluating different aspects of cancer care were included in our analysis. Most reviews were based on observational studies judged to be at medium and high risk of bias. Only 2 of the included reviews had high or moderate scores based on AMSTAR-2. Findings suggest treatment modifications in cancer care during the pandemic versus the pre-pandemic period were based on low level of evidence. Different degrees of delays and cancellations in cancer treatment, screening and diagnosis were observed, with low-and-middle income countries and countries that implemented lockdowns being disproportionally affected. A shift from in-person appointments to telemedicine use was observed, but utility of telemedicine, challenges in implementation and cost-effectiveness in different areas of cancer care were little explored. Evidence was consistent in suggesting psychosocial well-being (e.g., depression, anxiety, and social activities) of cancer patients deteriorated, and cancer patients experienced financial distress, albeit results were in general not compared to pre-pandemic levels. Impact of cancer care disruption during the pandemic on cancer prognosis was little explored. Conclusion: Substantial but heterogenous impact of COVID-19 pandemic on cancer care has been observed. Evidence gaps exist on this topic, with mid- and long-term impact on cancer care being most uncertain.
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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/10.1101/2022.12.18.22283642v1" target="_blank">Changes in cancer prevention and management and patient needs during the COVID-19 pandemic: An umbrella review of systematic reviews</a>
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<li><strong>COVID-19 and socioeconomic context in Bangladesh: Discussion from a gendered point of view</strong> -
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The COVID-19 affected communities and the economy beyond public health. The epidemic is expected to increase global poverty and inequality, making it crucial to study its effects. Several international organisations determined that a “new recession” was underway due to the global pandemic’s destructive effects on the financial, social, and personal spheres. Despite their best efforts, many undeveloped nations are fighting the pandemic’s aftereffects. Bangladesh is like other nations. Global economic and social changes will lead to new difficulties in the near future. Thus, studying COVID’s effects from a variety of perspectives, including gender, is crucial and timely. This paper explores the aftermath of the epidemic, focusing on the plight of women workers. In doing so, it sheds light on a particularly marginalised group, including maids and housekeepers, who have been denied benefits and recognition for their job.
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🖺 Full Text HTML: <a href="https://osf.io/puxk2/" target="_blank">COVID-19 and socioeconomic context in Bangladesh: Discussion from a gendered point of view</a>
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<li><strong>The effect of COVID-19 lockdowns on fertility in the Democratic Republic of the Congo</strong> -
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Most countries implemented public health measures, including lockdowns, during the COVID-19 pandemic. It has been speculated that the pandemic will affect fertility, but the direction, magnitude, and mechanisms of these effects are not well understood. Using data from the national health management information system and an augmented synthetic control methodology, we examined the impact of a lockdown of Kinshasa in April 2020 on the subsequent fertility of women, which we proxy by the number of births in health facilities months after the policy was implemented. Seven months after the lockdown, we see a large increase in births in Kinshasa, as compared to control areas, which at its peak represents an additional 5000 monthly births, or a 45% increase relative to baseline. We also observe increases in complimentary maternal health services but not in other health services. Increased births were observed among women both older and younger than 20. Lockdown policies have likely affected fertility and future pandemic preparedness plans should anticipate the effects find strategies to mitigate any negative unintended effects.
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🖺 Full Text HTML: <a href="https://www.medrxiv.org/content/10.1101/2022.12.16.22283557v1" target="_blank">The effect of COVID-19 lockdowns on fertility in the Democratic Republic of the Congo</a>
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<li><strong>Understanding the impact of mobility on COVID-19 spread: a hybrid gravity-metapopulation model of COVID-19</strong> -
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The outbreak of the severe acute respiratory syndrome coronavirus 2 started in Wuhan, China, towards the end of 2019 and spread worldwide. The rapid spread of the disease can be attributed to many factors including its high infectiousness and the high rate of human mobility around the world. Although travel/movement restrictions and other non-pharmaceutical interventions aimed at controlling the disease spread were put in place during the early stages of the pandemic, these interventions did not stop COVID-19 spread. To better understand the impact of human mobility on the spread of COVID-19 between regions, we propose a hybrid gravity-metapopulation model of COVID-19. Our model explicitly incorporates time-dependent human mobility into the disease transmission rate, and has the potential to incorporate other factors that affect disease transmission such as facemasks, physical distancing, contact rates, etc. An important feature of this modeling framework is its ability to independently assess the contribution of each factor to disease transmission. Using a Bayesian hierarchical modeling framework, we calibrate our model to the weekly reported cases of COVID-19 in thirteen local health areas in metro Vancouver, British Columbia (BC), Canada, from July 2020 to January 2021. We consider two main scenarios in our model calibration: using a fixed distance matrix and time-dependent weekly mobility matrices. We found that the distance matrix provides a better fit to the data, whilst the mobility matrices have the ability to explain the variance in transmission between regions. This result shows that the mobility data provides more information in terms of disease transmission than the distances between the regions.
