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205 lines
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<meta content="width=device-width, initial-scale=1.0, user-scalable=yes" name="viewport"/>
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<title>06 November, 2021</title>
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<title>Covid-19 Sentry</title><meta content="width=device-width, initial-scale=1.0" name="viewport"/><link href="styles/simple.css" rel="stylesheet"/><link href="../styles/simple.css" rel="stylesheet"/><link href="https://unpkg.com/aos@2.3.1/dist/aos.css" rel="stylesheet"/><script src="https://unpkg.com/aos@2.3.1/dist/aos.js"></script></head>
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<h1 data-aos="fade-down" id="covid-19-sentry">Covid-19 Sentry</h1>
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<h1 data-aos="fade-right" data-aos-anchor-placement="top-bottom" id="contents">Contents</h1>
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<ul>
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<li><a href="#from-preprints">From Preprints</a></li>
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<li><a href="#from-clinical-trials">From Clinical Trials</a></li>
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<li><a href="#from-pubmed">From PubMed</a></li>
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<li><a href="#from-patent-search">From Patent Search</a></li>
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<h1 data-aos="fade-right" id="from-preprints">From Preprints</h1>
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<li><strong>Efficacy and safety of SOBERANA 02, a COVID-19 conjugate vaccine in heterologous three-dose combination</strong> -
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Background: SOBERANA 02 is a COVID19 conjugate vaccine (recombinant RBD conjugated to tetanus toxoid). Phase 1 and 2 clinical trials demonstrated its high immunogenicity, promoting neutralizing IgG and specific Tcell response. A third dose, of SOBERANA Plus (RBDdimer), further increased the specific anti RBD neutralizing antibodies. Methods: In a randomized, double-blind, placebo controlled, phase 3 trial (https://rpcec.sld.cu/trials/RPCEC00000354-En) we randomly assigned 44 031 participants, aged 19 to 80 years to three groups to receive a) two doses, SOBERANA 02, or b) two doses, SOBERANA 02 and a third dose, SOBERANA Plus, or c) placebo. Study endpoints are vaccine efficacy (VE) evaluated through confirmed symptomatic COVID-19 and safety. During the trial, the SARS CoV-2 isolates in Havana were 74.0 BETA;, shifting gradually to 100% DELTA; . Results: Two doses of SOBERANA 02 protected against symptomatic COVID-19: 43 cases in the two-dose group (14 371) vs. 155 in the placebo group (14 403), VE 71.0%, adjusted (CI 95%, 58.9 to 79.1). The heterologous three-dose combination increased the protection: 15 cases in the vaccine groups (13 833) vs. 155 in the placebo group (14 303), VE 92.4%, adjusted (CI 95%, 86.9 to 95.6%). For the two-dose schedule, VE against severe COVID-19 was 63.0% and for death, 59.0%; for the heterologous three-dose schedule, VE was 100% in both cases. Conclusions: This is the first phase-3 study of a three-dose, heterologous COVID-19 vaccine. Two doses of SOBERANA 02 were safe and attained efficacy of 71.0% in the adult population 19-80 y/o; incorporating SOBERANA Plus increased efficacy from 71.0 % to 92.4%.
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🖺 Full Text HTML: <a href="https://www.medrxiv.org/content/10.1101/2021.10.31.21265703v2" target="_blank">Efficacy and safety of SOBERANA 02, a COVID-19 conjugate vaccine in heterologous three-dose combination</a>
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</div></li>
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<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Shedding of Infectious SARS-CoV-2 Despite Vaccination</strong> -
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The SARS-CoV-2 Delta variant is highly transmissible and contains mutations that confer partial immune escape. We compared RT-PCR cycle threshold (Ct) data from 699 test-positive anterior nasal swab specimens from fully vaccinated (n = 310) or unvaccinated (n=389) individuals. We observed low Ct values (<25) in 212 of 310 fully vaccinated (68%) and 246 of 389 (63%) unvaccinated individuals. Testing a subset of these low-Ct samples revealed infectious SARS- CoV-2 in 15 of 17 specimens (88%) from unvaccinated individuals and 37 of 39 (95%) from vaccinated people. To determine whether infectious virus titers differed in vaccinated and unvaccinated persons, we performed plaque assays on an additional set of 48 samples with Ct <25, finding no difference in infectious virus titer between groups.
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🖺 Full Text HTML: <a href="https://www.medrxiv.org/content/10.1101/2021.07.31.21261387v6" target="_blank">Shedding of Infectious SARS-CoV-2 Despite Vaccination</a>
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<li><strong>Scrutiny of human lung infection by SARS-CoV-2 and associated human immune responses in humanized mice</strong> -
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There is an urgent need for animal models of COVID-19 to study immunopathogenesis and test therapeutic intervenes. In this study we showed that NSG mice engrafted with human lung (HL) tissue (NSG-L) could be infected efficiently by SARS-CoV-2, and that live virus capable of infecting Vero cells was found in the HL grafts and multiple organs from infected NSG-L mice. RNA-seq examination identified a series of differentially expressed genes, which are enriched in viral defense responses, chemotaxis, interferon stimulation, and pulmonary fibrosis between HL grafts from infected and control NSG-L mice. Furthermore, when infecting humanized mice with human immune system (HIS) and autologous HL grafts (HISL mice), the mice had bodyweight loss and hemorrhage and immune cell infiltration in HL grafts, which were not observed in immunodeficient NSG-L mice, indicating the development of anti-viral immune responses in these mice. In support of this possibility, the infected HISL mice showed bodyweight recovery and lack of detectable live virus at the later time. These results demonstrate that NSG-L and HISL mice are susceptible to SARS-CoV-2 infection, offering a useful in vivo model for studying SARS-CoV-2 infection and the associated immune response and immunopathology, and testing anti-SARS-CoV-2 therapies.
