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186 lines
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<title>19 July, 2023</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>Power users: Technology and Canadian sex workers during COVID-19</strong> -
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<div>
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The transition from physical to online advertising by sex workers in Canada has been well documented. However, few studies use rigorous sampling methods. This study considers how a technically sophisticated group of advertisers from a large Canadian sex work classifieds site used multiple online resources to promote or provide services during the COVID-19 pandemic. Advertisers qualified for the study if they used a URL as part of their contact information and were actively advertising between August 23 and September 22, 2022. A random sample of 1000 qualifying advertisers were selected of which 783 had accessible contact URLs. Themes were identified in downloaded website texts using grounded theory analysis. Ad metadata was used to identify demographic and behavioral distinctions between the sample and other advertisers. Almost all sampled advertisers (99%) provided in person services and most (70%) provided online services. The sample advertised more frequently, were more affluent and were more likely to be Anglophone, White, trans-female, or provide BDSM services. Themes of security, health, identity, and social networks were identified. Advertisers emphasized physical, emotional, and financial security. Most workers did not work in isolation and many participated in extensive social networks.
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🖺 Full Text HTML: <a href="https://osf.io/preprints/socarxiv/u5kd2/" target="_blank">Power users: Technology and Canadian sex workers during COVID-19</a>
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</div></li>
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<li><strong>Deep mutational scanning of whole SARS-CoV-2 spike in an inverted infection system</strong> -
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<div>
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In order to investigate SARS-CoV-2 mutations and their impact on immune evasion and infectivity, we developed a Deep Mutational Scanning (DMS) platform utilizing an inverted infection assay to measure spike expression, ACE2 affinity, and viral infectivity in human cells. Surprisingly, our analysis reveals that spike protein expression, rather than ACE2 affinity, is the primary factor affecting viral infectivity and correlated with SARS-CoV-2 evolution. Notably, within the N-terminal domain (NTD), spike expression and infectivity-enhancing mutations are concentrated in flexible loops. We also observed that Omicron variants BA.1 and BA.2 exhibit immune evasion through receptor binding domain (RBD) mutations, although these mutations reduce structural stability. Interestingly, the NTD has evolved to increase stability, compensating for the RBD instability and resulting in heightened overall infectivity. Our findings, available in SpikeScanDB, emphasize the importance of spike expression levels and compensatory mutations in both the NTD and RBD domains for shaping Omicron variant infectivity.
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</div>
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<div class="article-link article-html-link">
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🖺 Full Text HTML: <a href="https://www.biorxiv.org/content/10.1101/2023.07.17.549430v1" target="_blank">Deep mutational scanning of whole SARS-CoV-2 spike in an inverted infection system</a>
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</div></li>
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<li><strong>Breakthrough infection elicits hypermutated IGHV3-53/3-66 public antibodies with broad and potent neutralizing activity against SARS-CoV-2 variants including BQ and XBB lineages</strong> -
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<div>
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The rapid emergence of SARS-CoV-2 variants of concern (VOCs) calls for efforts to study broadly neutralizing antibodies elicited by infection or vaccination so as to inform the development of vaccines and antibody therapeutics with broad protection. Here, we identified two convalescents of breakthrough infection with relatively high neutralizing titers against all tested viruses including BQ and XBB lineages. Among 50 spike-specific monoclonal antibodies (mAbs) cloned from their B cells, the top 6 neutralizing mAbs (KXD01-06) belong to previously defined IGHV3-53/3-66 public antibodies. Although most antibodies in this class are dramatically escaped by VOCs, KXD01-06 exhibit broad neutralizing capacity with the IC50s of KXD01 ranging from 0.011~0.059ug/ml. Deep mutational scanning reveals that KXD01-06 target highly conserved sites on RBD including D420, Y421, L455, F456, A475 and N487. Genetic and functional analysis further indicates that the extent of somatic hypermutation is critical for the breadth of IGHV3-53/3-66 public antibodies. Overall, we discovered and characterized IGHV3-53/3-66 public antibodies with broad and potent neutralizing activity against SARS-CoV-2, which provides rationale for novel vaccines and antibody therapeutics based on this class of antibodies.