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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/10.1101/2022.12.16.22283600v1" target="_blank">Understanding the impact of mobility on COVID-19 spread: a hybrid gravity-metapopulation model of COVID-19</a>
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</div></li>
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<li><strong>Immunogenicity and reactogenicity of mRNA COVID-19 vaccine booster administered by intradermal or intramuscular route in Thai older adults</strong> -
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Introduction: Intradermal (ID) vaccination may alleviate COVID-19 vaccine shortages and vaccine hesitancy due to systemic reactogenicity among older adults. Objectives: To compare the immunogenicity and reactogenicity of fractional ID and standard intramuscular (IM) booster vaccination of mRNA-1273 and BNT162b2 vaccines in older adults. Methods: Participants aged ≥65 years who previously vaccinated with 2-dose ChAdOx1 were randomized to receive one of the four booster vaccinations: 0.1mL ID mRNA-1273, 0.5mL IM mRNA-1273, 0.1mL ID BNT162b2 and 0.3mL IM BNT162b2. Immunogenicity as measured by anti-receptor binding domain (anti-RBD) IgG against Wuhan, neutralising antibody (NAb) against Wuhan and Omicron BA.1, BA.2 and BA.4/5, and IFNγ-producing cells. Local and systemic adverse effects (AEs) were self-reported via an electronic diary card. Results: Of the 210 participants enrolled, 70.5% were female and median age was 77.5 years (interquartile range (IQR): 71.0-84.0). Following the booster dose, both ID vaccination induced 37% lower levels of anti-RBD IgG than IM vaccination of the same vaccine. NAb against ancestral and Omicron BA.1 strains was highest following IM mRNA-1273 (1,718 and 617), followed by ID mRNA-1273 (1,212 and 318), IM BNT162b2 (713 and 230), and ID BNT162b2 (587 and 148), respectively. Spike-specific IFNγ responses were similar or higher in the ID groups when compared with their respective IM groups. Vaccine delivery through ID route tended to have lower systemic AEs, although more local AEs reported in ID mRNA-1273 group. Conclusions: Fractional ID vaccination induced immunogenicity and reactogenicity comparable to IM and may be an alternative option for older people.
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🖺 Full Text HTML: <a href="https://www.medrxiv.org/content/10.1101/2022.12.16.22283601v1" target="_blank">Immunogenicity and reactogenicity of mRNA COVID-19 vaccine booster administered by intradermal or intramuscular route in Thai older adults</a>
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<li><strong>Impact of COVID-19 on access to healthcare by persons with disabilities</strong> -
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Background: The Sars-Cov-2 pandemic has ravaged societies at their very core and deepened pre-existing inequalities. Meanwhile, persons with disabilities (PwDs), the most oppressed group in Ghana that live in poor and deplorable conditions are most like to be negatively impacted by the Sars-Cov-2 crisis. Therefore, the aim of this study is to explore how the Sars-Cov-2 pandemic is influencing access to healthcare by PwDs in the Sekondi-Takoradi Metropolis (STM). Methods: We collected data from 17 participants, nine from the Ghana Blind Union (GBU), five from Ghana Society for the Physically Challenged (GSPC), and three from the Ghana National Association of the Deaf (GNAD). An interview guide containing 25 items was used to gather data from the participants and we employed Phenomenological Analysis (PA) approach in making sense of the data. Result: PWDs encounter many different barriers like; i) stigma and discrimination, ii) cost and availability of transport, iii) poor attitude of healthcare staff, iv) poor communication, v) hospital environment and equipment, vi) handwashing and sanitizing facilities, vii) unsuitable washrooms, viii) cost of healthcare, ix) registration and renewal of NHIS cards, and x) loss of income as they attempt to seek healthcare during this Covid-19 era in the STM. Conclusion: Covid-19 pandemic has widened the disproportionate and inequality gaps against PWDs in the STM when they attempt to seek healthcare. in the face of this, STM may lead Ghana to lag in achieving the Sustainable Development Goal (SDG) 3.8, which entreats nations to provide quality healthcare for all persons including PWDs. PWDs need education and empowerment to enable them demand for their rights when accessing healthcare. The findings highlight existing gaps in the implementation of the disability law by healthcare facilities in STM and, re-focus the attention of hospital managers in STM to the healthcare needs of PWDs in STM.