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🖺 Full Text HTML: <a href="https://www.biorxiv.org/content/10.1101/2021.11.05.466755v1" target="_blank">Scrutiny of human lung infection by SARS-CoV-2 and associated human immune responses in humanized mice</a>
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<li><strong>SARS-CoV-2 infection in free-ranging white-tailed deer (Odocoileus virginianus)</strong> -
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Human-to-animal spillover of SARS-CoV-2 virus has occurred in a wide range of animals, but thus far, the establishment of a new natural animal reservoir has not been detected. Here, we detected SARS-CoV-2 virus using rRT-PCR in 129 out of 360 (35.8%) free-ranging white-tailed deer (Odocoileus virginianus) from northeast Ohio (USA) sampled between January-March 2021. Deer in 6 locations were infected with at least 3 lineages of SARS-CoV-2 (B.1.2, B.1.596, B.1.582). The B.1.2 viruses, dominant in Ohio at the time, spilled over multiple times into deer populations in different locations. Deer-to-deer transmission may have occurred in three locations. The establishment of a natural reservoir of SARS-CoV-2 in white-tailed deer could facilitate divergent evolutionary trajectories and future spillback to humans, further complicating long-term COVID-19 control strategies.
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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/10.1101/2021.11.04.467308v1" target="_blank">SARS-CoV-2 infection in free-ranging white-tailed deer (Odocoileus virginianus)</a>
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<li><strong>Optimising the quarantining and response sequence towards SARS-CoV-2 outbreaks on board cargo vessels</strong> -
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The Coronavirus Disease (COVID-19) pandemic has brought significant impact onto the maritime activities worldwide, including disruption to global trade and supply chains. The ability to predict the evolution and duration of a COVID-19 outbreak on cargo vessels would inform a more nuanced response to the event and provide a more precise return-to-trade date. A SEIQ(H)R (Susceptibility-Exposed-Infected-Quarantine-(Hospitalisation)-Removed/Recovered) model is developed and fit-tested to simulate the transmission dynamics of COVID-19 on board cargo vessels of up to 60 crew. Due to specific living and working circumstances on board cargo vessels, instead of utilising the reproduction number, we consider the crew members from the same country to quantify the transmission of the disease. The performance of the model is verified using case studies based on data collected during COVID-19 outbreaks on three cargo vessels in Western Australia during 2020. The convergence between simulation results and the data verifies the performance of the model. The simulations show that the model can forecast the time taken for the transmission dynamics on each vessel to reach their equilibriums, providing informed predictions on the evolution of the outbreak, including hospitalisation rates and duration. The ability to model the evolution of an outbreak, both in duration and severity, is essential to predict outcomes and to plan for the best response strategy. At the same time, if offers a higher degree of certainty regarding the return to trade, which in turn is of significant importance to multiple stakeholders.
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🖺 Full Text HTML: <a href="https://www.medrxiv.org/content/10.1101/2021.11.03.21265201v1" target="_blank">Optimising the quarantining and response sequence towards SARS-CoV-2 outbreaks on board cargo vessels</a>
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<li><strong>Evaluation of patients treated by telemedicine in the COVID-19 pandemic by a private clinic in Sao Paulo, Brazil: A non-randomized clinical trial preliminary study</strong> -
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Introduction: As a result of the coronavirus disease 2019 (COVID-19) pandemic the year 2020 brought major changes on the delivery of health care and face to face physician patient communication was significantly reduced and the practice of remote telehealth care using computer technology is assuming a standard of care particularly with COVID-19 patients with attempts to reduce viral spread. Objective: To describe the clinical practice experience using telemedicine towards COVID-19 and the respective clinical outcomes. Methods: We performed a pilot open-label non- randomized controlled clinical trial. The patients were divided into four groups according severity of symptoms: (1) asymptomatic (2) mild symptoms (3) moderate symptoms and (4) severe symptoms and were followed up for five days counted from the beginning of the symptoms. A drug intervention was performed in group 3 for which the protocol followed as suggested by the International Pulmonology Societys consensus for adults with moderate symptoms: first day (attack phase) hydroxychloroquine sulfate 400 mg 12/12h second to fifth day (maintenance phase) 200 mg (half pill) 12/12h. The medication was associated with azithromycin 500mg once a day for five days. For children with moderate symptoms were used: hydroxychloroquine sulfate 6.5 mg/kg/dose every 12 hours in the first day and 3.25 mg/kg/dose every 12 hours from day 2 to 5. The therapeutic response was telemonitored. Group 4 patients were directly oriented to seek hospital care. During the use of the drugs, the patients were telemonitored daily. Results: One hundred eighty-seven patients were seen with mean age of 37,6 years (about 15,6). The most frequent symptom was cough (57,6%) followed by malaise (60,3%) fever (41,1%) headache (56,0%) muscle pain (51,1%). Of all the patients that sought telemedicine service in our center 23% were asymptomatic despite contact with people with probable diagnostic of COVID-19 29,4% reported mild symptoms 43,9% moderate symptoms and 3,7% severe symptoms. It was possible to observe in patients treated their symptoms of COVID-19 (group 3) with hydroxychloroquine and azithromycin for five days presented statistically better improvement of the symptoms when compared to those that did not follow the protocol (p = 0.039). Three patients were hospitalized and discharged after recovery. Conclusions: Our study showed that patients with COVID-19 who had delivery of health care through telemedicine initiated in early stages of the disease presented satisfactory clinical response, reducing the need of face-to-face consultations and hospitalizations. Our results indicate that the use of telemedicine with diagnosis and drug treatment protocols is a safe and effective strategy to reduce overload of health services and the exposure of healthcare providers and the general population to infected patients in a pandemic situation.