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</div>
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<div class="article-link article-html-link">
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🖺 Full Text HTML: <a href="https://www.biorxiv.org/content/10.1101/2023.07.18.549524v1" target="_blank">Breakthrough infection elicits hypermutated IGHV3-53/3-66 public antibodies with broad and potent neutralizing activity against SARS-CoV-2 variants including BQ and XBB lineages</a>
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</div></li>
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<li><strong>ACE2 mimetic antibody potently neutralizes all SARS-CoV-2 variants and fully protects in XBB.1.5 challenged monkeys</strong> -
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<div>
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The rapid evolution of SARS-CoV-2 to variants with improved transmission efficiency and reduced sensitivity to vaccine-induced humoral immunity has abolished the protective effect of licensed therapeutic human monoclonal antibodies (mAbs). To fill this unmet medical need and protect vulnerable patient populations, we isolated the P4J15 mAb from a previously infected, vaccinated donor, with <20 ng/ml neutralizing activity against all Omicron variants including the latest XBB.2.3 and EG.1 sub-lineages. Structural studies of P4J15 in complex with Omicron XBB.1 Spike show that the P4J15 epitope shares ~93% of its buried surface area with the ACE2 contact region, consistent with an ACE2 mimetic antibody. Although SARS-CoV-2 mutants escaping neutralization by P4J15 were selected in vitro, these displayed lower infectivity, poor binding to ACE2, and the corresponding "escape" mutations are accordingly rare in public sequence databases. Using a SARS-CoV-2 XBB.1.5 monkey challenge model, we show that P4J15 confers complete prophylactic protection. We conclude that the P4J15 mAb has potential as a broad-spectrum anti-SARS-CoV-2 drug.
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</div>
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<div class="article-link article-html-link">
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🖺 Full Text HTML: <a href="https://www.biorxiv.org/content/10.1101/2023.07.18.549530v1" target="_blank">ACE2 mimetic antibody potently neutralizes all SARS-CoV-2 variants and fully protects in XBB.1.5 challenged monkeys</a>
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</div></li>
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<li><strong>A high-throughput multiplex array for antigen-specific serology with automated analysis.</strong> -
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<div>
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The utility of high-throughput systems to evaluate antigen-specific Ab has been highlighted by the SARS-CoV-2 pandemic. Pathogen specific antibody levels are often used to assess protection following vaccination and, in the case of novel pathogens, an indication of prior exposure. Several platforms exist to visualize antigen-specific Ab, however most are not quantitative and difficult to scale for population levels studies. Additionally, the sensitivity across platforms differs making direct comparisons between studies difficult. Cytometric Bead Arrays are an attractive platform for antigen-specific Ab measurements as they allow antibodies reactive against several antigens and of several isotypes to be performed simultaneously. Additionally, cytometric arrays exhibit a high sensitivity and can be designed to provide quantitative measurements. Using commercially available particles, a biotin-Streptavidin loading strategy, and the inclusion of indirect standards, we describe here a flexible system that can be modified to include a variety of antigens. We generated two arrays, one focused on b-Coronavirus antigens and one focused on Influenza. To support the high throughput capacity of this system, we developed a suit of automated tools to process raw data into antigen-reactive IgM, IgA, and IgG. We describe quality control requirements, assay performance, and normalizations to accurately quantitate antigen specific Ig.