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🖺 Full Text HTML: <a href="https://www.medrxiv.org/content/10.1101/2022.12.15.22283495v1" target="_blank">Impact of COVID-19 on access to healthcare by persons with disabilities</a>
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<li><strong>Quantifying the rebound of influenza epidemics after relaxing nonpharmaceutical interventions during the coronavirus disease 2019 pandemic in China</strong> -
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Abstract The co-existence of coronavirus disease 2019 (COVID-19) and seasonal influenza epidemics has become a potential threat to human health, particularly in China in the oncoming season. However, with the relaxation of nonpharmaceutical interventions (NPIs) during the COVID-19 pandemic, the rebound extent of the influenza activities is still poorly understood. In this study, we constructed a susceptible-vaccinated-infectious-recovered-susceptible (SVIRS) model to simulate influenza transmission and calibrated it using influenza surveillance data from 2018 to 2022. We projected the influenza transmission over the next 3 years using the SVIRS model. We observed that, in epidemiological year 2021-2022, the reproduction numbers of influenza in southern and northern China were reduced by 38.6% and 30.2%, respectively, compared with those before the pandemic. The percentage of people susceptible to influenza virus increased by 138.6% and 57.3% in southern and northern China by October 1, 2022, respectively. After relaxing NPIs, the potential accumulation of susceptibility to influenza infection may lead to a large-scale and early influenza outbreak in the year 2022-2023, the scale of which may be affected by the intensity of the NPIs. And later relaxation of NPIs in the year 2023 would not lead to much larger rebound of influenza activities in the year 2023-2024. To control the influenza epidemic to the pre-pandemic level after relaxing NPIs, the influenza vaccination rates in southern and northern China should increase to 56.2% and 47.3%, respectively. Vaccination for influenza should be advocated to reduce the potential reemergence of the influenza epidemic in the next few years.
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🖺 Full Text HTML: <a href="https://www.medrxiv.org/content/10.1101/2022.12.18.22283627v1" target="_blank">Quantifying the rebound of influenza epidemics after relaxing nonpharmaceutical interventions during the coronavirus disease 2019 pandemic in China</a>
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<li><strong>Booster Vaccination with SARS-CoV-2 mRNA Vaccines and Myocarditis Risk in Adolescents and Young Adults: A Nordic Cohort Study of 8.9 Million Residents</strong> -
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Importance The SARS-CoV-2 mRNA vaccines are associated with an increased risk of myocarditis. This association appears to be strongest in male adolescents and younger males and after the second dose. Few studies have evaluated the association after booster doses. Objective To evaluate the risk of myocarditis following SARS-CoV-2 mRNA booster vaccination in 12-to-39-year-olds. Design A multinational cohort study using nationwide register data. Setting Denmark, Finland, Norway, and Sweden. Participants Cohorts comprising all 8.9 million individuals residing in each of the four countries, born 1982-2009, and alive at start of study on December 27, 2020, without a previous diagnosis of myocarditis or pericarditis or laboratory-confirmed SARS-CoV-2 infection. Exposures The 28-day acute risk periods following the second and third dose of BNT162b2 and mRNA-1273, respectively, in a homologous schedule defines the exposures of interest. Main Outcomes and Measures Cohort participants were followed until an inpatient diagnosis of myocarditis, loss to follow-up, or end of study (latest data availability in each country), whichever occurred first. In each of the four countries, Poisson regression was used to estimate adjusted incidence rate ratios (IRRs) of myocarditis, with associated 95% confidence intervals (CIs), according to vaccination status. Country-specific results were combined in meta-analyses. Results A total of 8.9 million residents were followed for 12,271,861 person-years. We identified 1533 cases of myocarditis. In 12-to-39-year-old males, the 28-day acute risk period following the third dose of BNT162b2 or mRNA-1273 was associated with an increased incidence rate of myocarditis compared to the post-acute risk period 28 days or more after a second homologous dose (IRR, 2.08 [95% CI, 1.31 to 3.33] and 8.89 [95% CI, 2.26 to 35.03], respectively). The corresponding incidence rates following the third dose of BNT162b2 and mRNA-1273 were 0.86 and 1.95, respectively, within 28 days of follow-up among 100,000 individuals. Conclusions and Relevance Our results suggest that a booster dose is associated with increased myocarditis risk in male adolescents and young male adults.