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🖺 Full Text HTML: <a href="https://www.medrxiv.org/content/10.1101/2021.11.05.21265569v1" target="_blank">Evaluation of patients treated by telemedicine in the COVID-19 pandemic by a private clinic in Sao Paulo, Brazil: A non-randomized clinical trial preliminary study</a>
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<li><strong>Prolonged and extended impacts of SARS-CoV-2 on the olfactory neurocircuit</strong> -
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The impact of SARS-CoV-2 on the olfactory pathway was studied over several time points using Syrian golden hamsters. We found an incomplete recovery of the olfactory sensory neurons, prolonged activation of glial cells in the olfactory bulb, and a decrease in the density of dendritic spines within the hippocampus. These data may be useful for elucidating the mechanism underlying long-lasting olfactory dysfunction and cognitive impairment as a post-acute COVID-19 syndrome.
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🖺 Full Text HTML: <a href="https://www.biorxiv.org/content/10.1101/2021.11.04.467274v1" target="_blank">Prolonged and extended impacts of SARS-CoV-2 on the olfactory neurocircuit</a>
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<li><strong>Stenoparib, an inhibitor of cellular poly (ADP-ribose) polymerases (PARPs), blocks in vitro replication of SARS- CoV-2 variants</strong> -
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We recently published a preliminary assessment of the activity of a poly (ADP-ribose) polymerase (PARP) inhibitor, stenoparib, also known as 2X-121, which inhibits viral replication by affecting pathways of the host. Stenoparib is an inhibitor of mammalian poly (ADP-ribose) polymerases (PARPs). Here we show that stenoparib effectively inhibits additional SARS-CoV-2 variants, including an additional wild-type strain (Germany/BavPat1/2020), and the variants alpha (B.1.1.7), beta (B.1.351) and gamma (P.1) in vitro, with 50% effective concentration (EC50) estimates of 4.1 M, 8.5 M, 24.2 M and 13.6 M, respectively. A second study focusing on a combination of 10 M stenoparib and 0.5 {micro}M remdesivir resulted in over 90% inhibition of the alpha (B.1.1.7) variant, which is substantially greater than what was achieved with stenoparib or remdesivir alone at these concentrations.
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🖺 Full Text HTML: <a href="https://www.biorxiv.org/content/10.1101/2021.11.03.467186v1" target="_blank">Stenoparib, an inhibitor of cellular poly (ADP-ribose) polymerases (PARPs), blocks in vitro replication of SARS-CoV-2 variants</a>
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<li><strong>The oral protease inhibitor (PF-07321332) protects Syrian hamsters against infection with SARS-CoV-2 variants of concern</strong> -
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There is an urgent need for potent and selective antivirals against SARS-CoV-2. Pfizer developed PF-07321332 (PF-332), a potent inhibitor of the main viral protease (Mpro, 3CLpro) that can be dosed orally; the compound is in clinical development. We demonstrate that PF-332 exerts equipotent in vitro activity against the four SARS-CoV-2 variants of concerns (VoC) and can completely arrest replication of the alpha variant in primary human airway epithelial cells grown at the air-liquid interface. Treatment of Syrian hamsters with PF-332 (250 mg/kg, twice daily) completely protected the animals against intranasal infection with the beta (B.1.351) and delta (B.1.617.2) SARS-CoV-2 variants. Moreover, treatment of SARS-CoV-2 (B.1.617.2) infected animals with PF-332 completely prevented transmission to untreated co-housed sentinels. The trough drug concentration at this efficacious dose were above the in vitro efficacious concentrations.
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🖺 Full Text HTML: <a href="https://www.biorxiv.org/content/10.1101/2021.11.04.467077v1" target="_blank">The oral protease inhibitor (PF-07321332) protects Syrian hamsters against infection with SARS-CoV-2 variants of concern</a>
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<li><strong>A trimeric NTD and RBD SARS-CoV-2 subunit vaccine induced protective immunity in CAG-hACE2 transgenic mice and rhesus macaques</strong> -
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The coronavirus disease 2019 (COVID-19) pandemic caused by severe acute respiratory syndrome coronavirus 2 (SARS- CoV-2) has led to significant public health, economic and social problems. Development of effective vaccines is still a priority to contain the virus and end the global pandemic. In this study, we reported that ReCOV, a recombinant trimeric NTD and RBD two-component SARS-CoV-2 subunit vaccine adjuvanted with BFA03 (an AS03-like squalene adjuvant), induced high levels of neutralizing antibodies against SARS-CoV-2 and the circulating variants in mice, rabbits and rhesus macaques. Notably, two-dose immunizations of ReCOV provided complete protection against challenge with SARS-CoV-2 in hACE2 transgenic mice and rhesus macaques, without observable antibody-dependent enhancement of infection. These results support further clinical development of ReCOV and the vaccine is currently being evaluated in a phase I clinical trial in New Zealand (NCT04818801).
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🖺 Full Text HTML: <a href="https://www.biorxiv.org/content/10.1101/2021.11.03.467182v1" target="_blank">A trimeric NTD and RBD SARS-CoV-2 subunit vaccine induced protective immunity in CAG-hACE2 transgenic mice and rhesus macaques</a>
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<li><strong>Conceptual replication study of fifteen JDM effects: Insights from the Polish sample</strong> -
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We conducted pre-registered replications of 15 effects in the field of judgment and decision making (JDM). We aimed to test the generalizability of different classical and modern JDM effects, including, among others: less-is-better, anchoring, and framing to different languages, cultures, or current situations (COVID-19 pandemic). Replicated studies were selected and conducted by undergraduate psychology students enrolled in a decision-making course. Two hundred and two adult volunteers completed an online battery of replicated studies. With a classical significance criterion (p < .05), seven effects were successfully replicated (47%), five partially replicated (33%), and three did not replicate (20%). Even though research materials differed from the originals in several ways, the replication rate in our project is slightly above earlier reported findings in similar replication projects.