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</div>
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<div class="article-link article-html-link">
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🖺 Full Text HTML: <a href="https://www.biorxiv.org/content/10.1101/2023.03.29.534777v2" target="_blank">A high-throughput multiplex array for antigen-specific serology with automated analysis.</a>
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</div></li>
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<li><strong>The impact of frailty on the outcomes of COVID-19 patients with persistent critical illness: A population-based cohort study.</strong> -
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<div>
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Objectives: Persistent critical illness (PerCI, > or equal to 10 days in Intensive Care Unit [ICU]) is defined as the time from ICU admission when patients antecedent characteristics define their mortality rather than the admission aetiology. Patients with frailty and without COVID-19 have a higher risk of developing and dying from PerCI. We aimed to investigate the impact of frailty on critically ill patients with COVID-19 experiencing PerCI. Methods: We conducted a retrospective multicentre cohort study including 103 Australian and New Zealand ICUs over two years, investigating the impact of frailty, measured with Clinical Frailty Scale (CFS), in patients with COVID-19, between patients with and without PerCI. Results: The prevalence of PerCI was similar between patients with and without frailty (25.4% vs. 27.9%; p=0.44). Hospital mortality was higher in patients with PerCI than without (28.8% vs. 9.3%; p<0.001), with mortality rising with increasing CFS (p<0.001). Frailty independently predicted hospital mortality, but when adjusted for ANZROD and sex, its impact was no different in patients with and without PerCI (odds ratio [OR]=1.30 [95%-CI: 1.14-1.49] vs. OR=1.46 [95%-CI: 1.29-1.64]). Conclusions: The presence of frailty independently predicted hospital mortality in patients with PerCI, but frailty did not have a different impact on patients with and without PerCI.
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</p>
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<div class="article-link article-html-link">
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🖺 Full Text HTML: <a href="https://www.medrxiv.org/content/10.1101/2023.07.17.23292714v1" target="_blank">The impact of frailty on the outcomes of COVID-19 patients with persistent critical illness: A population-based cohort study.</a>
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</div></li>
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<li><strong>The scientific chaos phase of the Great Pandemic: A longitudinal analysis and systematic review of the first surge of clinical research concerning COVID-19</strong> -
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Abstract Background Early stages of catastrophes like COVID-19 are often led by chaos and panic. To characterize the initial chaos phase of clinical research in such situations, we analyzed the first surge of more than 1000 clinical trials about the new disease at baseline and after two years follow-up. Our 3 main objectives were: (1) Assessment of spatial and temporal evolution of clinical research of COVID-19 across the globe, (2) Assessment of transparency and quality - trial registration, (3) Assessment of research waste and redundancies. Methods By entering the keyword “COVID-19” we screened the International Clinical Trials Registry Platform of the WHO and downloaded the search output when our goal of 1000 trials was reached on the 1st of April. Additionally, we verified the integrity of the downloaded data from the meta registry by comparing the data with each individual registration record on their source register. Also, we conducted a follow-up after two years to track their progress. Results (1) The spatial evolution followed the geographical spread of the disease as expected, however, the temporal development suggested that panic was the main driver for clinical research activities. (2) Trial registrations and registers showed a huge lack of transparency by allowing retrospective registrations and not keeping their registration records up to date. Quality of trial registration seems to have improved over the last decade, yet crucial information still was missing. (3) Research waste and redundancies were present as suggested by discontinuation of trials, preventable flaws in study design, and similar but uncoordinated research topics operationally fragmented in isolated silo-structures. Conclusion The scientific response mechanism across the globe was intact during the chaos phase. However, supervision, leadership, and accountability are urgently needed to prevent research waste, to ensure effective structure, quality, and validity to ultimately break the “panic-then-forget” cycle in future catastrophes.