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🖺 Full Text HTML: <a href="https://www.medrxiv.org/content/10.1101/2022.12.16.22283603v1" target="_blank">Booster Vaccination with SARS-CoV-2 mRNA Vaccines and Myocarditis Risk in Adolescents and Young Adults: A Nordic Cohort Study of 8.9 Million Residents</a>
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<li><strong>Flattening the Curve is Imperative: When China Relaxes the Dynamic Zero COVID-19 Policy</strong> -
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Since December 7, 2022, China relaxed the strict dynamic zero COVID-19 policy. Here we quantitatively analyze its potential impacts on COVID-19 trend with the epidemiological model SUVQC using the population and parameter settings of Beijing as a case. Our results indicate that if non-pharmacological interventions are completely ceased, the ICU bed demand number will peak in 26 days at ~23.88 thousand, which is 18 times the total number of ICU beds in Beijing. COVID-19 Omicron will cause 31,817 deaths in Beijing in the first year. We urge that the flattening curve strategy is necessary to slow down the infection and avoid overwhelming the healthcare system.
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🖺 Full Text HTML: <a href="https://www.medrxiv.org/content/10.1101/2022.12.15.22283335v1" target="_blank">Flattening the Curve is Imperative: When China Relaxes the Dynamic Zero COVID-19 Policy</a>
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<li><strong>Higher dose corticosteroids in hospitalised COVID-19 patients with hypoxia but not requiring ventilatory support (RECOVERY): a randomised, controlled, open-label, platform trial</strong> -
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Background: Low-dose corticosteroids have been shown to reduce mortality for hypoxic COVID-19 patients requiring oxygen or ventilatory support (non-invasive mechanical ventilation, invasive mechanical ventilation or extra-corporeal membrane oxygenation). We evaluated the use of a higher dose of corticosteroids in this patient group. Methods: This randomised, controlled, open-label platform trial (Randomised Evaluation of COVID-19 Therapy [RECOVERY]) is assessing multiple possible treatments in patients hospitalised for COVID-19. Eligible and consenting adult patients with clinical evidence of hypoxia (i.e. receiving oxygen or with oxygen saturation <92% on room air) were randomly allocated (1:1) to either usual care with higher dose corticosteroids (dexamethasone 20 mg once daily for 5 days followed by 10 mg once daily for 5 days or until discharge if sooner) or usual standard of care alone (which includes dexamethasone 6 mg once daily for 10 days or until discharge if sooner). The primary outcome was 28-day mortality. On 11 May 2022, the independent Data Monitoring Committee recommended stopping recruitment of patients receiving no oxygen or simple oxygen only to this comparison due to safety concerns. We report the results for these participants only. Recruitment of patients receiving ventilatory support continues. The RECOVERY trial is registered with ISRCTN (50189673) and clinicaltrials.gov (NCT04381936). Findings: Between 25 May 2021 and 12 May 2022, 1272 COVID-19 patients with hypoxia and receiving no oxygen (1%) or simple oxygen only (99%) were randomly allocated to receive usual care plus higher dose corticosteroids versus usual care alone (of whom 87% received low dose corticosteroids during the follow-up period). Of those randomised, 745 (59%) were in Asia, 512 (40%) in the UK and 15 (1%) in Africa. 248 (19%) had diabetes mellitus. Overall, 121 (18%) of 659 patients allocated to higher dose corticosteroids versus 75 (12%) of 613 patients allocated to usual care died within 28 days (rate ratio [RR] 1.56; 95% CI 1.18-2.06; p=0.0020). There was also an excess of pneumonia reported to be due to non-COVID infection (10% vs. 6%; absolute difference 3.7%; 95% CI 0.7-6.6) and an increase in hyperglycaemia requiring increased insulin dose (22% vs. 14%; absolute difference 7.4%; 95% CI 3.2-11.5). Interpretation: In patients hospitalised for COVID-19 with clinical hypoxia but requiring either no oxygen or simple oxygen only, higher dose corticosteroids significantly increased the risk of death compared to usual care, which included low dose corticosteroids. The RECOVERY trial continues to assess the effects of higher dose corticosteroids in patients hospitalised with COVID-19 who require non-invasive ventilation, invasive mechanical ventilation or extra-corporeal membrane oxygenation.