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🖺 Full Text HTML: <a href="https://psyarxiv.com/5fc6z/" target="_blank">Conceptual replication study of fifteen JDM effects: Insights from the Polish sample</a>
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<li><strong>Comparison of Antibody Levels in Response to SARS-CoV-2 Infection and Vaccination Type in a Midwestern Cohort</strong> -
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We present preliminary data in an ongoing observational study reporting SARS-CoV-2 spike protein reactive antibody levels from a convenience cohort of over 200 individuals in Kansas City. We observe stable antibody levels over a year in individuals who recovered from COVID19 infection caused by SARS-CoV-2. Our data revealed higher-than recovered levels from naïve individuals vaccinated with Pfizer or Moderna vaccines and similar-to recovered levels from Johnson & Johnson (J&J) recipients. For all vaccines, inoculation after recovery resulted in higher antibody levels than vaccination alone. Responses to Pfizer and Moderna vaccines decreased over time from high initial levels but at the time of publication remain higher than those for recovered or J&J recipients. Within our limited cohort we only see slight demographic trends including higher antibody levels in recovered female vs. male individuals. Booster doses and breakthrough infections both result in rapid increases in antibody levels.
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🖺 Full Text HTML: <a href="https://www.medrxiv.org/content/10.1101/2021.08.16.21262036v5" target="_blank">Comparison of Antibody Levels in Response to SARS-CoV-2 Infection and Vaccination Type in a Midwestern Cohort</a>
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<li><strong>Stochastic social behavior coupled to COVID-19 dynamics leads to waves, plateaus and an endemic state</strong> -
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It is well recognized that population heterogeneity plays an important role in the spread of epidemics. While individual variations in social activity are often assumed to be persistent, i.e., constant in time, here we discuss the consequences of dynamic heterogeneity. By integrating the stochastic dynamics of social activity into traditional epidemiological models, we demonstrate the emergence of a new long timescale governing the epidemic, in broad agreement with empirical data. Our Stochastic Social Activity model captures multiple features of real-life epidemics such as COVID-19, including prolonged plateaus and multiple waves, which are transiently suppressed due to the dynamic nature of social activity. The existence of a long timescale due to the interplay between epidemic and social dynamics provides a unifying picture of how a fast-paced epidemic typically will transition to an endemic state.
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🖺 Full Text HTML: <a href="https://www.medrxiv.org/content/10.1101/2021.01.28.21250701v4" target="_blank">Stochastic social behavior coupled to COVID-19 dynamics leads to waves, plateaus and an endemic state</a>
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<li><strong>The Acceleration Index as a Test-Controlled Reproduction Number: Application to COVID-19 in France</strong> -
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We show that the acceleration index, a novel yet simple indicator that measures acceleration of viral spread (Baunez et al., 2021), corrects the reproduction number for the time-varying amount of tests. Not doing so results in the reproduction number being a biased estimate of viral acceleration and we provide a formal decomposition of the resulting bias. When applied to French data for the COVID-19 pandemic (from May 13 to November 19, 2020), our decomposition shows that the reproduction number consistently underestimates the resurgence of the pandemic since the summer of 2020, compared to the acceleration index which accounts for the time-varying volume of tests. Because the acceleration index aggregates all the relevant information and captures in real time the sizable time variation featured by viral circulation, it is a sufficient statistic to track the pandemic9s propagation. As such it is a more accurate indicator to track the dynamics of an infectious disease outbreak in real time.
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🖺 Full Text HTML: <a href="https://www.medrxiv.org/content/10.1101/2020.12.01.20241570v3" target="_blank">The Acceleration Index as a Test-Controlled Reproduction Number: Application to COVID-19 in France</a>
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<li><strong>Protocol violations in López-Medina et al.: 38 switched ivermectin (IVM) and placebo doses, failure of blinding, widespread IVM sales OTC in Cali, and nearly identical AEs for the IVM and control groups</strong> -
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A randomized controlled trial for treatment of mild cases of COVID-19 conducted in Cali, Colombia reported no statistically significant differences in outcomes for its ivermectin (IVM) and placebo arms. A striking anomaly, however, was that certain adverse events (AEs) that are distinctive for the study’s high-dose IVM use occurred at nearly identical rates in its IVM and placebo arms. The backdrop for these indicators of IVM use in study controls was widespread sales of IVM for COVID-19 in the Cali area during the study period, with 1.6 IVM doses sold over the counter for each case of COVID-19. The study compounded these risks of contamination of the control arm with critical errors in blinding and segregation of IVM v. placebo doses. A labeling error substituted IVM for placebo doses of 38 patients. Also, 5% dextrose solution was used for several weeks as a placebo, easily distinguishable from bitter tasting IVM. Given widespread availability and sales of IVM in Cali, lapses in segregation and blinding of IVM and control doses, and IVM-characteristic AEs in controls, the integrity of the study’s control arm was violated. Some useful information can nevertheless be salvaged from outcomes of this study’s IVM treatment arm, which had 0 deaths and generally mild symptoms, with AEs typical for high-dose IVM (replicated in the control group) that were generally mild and transient.