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</p>
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<div class="article-link article-html-link">
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🖺 Full Text HTML: <a href="https://www.medrxiv.org/content/10.1101/2023.07.14.23292667v1" target="_blank">The scientific chaos phase of the Great Pandemic: A longitudinal analysis and systematic review of the first surge of clinical research concerning COVID-19</a>
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</div></li>
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<li><strong>Community-onset urinary tract infection in females in the context of COVID-19: a longitudinal population cohort study exploring case presentation, management, and outcomes</strong> -
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Background COVID-19 affected the epidemiology of other infectious diseases and how they were managed. Urinary tract infection (UTI) is one of the most common infections treated in the community in England. We investigated the impact of the COVID-19 pandemic on UTI primary care consultations and outcomes in female patients. Methods and findings We analysed General Practice (GP) consultation and hospital admission records using the Whole Systems Integrated Care (WSIC) data in North West London between 2016 and 2021. We quantified the changes in UTI GP consultation rates using time series analysis before and during the pandemic. We assessed the outcomes of UTI, measured by subsequent bacteraemia and sepsis within 60 days, for consultations delivered face-to-face or remotely, with or without diagnostic tests recommended by the national guidelines, and with or without antibiotic treatment. Between January 2016 and December 2021, we identified 375,859 UTI episodes in 233,450 female patients. Before the COVID-19 pandemic (January 2016-February 2020), the UTI GP consultation rate stayed level at 522.8 cases per 100,000 population per month, with a seasonal pattern of peaking in October. Since COVID-19, (March 2020-December 2021), monthly UTI GP consultations declined when COVID-19 cases surged and rose when COVID-19 case fell. During the pandemic, the UTI consultations delivered face-to-face reduced from 72.0% to 29.4%, the UTI consultations with appropriate diagnostic tests, including urine culture and urinalysis, reduced from 17.3% to 10.4%, and the UTI cases treated with antibiotics reduced from 52.0% to 47.8%. The likelihood of antibiotics being prescribed was not affected by whether the consultation was delivered face-to-face or remotely but associated with whether there was a diagnostic test. Regardless of whether the UTI consultation occurred before or during the pandemic, the absence of antibiotic treatment for UTI is associated with a 10-fold increase in the risk of having bacteraemia or sepsis within 60 days, though the patients who consulted GPs for UTI during the pandemic were older and more co-morbid. Across the study period (January 2016-December 2021), nitrofurantoin remained the first-line antibiotic option for UTI. The percentage of non-prophylactic acute UTI antibiotic prescriptions with durations that exceeded the guideline recommendations was 58.7% before the pandemic, and 49.4% since. This led to 830,522 total excess days of treatment, account for 63.3% of all non-prophylactic acute antibiotics prescribed for UTI. Before the pandemic, excess antibiotic days of UTI drugs had been reducing consistently. However, this decline slowed down during the pandemic. Having a diagnostic test was associated with 0.6 less excess days of antibiotic treatment. Conclusions This analysis provides a comprehensive examination of management and outcomes of community-onset UTI in female patients, considering the changes in GP consultations during the COVID-19 pandemic. Our findings highlighted the importance of appropriate urine testing to support UTI diagnosis in symptomatic patients and initiation of antibiotic treatment with appropriate course duration. Continued monitoring is required to assess the overall impact on patients and health systems from the changed landscape of primary care delivery.
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</p>
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</div>
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<div class="article-link article-html-link">
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🖺 Full Text HTML: <a href="https://www.medrxiv.org/content/10.1101/2023.07.16.23292705v1" target="_blank">Community-onset urinary tract infection in females in the context of COVID-19: a longitudinal population cohort study exploring case presentation, management, and outcomes</a>
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</div></li>
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<li><strong>COVFlow: performing virus phylodynamics analyses from selected SARS-CoV-2 genome sequences</strong> -
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<div>
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Phylodynamic analyses generate important and timely data to optimise public health response to SARS-CoV-2 outbreaks and epidemics. However, their implementation is hampered by the massive amount of sequence data and the difficulty to parameterise dedicated software packages. We introduce the COVFlow pipeline, accessible at https://gitlab.in2p3.fr/ete/CoV-flow, which allows a user to select sequences from the Global Initiative on Sharing Avian Influenza Data (GISAID) database according to user-specified criteria, to perform basic phylogenetic analyses, and to produce an XML file to be run in the Beast2 software package. We illustrate the potential of this tool by studying two sets of sequences from the Delta variant in two French regions. This pipeline can facilitate the use of virus sequence data at the local level, for instance, to track the dynamics of a particular lineage or variant in a region of interest.