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</p>
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🖺 Full Text HTML: <a href="https://www.medrxiv.org/content/10.1101/2022.12.16.22283578v1" target="_blank">Higher dose corticosteroids in hospitalised COVID-19 patients with hypoxia but not requiring ventilatory support (RECOVERY): a randomised, controlled, open-label, platform trial</a>
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</div></li>
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<li><strong>Sustained reductions in life-threatening invasive bacterial diseases during the first two years of the COVID-19 pandemic: analyses of prospective surveillance data from 30 countries participating in the IRIS Consortium</strong> -
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Background The Invasive Respiratory Infection Surveillance (IRIS) Consortium was established to assess the impact of the COVID-19 pandemic on invasive diseases caused by Streptococcus pneumoniae, Haemophilus influenzae, Neisseria meningitidis and Streptococcus agalactiae. Here we analyse the incidence and distribution of disease during the first two years of the pandemic. Methods Laboratories in 30 countries/territories representing five continents submitted case data from 2018-2021 to private projects within databases in PubMLST. The impact of COVID-19 containment measures on the overall number of cases was analysed, and changes in disease distributions by patient age and serotype/group were examined. Interrupted time series analyses quantified the impact of pandemic response measures and their relaxation on disease rates, and autoregressive integrated moving average models estimated effect sizes and forecasted counterfactual trends by hemisphere. Findings Overall, 116,841 cases were analysed: 76,481 (2018-2019, pre-pandemic) plus 40,360 (2020-2021, pandemic). During the pandemic there was a significant reduction in the risk of disease caused by S pneumoniae (risk ratio: 0.47; 95% confidence interval: 0.40-0.55), H influenzae (0.51; 0.40-0.66) and N meningitidis (0.26; 0.21-0.31), whereas no significant changes were observed for the non-respiratory-transmitted pathogen S agalactiae (1.02; 0.75-1.40). No major changes in the distribution of cases were observed when stratified by patient age or serotype/group. An estimated 36,289 (17,145-55,434) cases of invasive bacterial disease were averted during the first two years of the pandemic among IRIS participating countries/territories. Interpretation COVID-19 containment measures were associated with a sustained decrease in the incidence of invasive disease caused by S pneumoniae, H influenzae and N meningitidis during the first two years of the pandemic, but cases began to increase in some countries as pandemic restrictions were lifted.
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</p>
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🖺 Full Text HTML: <a href="https://www.medrxiv.org/content/10.1101/2022.12.16.22283251v1" target="_blank">Sustained reductions in life-threatening invasive bacterial diseases during the first two years of the COVID-19 pandemic: analyses of prospective surveillance data from 30 countries participating in the IRIS Consortium</a>
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<li><strong>Risk of Infection Due to Airborne Virus in Classroom Environments Lacking Mechanical Ventilation</strong> -
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The COVID-19 pandemic highlighted the role of indoor environments on disease transmission. Enclosed spaces where pathogen-laden aerosols accumulate was strongly linked to increased transmission events. Here we employ a surrogate non-pathogenic virus, the bacteriophage phi6, to interrogate aerosol transmission in classroom environments that do not have any natural or mechanical ventilation in order to determine how effectively aerosols facilitate new infections. We find that virus-laden aerosols establish new infections over all distances tested within minutes and that the time of exposure did not change transmission rate. We further find that humidity, but not temperature nor a UV-based disinfection device, significantly impacted transmission rates. Our data suggest that, even without mechanical ventilation, relative humidity remains a highly effective mitigation strategy while UV air treatment did not.