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🖺 Full Text HTML: <a href="https://osf.io/u7ewz/" target="_blank">Protocol violations in López-Medina et al.: 38 switched ivermectin (IVM) and placebo doses, failure of blinding, widespread IVM sales OTC in Cali, and nearly identical AEs for the IVM and control groups</a>
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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>BREATHE: Virtual Self-management for Long COVID-19</strong> - <b>Condition</b>: COVID-19<br/><b>Intervention</b>: Other: BREATHE<br/><b>Sponsor</b>: <br/>
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University of Calgary<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 Study of Pharmacokinetics, Safety, Tolerability, and Efficacy of Intravenous Anti-Spike(s) SARS-CoV-2 Monoclonal Antibodies (Casirivimab+Imdevimab) for the Treatment of Pediatric Patients Hospitalized Due to COVID-19</strong> - <b>Condition</b>: COVID-19<br/><b>Intervention</b>: Drug: casirivimab+imdevimab<br/><b>Sponsor</b>: <br/>
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Regeneron Pharmaceuticals<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>JINZHEN for Treatment of Mild to Moderate COVID-19</strong> - <b>Condition</b>: COVID-19<br/><b>Interventions</b>: Drug: JINZHEN Granules for Oral Solution; Drug: Placebo<br/><b>Sponsor</b>: Lianyungang Kanion Group, Ltd.<br/><b>Not yet recruiting</b></p></li>
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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>Hypertonic Saline Nasal Irrigation and Gargling (HSNIG) for Suspected COVID-19 in Pakistan</strong> - <b>Condition</b>: COVID-19<br/><b>Intervention</b>: Other: Hypertonic Saline Nasal Irrigation and Gargles (HSNIG)<br/><b>Sponsors</b>: The Allergy and Asthma Institute, Pakistan; University of Edinburgh<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>Clinical Validation of Breath Analyser Tests for Diagnosis of COVID-19.</strong> - <b>Condition</b>: COVID-19<br/><b>Intervention</b>: Diagnostic Test: Breath Sample analysis<br/><b>Sponsor</b>: Tera Group<br/><b>Recruiting</b></p></li>
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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>Immunogenicity And Safety of COVID-19 Vaccine , Inactivated Co -Administration With EV71 Vaccine (Vero Cell)</strong> - <b>Condition</b>: COVID-19<br/><b>Intervention</b>: Biological: Experimental Group<br/><b>Sponsor</b>: <br/>
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Sinovac Biotech Co., 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>A Study to Evaluate Safety & Immunogenicity of SARS-CoV-2 DNA Vaccine Delivered Intramuscularly Followed by Electroporation for COVID-19</strong> - <b>Condition</b>: Covid19<br/><b>Interventions</b>: Biological: SARS-CoV-2 DNA Vaccine; Biological: Matching placebo<br/><b>Sponsors</b>: The University of Hong Kong; Immuno Cure 3 Limited<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>Phase 1 Trial of ChAd68 and Ad5 Adenovirus COVID-19 Vaccines Delivered by Aerosol</strong> - <b>Conditions</b>: COVID-19; SARS-CoV2 Infection<br/><b>Interventions</b>: Biological: Ad5-triCoV/Mac; Biological: ChAd-triCoV/Mac<br/><b>Sponsors</b>: McMaster University; Canadian Institutes of Health Research (CIHR)<br/><b>Not yet recruiting</b></p></li>
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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>Homeopathic Treatment of Post-acute COVID-19 Syndrome</strong> - <b>Condition</b>: Post-acute Covid-19 Syndrome<br/><b>Interventions</b>: Drug: Homeopathic Medication; Other: Placebo<br/><b>Sponsors</b>: Southwest College of Naturopathic Medicine; Samueli Institute for Information Biology<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>Effect of PBM on Functional Capacity and Fatigability in Post Covid-19 Elderly</strong> - <b>Condition</b>: Post Covid-19 Elderly<br/><b>Interventions</b>: Radiation: photobiomodulation; Other: placebo intervention by photobiomodulation device<br/><b>Sponsor</b>: Cairo University<br/><b>Recruiting</b></p></li>
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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 Interactive Voice Response for COVID-19 Vaccination Training in the Democratic Republic of the Congo</strong> - <b>Conditions</b>: COVID-19 Vaccine Knowledge; COVID-19 Vaccine Beliefs and Behaviors<br/><b>Interventions</b>: Behavioral: COVID-19 Vaccine IVR Training; Behavioral: Control Condition<br/><b>Sponsors</b>: <br/>
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Stanford University; Viamo<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>Recombinant SARS-CoV-2 Fusion Protein Vaccine (V-01) Booster Study</strong> - <b>Condition</b>: COVID-19 Pandemic<br/><b>Interventions</b>: Biological: Recombinant SARS-CoV-2 Fusion Protein Vaccine (V-01); Biological: Blank Preparation of Recombinant SARS-CoV-2 Fusion Protein Vaccine (V-01)<br/><b>Sponsor</b>: Livzon Pharmaceutical Group Inc.<br/><b>Not yet recruiting</b></p></li>
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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>Home-based Brain Stimulation Treatment for Post-acute Sequelae of COVID-19 (PASC)</strong> - <b>Condition</b>: Post-Acute Sequelae of COVID-19<br/><b>Interventions</b>: Device: Active tDCS; Device: Sham tDCS<br/><b>Sponsor</b>: Massachusetts General Hospital<br/><b>Not yet recruiting</b></p></li>