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</div>
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<div class="article-link article-html-link">
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🖺 Full Text HTML: <a href="https://www.biorxiv.org/content/10.1101/2022.06.17.496544v6" target="_blank">COVFlow: performing virus phylodynamics analyses from selected SARS-CoV-2 genome sequences</a>
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</div></li>
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<li><strong>Revising Home Advantage in Sport – Home Advantage Mediation (HAM) Model</strong> -
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<div>
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Home Advantage (HA) is a robust phenomenon in which sport teams or individuals are more successful when they play in front of their fans. There are a number of causes of HA, but most theories assume that the crowd support spurs home players to better performance and biases referees, and that these two factors in turn influence the result. The interest in HA has grown during the Covid-19 pandemic as most competitions were taking place behind closed doors, a perfect control condition for disentangling the causal effects behind HA. Despite the presence of useful conceptual frameworks, most previous research has focused on investigating isolated individual factors. Here we review our newly developed Home Advantage Mediated (HAM) model, which considers all individual factors and their interrelations simultaneously. HAM assumes that the crowd effects are mediated through other relevant factors, such as referee bias and team performance. Most importantly, HAM can be formally expressed as a mediation model, a technique widely employed in social sciences for investigating causal pathways. We demonstrate how researchers can use HAM to model the HA in European football and how moderating variables, such as Covid-19 and absence of fans, can be incorporated in the model to disentangle the processes behind the HA phenomenon. Besides throwing new (modeling) light on one of the most robust phenomena in sport, we also provide information about practical implementation of mediation and moderated mediation models in the Bayesian framework. Similar implementations can be adapted for use in other sport science domains.
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🖺 Full Text HTML: <a href="https://osf.io/c8tu3/" target="_blank">Revising Home Advantage in Sport – Home Advantage Mediation (HAM) Model</a>
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<li><strong>Identification of predictive patient characteristics for assessing the probability of COVID-19 in-hospital mortality</strong> -
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As the world emerges from the COVID-19 pandemic, there is an urgent need to understand patient factors that may be used to predict the occurrence of severe cases and patient mortality. Approximately 20% of SARS-CoV-2 infections lead to acute respiratory distress syndrome caused by the harmful actions of inflammatory mediators. Patients with severe COVID-19 are often afflicted with neurologic symptoms, and individuals with pre-existing neurodegenerative disease have an increased risk of severe COVID-19. Although collectively, these observations point to a bidirectional relationship between severe COVID-19 and neurologic disorders, little is known about the underlying mechanisms. Here, we analyzed the electronic health records of 471 patients with severe COVID-19 to identify clinical characteristics most predictive of mortality. Feature discovery was conducted by training a regularized logistic regression classifier that serves as a machine-learning model with an embedded feature selection capability. SHAP analysis using the trained classifier revealed that a small ensemble of readily observable clinical features, including characteristics associated with cognitive impairment, could predict in-hospital mortality with an accuracy greater than 0.85 (expressed as the area under the ROC curve of the classifier). These findings have important implications for the prioritization of clinical measures used to identify patients with COVID-19 (and, potentially, other forms of acute respiratory distress syndrome) having an elevated risk of death.