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🖺 Full Text HTML: <a href="https://www.biorxiv.org/content/10.1101/2022.12.15.520644v1" target="_blank">Risk of Infection Due to Airborne Virus in Classroom Environments Lacking Mechanical Ventilation</a>
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<li><strong>Cholesterol and ceramide facilitate SARS-CoV-2 Spike protein-mediated membrane fusion</strong> -
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SARS-CoV-2 entry into host cells is mediated by the Spike (S) protein of the viral envelope. The S protein is composed of two subunits: S1 that induces binding to the host cell via its interaction with the ACE2 receptor of the cell surface and S2 that triggers fusion between viral and cellular membranes. Fusion by S2 depends on its heptad repeat domains that bring membranes close together, and its fusion peptide (FP) that interacts with and perturb the membrane structure to trigger fusion. Recent studies suggest that cholesterol and ceramide lipids from the cell surface may facilitate SARS-CoV-2 entry into host cells, but their exact mode of action remains unknown. We have used a combination of in vitro liposome-liposome and in situ cell-cell fusion assays to study the lipid determinants of S-mediated membrane fusion. We found that cholesterol and ceramide both facilitated fusion, suggesting that targeting lipids could be effective against SARS-CoV-2. As proof of concept, we examined the effect of chlorpromazine (CPZ), an antipsychotic drug known to perturb membrane structure. We found that CPZ inhibited S-mediated membrane fusion and thus potentially SARS-CoV-2 entry.
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🖺 Full Text HTML: <a href="https://www.biorxiv.org/content/10.1101/2022.12.16.520599v1" target="_blank">Cholesterol and ceramide facilitate SARS-CoV-2 Spike protein-mediated membrane fusion</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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<ul>
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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 Study for Immunocompromised Patients for Pre Exposure Prophylaxis of COVID-19 With AZD5156.</strong> - <b>Condition</b>: COVID 19<br/><b>Interventions</b>: Biological: Placebo; Biological: AZD5156; Biological: AZD7442 (EVUSHELD™)<br/><b>Sponsor</b>: AstraZeneca<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 Huashi Baidu Formula Clinical Study</strong> - <b>Condition</b>: COVID-19<br/><b>Interventions</b>: Drug: Huashi Baidu Granule; Drug: Monapiravir<br/><b>Sponsors</b>: Xiyuan Hospital of China Academy of Chinese Medical Sciences; Beijing YouAn Hospital; Kossamak Hospital; Kamuzu University of Health Sciences<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>Shaping Care Home COVID-19 Testing Policy</strong> - <b>Condition</b>: COVID-19<br/><b>Intervention</b>: Diagnostic Test: Lateral Flow Device<br/><b>Sponsor</b>: University College, London<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>Baldachin: Ceiling HEPA-filtration to Prevent Nosocomial Transmission of COVID-19</strong> - <b>Condition</b>: COVID-19<br/><b>Intervention</b>: Device: Baldachin<br/><b>Sponsor</b>: University Hospital Inselspital, Berne<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>Asunercept for the Treatment of Patients With Moderate to Severe COVID-19 Disease</strong> - <b>Condition</b>: COVID-19<br/><b>Interventions</b>: Biological: Asunercept; Other: Placebo<br/><b>Sponsor</b>: Apogenix AG<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>Study in Adults to Assess the Safety and Efficacy of Inhaled IBIO123, for Post-exposure Prophylaxis of COVID-19</strong> - <b>Condition</b>: COVID-19<br/><b>Interventions</b>: Biological: IBIO123; Other: Placebo<br/><b>Sponsor</b>: Immune Biosolutions Inc<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 PhaseⅡ Study to Evaluate the Safety & Immunogenicity of SARS-CoV-2 Alpha/Beta/Delta/Omicron Variants COVID-19 Vaccine</strong> - <b>Condition</b>: COVID-19 Pandemic<br/><b>Interventions</b>: Biological: SCTV01E; Biological: Placebo (normal saline)<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 Efficacy of Azvudine and Paxlovid in High-risk Patients With COVID-19: A Prospective Randomized Controlled Trial</strong> - <b>Condition</b>: SARS-CoV-2 Infection<br/><b>Interventions</b>: Drug: Azvudine; Drug: Paxlovid group<br/><b>Sponsors</b>: Southeast University, China; Hohhot First Hospital, Hohhot, Inner Mongolia, China<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>Effectiveness of Supportive Psychotherapy Through Internet-Based Teleconsultation on Psychological and Somatic Symptoms, Neutrophil-Lymphocyte Ratio, and Heart Rate Variability in Post Covid-19 Syndrome Patients</strong> - <b>Condition</b>: Post-COVID-19 Syndrome<br/><b>Intervention</b>: Behavioral: Supportive Psychotherapy<br/><b>Sponsor</b>: Indonesia University<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>Graphene