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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 Effect Of Music On Compliance Of Patients İn COVİD-19 Intensive Care Unit With CPAP Device</strong> - <b>Conditions</b>: COVID-19; COVID-19 Acute Respiratory Distress Syndrome<br/><b>Intervention</b>: Device: Listening to music with a bluetooth headset to patients receiving CPAP support<br/><b>Sponsors</b>: SÜMEYYE BİLGİLİ; Ataturk University<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>Ad26.COV2.S as a Heterologous Booster in Adults After Single- or Two-Dose of Inactivated COVID-19 Vaccine</strong> - <b>Condition</b>: SARS-CoV-2 Infection<br/><b>Interventions</b>: Biological: Full dose of Ad26.COV2.; Biological: Half dose of Ad26.COV2.<br/><b>Sponsors</b>: Mahidol University; National Vaccine Institute, Thailand; International Vaccine Institute; Janssen Pharmaceuticals<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>alpha-Ketoglutarate Inhibits Thrombosis and Inflammation by Prolyl Hydroxylase-2 Mediated Inactivation of Phospho- Akt</strong> - BACKGROUND: Phospho-Akt1 (pAkt1) undergoes prolyl hydroxylation at Pro125 and Pro313 by the prolyl hydroxylase-2 (PHD2) in a reaction decarboxylating α-ketoglutarate (αKG). We investigated whether the αKG supplementation could inhibit Akt- mediated activation of platelets and monocytes, in vitro as well as in vivo, by augmenting PHD2 activity.</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 Mpro structure-based modifications of ebselen derivatives for improved antiviral activity against SARS-CoV-2 virus</strong> - The main protease (Mpro or 3CLpro) of SARS-CoV-2 virus is a cysteine enzyme critical for viral replication and transcription, thus indicating a potential target for antiviral therapy. A recent repurposing effort has identified ebselen, a multifunctional drug candidate as an inhibitor of Mpro. Our docking of ebselen to the binding pocket of Mpro crystal structure suggests a noncovalent interaction for improvement of potency, antiviral activity and selectivity. To test this hypothesis, we designed…</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>De novo design of novel protease inhibitor candidates in the treatment of SARS-CoV-2 using deep learning, docking, and molecular dynamic simulations</strong> - The main protease of SARS-CoV-2 is a critical target for the design and development of antiviral drugs. 2.5 M compounds were used in this study to train an LSTM generative network via transfer learning in order to identify the four best candidates capable of inhibiting the main proteases in SARS-CoV-2. The network was fine-tuned over ten generations, with each generation resulting in higher binding affinity scores. The binding affinities and interactions between the selected candidates and the…</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>Molecular docking and simulation studies of synthetic protease inhibitors against COVID-19: a computational study</strong> - COVID-19 is the most recent threat to global health. Many people preferred treatment in case of infection instead of vaccination. The inhibition of viral replication is a good strategy for the treatment of COVID-19 infection. 3CLpro and PLpro are two important viral proteases responsible for proteolysis, infection, and replication of the virus. Therefore, targeting of these two enzymes is an attractive way to deal with COVID-19. The aim of this study was to screen some synthetic protease…</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>Harnessing stress granule formation by small molecules to inhibit the cellular replication of SARS-CoV-2</strong> - We identified small-molecule enhancers of cellular stress granules by observing molecular crowding of proteins and RNAs in a time-dependent manner. Hit molecules sensitized the IRF3-mediated antiviral mechanism in the presence of poly(I:C) and inhibited the replication of SARS-CoV-2 by inducing stress granule formation. Thus, modulating multimolecular crowding can be a promising strategy against SARS-CoV-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>Sensing of cytoplasmic chromatin by cGAS activates innate immune response in SARS-CoV-2 infection</strong> - The global coronavirus disease 2019 (COVID-19) pandemic is caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), a positive-sense RNA virus. How the host immune system senses and responds to SARS-CoV-2 infection remain largely unresolved. Here, we report that SARS-CoV-2 infection activates the innate immune response through the cytosolic DNA sensing cGAS-STING pathway. SARS-CoV-2 infection induces the cellular level of 2’3’-cGAMP associated with STING activation. cGAS…</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 non-ACE2 competing human single-domain antibody confers broad neutralization against SARS-CoV-2 and circulating variants</strong> - The current COVID-19 pandemic has heavily burdened the global public health system and may keep simmering for years. The frequent emergence of immune escape variants have spurred the search for prophylactic vaccines and therapeutic antibodies that confer broad protection against SARS-CoV-2 