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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/10.1101/2023.07.16.23292738v1" target="_blank">Identification of predictive patient characteristics for assessing the probability of COVID-19 in-hospital mortality</a>
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<li><strong>Evaluation of the impact of COVID-19 pandemic on hospital admission related to common infections</strong> -
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Background: Antimicrobial resistance (AMR) is a multifaceted global challenge, partly driven by inappropriate antibiotic prescribing. The COVID-19 pandemic impacted antibiotic prescribing for common bacterial infections. This highlights the need to examine risk of hospital admissions related to common infections, excluding COVID-19 infections during the pandemic. Methods: With the approval of NHS England, we accessed electronic health records from The Phoenix Partnership (TPP) through OpenSAFELY platform. We included patients with primary care diagnosis of common infections, including lower respiratory tract infection (LRTI), upper respiratory tract infections (URTI), and lower urinary tract infection (UTI), from January 2019 to August 2022. We excluded patients with a COVID-19 record 90 days before to 30 days after the infection diagnosis. Using Cox proportional-hazard regression models, we predicted risk of infection-related hospital admission in 30 days follow-up period after the diagnosis. Results: We found 12,745,165 infection diagnoses from January 2019 to August 2022. Of them, 80,395 (2.05%) cases were admitted to hospital in the follow-up period. Counts of hospital admission for infections dropped during COVID-19, e.g., LRTI from 3,950 in December 2019 to 520 in April 2020. Comparing those prescribed an antibiotic to those without, reduction in risk of hospital admission were largest with LRTI (adjusted odds ratio (OR) of 0.35; 95% CI, 0.35-0.36) and UTI (adjusted OR 0.45; 95% CI, 0.44-0.46), compared to URTI (adjusted OR 1.04; 95% CI, 1.03-1.06). Conclusion: Large effectiveness of antibiotics in preventing complications related to LRTI and UTI can support better targeting of antibiotics to patients with higher complication risks.
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</p>
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<div class="article-link article-html-link">
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🖺 Full Text HTML: <a href="https://www.medrxiv.org/content/10.1101/2023.07.16.23292723v1" target="_blank">Evaluation of the impact of COVID-19 pandemic on hospital admission related to common infections</a>
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</div></li>
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<li><strong>Surviving but not thriving: VOX and Spain in times of Covid-19</strong> -
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We seek to advance the understanding of how the populist radical right in Spain reacted to Covid-19 in 2020. In particular, our contribution seeks to answer three questions. First, we consider the discursive and rhetorical tools adopted by the party. Second, we analyse how VOX, as an opposition party, has sought to challenge the governing coalition and the mainstream right. Specifically, we analyse the incentives, rationale, process and consequences party’s no confidence measure brought against the governing coalition. Third, we assess to what extent the party’s electoral potential has been influenced by the pandemic by analysing the party’s performance in the polls as well as support for VOX’s leadership amongst the party’s own voter base.
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🖺 Full Text HTML: <a href="https://osf.io/gvnpe/" target="_blank">Surviving but not thriving: VOX and Spain in times of Covid-19</a>
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<li><strong>Safety and immunogenicity of a heterologous booster with an RBD virus-like particle vaccine following two- or three-dose inactivated COVID-19 vaccine</strong> -
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Background: Reduced protection against COVID-19 due to the waning vaccine-induced immunity over time and emergence of immune-evading SARS-CoV-2 variants of concern (VOCs) indicate the need for vaccine boosters. LYB001 is an innovative recombinant SARS-CoV-2 vaccine which displays a repetitive array of the Spike glycoprotein9s receptor binding domain (RBD) on a virus-like particle (VLP) vector to boost the immune system, produced using a Covalink plug-and-display protein binding technology. Methods: The safety and immunogenicity of LYB001 as a heterologous booster at an interval of 6-12 months was assessed in 119 participants receiving a booster with (1) 30μg LYB001 (I-I-30L) or CoronaVac (I-I-C), (2) escalated dose of 60μg LYB001 (I-I-60L) or CoronaVac in a ratio of 2:1 after two-dose primary series of inactivated COVID-19 vaccine in part 1 of this study, or (3) 30μg LYB001 (I-I-I-30L) after three-dose primary series of inactivated COVID-19 vaccine in part 2 of this study. Results: A well-tolerated reactogenicity profile was observed for LYB001 as a heterologous booster, with adverse reactions predominantly being mild in severity and transient. The peak neutralizing antibody response was observed at 28 days after booster, with GMT (95%CI) against prototype SARS-CoV-2 being 1237.8 (747.2, 2050.6), 554.3 (374.6, 820.2), 181.9 (107.6, 307.6) and 1200.2 (831.5, 1732.3) in the I-I-30L, I-I-60L, I-I-C, and I-I-I-30L groups, respectively. LYB001 also elicited a cross-neutralizing antibody response against the BA.4/5 strain, dominant during the study period, with GMT being 201.1 (102.7, 393.7), 63.0 (35.1, 113.1), 29.2 (16.9, 50.3) and 115.3 (63.9, 208.1) at 28 days after booster in the I-I-30L, I-I-60L, I-I-C, and I-I-I-30L groups, respectively. Additionally, RBD-specific IFN-γ, IL-2, IL-4 secreting T cells, as measured by ELISpot assay, dramatically increased (more than 10 times versus baseline) at 14 days after a single LYB001 booster. Conclusions: Our data confirm the favorable safety and immunogenicity profile of the LYB001 vaccine when used as a heterologous booster, and support the continued clinical development of this promising candidate that utilize VLP platform to provide protection against COVID-19.