Photothermal Adjuvant Therapy for Mild Corona Virus Disease 2019: A Prospective Randomized Controlled Trial</strong> - <b>Condition</b>: COVID-19<br/><b>Intervention</b>: Device: Graphene spectrum light wave therapy room<br/><b>Sponsors</b>: Southeast University, China; Hohhot First Hospital<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>Post-COVID-19 Chronic Fatigue Syndrome</strong> - <b>Conditions</b>: Post-COVID-19 Syndrome; Post-COVID Syndrome<br/><b>Intervention</b>: Drug: Synthetic Vitamin B1<br/><b>Sponsors</b>: ClinAmygate; As-Salam Center, Maadi, Cairo, Egypt<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 Study to Evaluate the Efficacy, Safety, and Immunogenicity of SARS-CoV-2 Variant (BA.4 /5) mRNA Vaccine</strong> - <b>Condition</b>: COVID-19<br/><b>Interventions</b>: Biological: ABO1020; Biological: Placebo<br/><b>Sponsor</b>: Suzhou Abogen Biosciences Co., Ltd.<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>Prednisolone and Vitamin B1/6/12 in Patients With Post-Covid-Syndrome</strong> - <b>Condition</b>: Post-COVID-19 Syndrome<br/><b>Interventions</b>: Drug: Prednisolone 20 mg/ 5 mg; Drug: Vitamin B compound (100mg B1, 50 mg B6, 500 µg B12); Drug: Placebo for Vitamin B compound; Drug: Placebo for Prednisolon<br/><b>Sponsors</b>: Wuerzburg University Hospital; University Hospital Tuebingen; University Hospital Schleswig-Holstein<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>Effects of an Immersive Virtual Reality Intervention</strong> - <b>Conditions</b>: Nurse’s Role; COVID-19 Pandemic; Mental Stress<br/><b>Interventions</b>: Behavioral: Mindfulness-based Stress Reduction by Therapeutic VR; Behavioral: Mindfulness-based Stress Reduction<br/><b>Sponsor</b>: Nanjing University of Traditional Chinese Medicine<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>Communicating Uncertainty - Protocol for Randomized Trial</strong> - <b>Condition</b>: COVID-19<br/><b>Intervention</b>: Other: Overall uncertainty language<br/><b>Sponsors</b>: Trustees of Dartmouth College; Norwegian Institute of Public Health<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>Inhibition of coronavirus HCoV-OC43 by targeting the eIF4F complex</strong> - No abstract</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>Nirmatrelvir plus ritonavir in COVID-19: a profile of its use</strong> - No abstract</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 highly sensitive bead-based flow cytometric competitive binding assay to detect SARS-CoV-2 neutralizing antibody activity</strong> - No abstract</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>SARS-CoV-2 induces “cytokine storm” hyperinflammatory responses in RA patients through pyroptosis</strong> - No abstract</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>Supramolecular filaments for concurrent ACE2 docking and enzymatic activity silencing enable coronavirus capture and infection prevention</strong> - No abstract</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>In-silico docking studies of selected phytochemicals against papain like protease of SARS-Cov-2</strong> - No abstract</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>Predicting <em>In Vitro</em> and <em>In Vivo</em> Anti-SARS-CoV-2 Activities of Antivirals by Intracellular Bioavailability and Biochemical Activity</strong> - No abstract</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>Increased cannabis use in pregnant women during COVID-19 pandemic</strong> - No abstract</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>Characterization and protein engineering of glycosyltransferases for the biosynthesis of diverse hepatoprotective cycloartane-type saponins in Astragalus membranaceus</strong> - No abstract</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>Analogous comparison unravels heightened antiviral defense and boosted viral infection upon immunosuppression in bat organoids</strong> - No abstract</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>Non-anticoagulant heparin derivatives for COVID-19 treatment</strong> - No abstract</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>Heme Oxygenase-1/High Mobility Group Box 1 Pathway May Have a Possible Role in COVID-19 ARDS (Acute Respiratory Distress Syndrome): A Pilot Histological Study</strong> - No abstract</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>Neuraminidase is a host-directed approach to regulate neutrophil responses in sepsis and COVID-19</strong> - No abstract</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 conserved L1089 in the S2 subunit of avian infectious bronchitis virus determines viral kidney tropism by disrupting virus-cell fusion</strong> - No abstract</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 mechanism and significance of the conversion of xanthine dehydrogenase to xanthine oxidase in mammalian secretory gland cells</strong> - No abstract</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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