variants. Here we show that the bivalency of an affinity maturated fully human single-domain antibody (n3113.1-Fc) exhibits exquisite neutralizing potency against SARS-CoV-2 pseudovirus, and confers effective…</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>Auranofin: Past to Present, and repurposing</strong> - Auranofin (AF), a gold compound, has been used to treat rheumatoid arthritis (RA) for more than 40 years; however, its mechanism of action remains unknown. We revealed that AF inhibited the induction of proinflammatory proteins and their mRNAs by the inflammatory stimulants, cyclooxygenase-2 and inducible nitric oxide synthase, and their upstream regulator, NF-κB. AF also activated the proteins peroxyredoxin-1, Kelch-like ECH-associated protein 1, and NF-E2-related factor 2, and inhibited…</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>Methotrexate as a safe immunosuppressive agent during the COVID-19 pandemic</strong> - CONCLUSION: The present findings demonstrated that methotrexate does not predispose patients to severe COVID-19; on the contrary, patients taking methotrexate may experience a milder disease, possibly due to their reduced severe inflammatory reactions as a result of inhibited TNFα, lowered IL6, and increased T regulatory cells. According to these findings, methotrexate appears to be a suitable treatment option for patients who need immunosuppressive medications during the COVID-19 pandemic.</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>An airway organoid-based screen identifies a role for the HIF1alpha-glycolysis axis in SARS-CoV-2 infection</strong> - It is urgent to develop disease models to dissect mechanisms regulating severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. Here, we derive airway organoids from human pluripotent stem cells (hPSC-AOs). The hPSC-AOs, particularly ciliated-like cells, are permissive to SARS-CoV-2 infection. Using this platform, we perform a high content screen and identify GW6471, which blocks SARS-CoV-2 infection. GW6471 can also block infection of the B.1.351 SARS- CoV-2 variant. RNA…</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 tale on LianHuaQingWen: IL6R/IL6/IL6ST complex is a potential target for COVID-19 treatment</strong> - LianHuaQingWen (LHQW) improves clinical symptoms and alleviates the severity of COVID-19, but the mechanism is unclear. This study aimed to investigate the potential molecular targets and mechanisms of LHQW in treating COVID-19 using a network pharmacology-based approach and molecular docking analysis. The main active ingredients, therapeutic targets of LHQW, and the pathogenic targets of COVID-19 were screened using the TCMSP, UniProt, STRING, and GeneCards databases. According to the…</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>Potent Anti-SARS-CoV-2 Activity by the Natural Product Gallinamide A and Analogues via Inhibition of Cathepsin L</strong> - Cathepsin L is a key host cysteine protease utilized by coronaviruses for cell entry and is a promising drug target for novel antivirals against SARS-CoV-2. The marine natural product gallinamide A and several synthetic analogues were identified as potent inhibitors of cathepsin L with IC(50) values in the picomolar range. Lead molecules possessed selectivity over other cathepsins and alternative host proteases involved in viral entry. Gallinamide A directly interacted with cathepsin L in cells…</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>Dasabuvir Inhibits Human Norovirus Infection in Human Intestinal Enteroids</strong> - Human noroviruses (HuNoVs) are acute viral gastroenteritis pathogens that affect all age groups, yet no approved vaccines and drugs to treat HuNoV infection are available. In this study, we screened an antiviral compound library to identify compound(s) showing anti-HuNoV activity using a human intestinal enteroid (HIE) culture system in which HuNoVs are able to replicate reproducibly. Dasabuvir (DSB), which has been developed as an anti-hepatitis C virus agent, was found to inhibit HuNoV…</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>Microbial based natural compounds as potential inhibitors for SARS-CoV-2 Papain-like protease (PLpro): a molecular docking and dynamic simulation study</strong> - COVID-19 (Coronavirus disease of 2019) pandemic is one of the largest health threats the planet has faced in recent decades. Efforts are being continuously made to design a viable drug or a vaccine. Several natural and synthetic molecules are under study for their potency to inhibit viral replication. In order to emphasize the importance of microbial-based natural components in antiviral drug discovery, an attempt has been made through this study to find potential inhibitors for SARS-CoV-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>Rapid inactivation of SARS-CoV-2 with LED irradiation of visible spectrum wavelengths</strong> - Difficulty in controlling SARS-CoV-2 transmission made the ability to inactivate viruses in aerosols and fomites to be an important and attractive risk reduction measure. Evidence that light frequencies have the ability to inhibit microorganisms has already been reported by many studies which, however, focused on ultraviolet (UV) wavelengths, which are known to induce potential injury in humans. In the present study, the effect on suspensions of SARS-CoV-2 of a Light Emitting Diode (LED) device…</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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<li><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Anti-SARS-CoV-2 antibodies and uses thereof I</strong> - - <a href="https://patentscope.wipo.int/search/en/detail.jsf?docId=AU339290405">link</a></p></li>
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<li><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Anti-SARS-CoV-2 antibodies and uses thereof II</strong> - - <a href="https://patentscope.wipo.int/search/en/detail.jsf?docId=AU339290406">link</a></p></li>
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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>휴대용 자화 육각수물 발생기</strong> - 본인의 발명은, 사람의 신체에서 육각수물 생성에는 한계가 있으며, 동맥혈관, 정맥혈관 내부 혈액은 수분이 약 90% 이며, 건강한 성인이면, 육각수 물은 약 62% 이며, COVID-19 환자, 사고의 부상, 17만개의 질병, 질환으로 조직세포가 손상되면 자기 신체수복을 위해서 육각수 물을 평소보다 많이 흡수 하면서 동반 산소부족 상태가 되며, 육각수물 보충 없이 산소 호흡기를 사용하면 심각한 후유증이 발병 할 수 있다.</p></li>
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</ul>
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<p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom">육각수물 부족 상태를 해결하기 위해서, 객관적인 과학적으로 네오디뮴(원자번호 = 60) 3.000 가우스의 자기장을 이용하여서 육각수 물을 62% ~ 80% 이상, 상시 유지 시켜주는 제조 방법이며, 휴대용으로 항시 착용 가능하다. 결론은 COVID-19, 질병, 질환의 근본적인 원인은, 육각수물 부족 상태가 되면 동반 산소 부족 상태가 되면서, 염증 -> 통증 -> 극심한 통증 -> 석회화, 섬유화, 암 까지 발병 한다. - <a href="https://patentscope.wipo.int/search/en/detail.jsf?docId=KR338655754">link</a></p>
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<ul>
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<li><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>휴대용 자화 육각수물 발생기</strong> - 본인의 발명은, 사람의 신체에서 육각수 생성에는 한계가 있으며, 동맥혈관, 정맥혈관 내부 혈액은 수분이 90% 이며, 육각수물은 약 62% 이며, COVID-19, 사고 부상, 질병, 질환으로 조직세포가 손상되면 자기 신체수복을 위해서 육각수물을 평소보다 많이 흡수하면서 산소부족 상태가 되며, 육각수 보충 없이 산소호흡기를 사용하면 심각한 후유증이 발병 할 수 있다 육각수물 부족 상태를 해결하기 위해서, 객관적인 과학적으로 네오디뮴(원자번호 = 60) 3.000 가우스의 자기장을 이용하여서 육각수물을 62% ~ 80% 상시 유지 시켜주는 제조 방법이며, 휴대용으로 항시 착용 가능하다. 결론은 COVID-19, 질병, 질환의 근본적인 원인은, 육각수물 부족 상태가 되면 동반 산소 부족 상태가 되면서, 염증 -> 통증 -> 극심한 통증 -> 석회화, 섬유화, 암 까지 발병 한다. - <a href="https://patentscope.wipo.int/search/en/detail.jsf?docId=KR338650904">link</a></p></li>
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<li><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>用于检测新冠病毒的配对抗体及其应用</strong> - 本发明涉及一种用于检测新冠病毒的配对抗体及其应用，其包括第一检测抗体和第二检测抗体；第一检测抗体具有如SEQ ID NO:1~3所示的轻链互补决定区，以及如SEQ ID NO:4~6所示的重链互补决定区，第二检测抗体具有如SEQ ID NO:7~9所示的轻链互补决定区，以及如SEQ ID NO:10~12所示的重链互补决定区。本发明筛选得到具有上述互补决定区序列的配对抗体，其识别N蛋白的不同表位，且由于两种抗体识别的是N蛋白非核酸结合区域，不会受核酸负电荷干扰，对核酸抗原表现出了兼容性，具有较好的稳定性，同时上述配对抗体具有较高的亲和力，病毒N蛋白检测灵敏度高。 - <a href="https://patentscope.wipo.int/search/en/detail.jsf?docId=CN339127990">link</a></p></li>
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<li><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>抗KL-6双特异性抗体及基因、重组载体、药物、试剂盒</strong> - 本发明公开了抗KL‑6双特异性抗体或其变体、或其功能性片段，所述抗KL‑6双特异性抗体或其变体、或其功能性片段包括抗PTS域和抗SEA域，所述抗PTS域的重链可变区的CDR1、CDR2和CDR3分别具有SEQ ID NO.1~3所示的氨基酸序列。本发明还提供了基因、重组载体、药物、试剂盒。本发明的抗KL‑6双特异性抗体或其变体、或其功能性片段用于与KL‑6蛋白特异性结合，基因、重组载体用于抗KL‑6双特异性抗体的制备，药物用于治疗KL‑6蛋白引起的相关疾病，试剂盒用于KL‑6蛋白的定量检测。 - <a href="https://patentscope.wipo.int/search/en/detail.jsf?docId=CN338723529">link</a></p></li>
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<li><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>基于决策树模型与逻辑回归模型组合的感染筛查方法</strong> - 本发明公开了一种基于决策树模型与逻辑回归模型组合的感染筛查方法，其检测操作方便，可提高感染筛查准确性，该方法基于生命体征监护仪实现，生命体征监护仪与远程数据服务平台通信连接，远程数据服务平台依据临床数据进行感染筛查，该方法包括：通过生命体征监护仪检测获取用户临床数据，将临床数据随机划分为训练集、测试集，将训练集均分为两份：训练集A、训练集B，基于训练集A构建决策树模型，同时，对训练集A进行特征选择，将关键特征向量作为已构建的决策树模型的输入，获取新构造特征向量，基于组合特征向量，构造逻辑回归模型，基于决策树模型和逻辑回归模型组合，对测试集进行预测分类，获取分类结果。 - <a href="https://patentscope.wipo.int/search/en/detail.jsf?docId=CN339127711">link</a></p></li>
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<li><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>病毒中和抗体与非中和抗体联合检测方法、检测卡及应用</strong> - 一种病毒中和抗体与非中和抗体联合检测方法、检测卡及其应用，通过病毒受体结合蛋白夹心法原理检测中和抗体，其为通过提前设置病毒受体结合蛋白和能阻断中和抗体与其结合的作为配体的蛋白所形成的复合物，将靶向受体蛋白的非中和抗体提前捕获，保证后续通过夹心法检测中和抗体的特异性。解决了现有技术中中和抗体检测灵敏度低、特异性差以及不能区分中和抗体与非中和抗体的问题，提供了一种简便、快速、灵敏度高、特异性高的病毒中和抗体与非中和抗体联合检测方法、检测卡及其应用。 - <a href="https://patentscope.wipo.int/search/en/detail.jsf?docId=CN338613501">link</a></p></li>
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<li><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>扩增△500-532的SARS-CoV-2 Nsp1基因的引物对及其检测方法</strong> - 本发明公开了一种扩增Δ500‑532的SARS‑CoV‑2 Nsp1基因的引物对及其检测方法。引物对的具体序列如SEQ ID NO.1和SEQ ID NO.2所示，其检测方法为：采用引物对对SARS‑CoV‑2 Nsp1基因进行PCR，对PCR产物进行变性退火后，加入T7EI内切酶孵育，再进行PCR扩增，并判断是否存在Δ500‑532的SARS‑CoV‑2 Nsp1基因。本发明可简便快捷的区分出SARS‑CoV‑2 Nsp1基因突变型和野生型。 - <a href="https://patentscope.wipo.int/search/en/detail.jsf?docId=CN339334235">link</a></p></li>
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<li><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>多肽及其在新型冠状病毒检测中的应用</strong> - 本发明涉及生物医学领域，具体而言，涉及一种多肽及其在新型冠状病毒检测中的应用。所述多肽包括如下部分：S——Linker——N——avi‑tag。通过经过优化的刚性linker序列把S蛋白和N蛋白串联起来，使得这两个蛋白即具备相对独立的空间构象，又增加了许多优势表位，很大程度上提高了灵敏度和信号值；此外，融合蛋白引入Avi‑tag，使得重组蛋白可以通过固定的位点被固相化，降低包被过程所带来的空间位阻的影响。由此，该多肽能够达到很高的灵敏度和特异性，并且不易发生漏检。 - <a href="https://patentscope.wipo.int/search/en/detail.jsf?docId=CN339334229">link</a></p></li>
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