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🖺 Full Text HTML: <a href="https://www.medrxiv.org/content/10.1101/2023.07.17.23292762v1" target="_blank">Safety and immunogenicity of a heterologous booster with an RBD virus-like particle vaccine following two- or three-dose inactivated COVID-19 vaccine</a>
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<li><strong>Intranasal lavage with hypochlorous acid safely reduces the symptoms in the ambulatory patient with COVID-19.</strong> -
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ABSTRACT OBJECTIVE This study was designed to investigate intranasal lavage with a hypochlorous acid solution in the reduction of symptoms in the ambulatory COVID-19 patient. STUDY DESIGN Study approval granted by the Institutional Review Board of Reading Hospital (IRB 036-20), with informed consent obtained from all adult participants(age>18 years). SETTING All enrollees, taken from the same ambulatory testing facility, received nasopharyngeal swabs for COVID-19 testing by reverse transcription polymerase chain (RT-PCR) or the COVID-19 antigen specific test (Binax NOW, Abbott Lab) METHODS Convenience sampling methodology was utilized. Each enrollee was provided with the study devices which included a Nasaflo Neti Pot (NeilMed Pharmaceutical, Inc.), and the hypochlorous acid solution (Vashe Wound Solution, Urgo Medical North America, LLC). Participants were instructed to irrigate each nostril with 120 cc (four ounces) of the solution for ten consecutive days, and record the presence or absence of symptoms in a scripted diary log. RESULTS The study included 88 patients of which 74 (84.1%) completed the ten days of nasal lavage. All data analysis was conducted using SPSS version 25.0. Chi square test of association found no significant difference related to gender, age group race, ethnicity, residence, or living arrangements (all p-values > 0.05). There were no statistical differences in any of the co-morbid conditions. Mild adverse reactions included burning, epistaxis, and oral metallic taste. No enrollees required mechanical ventilation. There were no deaths. CONCLUSION This study suggests the feasibility and safety of using intranasal lavage with a hypochlorous acid solution in relieving symptoms in the ambulatory Covid-19 patient.
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🖺 Full Text HTML: <a href="https://www.medrxiv.org/content/10.1101/2023.07.17.23292426v1" target="_blank">Intranasal lavage with hypochlorous acid safely reduces the symptoms in the ambulatory patient with COVID-19.</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>Homologous Booster Study of COVID-19 Protein Subunit Recombinant Vaccine</strong> - <b>Condition</b>: COVID-19<br/><b>Intervention</b>: Biological: SARS-CoV-2 Subunit Recombinant Protein Vaccine<br/><b>Sponsor</b>: PT Bio Farma<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>Role of Ivermectin and Colchicine in Treatment of COVID-19: Randomized Controlled Clinical Trial</strong> - <b>Condition</b>: COVID-19<br/><b>Interventions</b>: Drug: Ivermectin Tablets; Drug: Colchicine 0.5 MG; Drug: Standared managment<br/><b>Sponsor</b>: Ain Shams University<br/><b>Completed</b></p></li>
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<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>A Study to Evaluate the Immunogenicity and Safety of A Recombinant Protein COVID-19 Vaccine as Booster Vaccines</strong> - <b>Conditions</b>: COVID-19; SARS-CoV-2 Infection<br/><b>Interventions</b>: Biological: SCTV01E-2; Biological: SCTV01E<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>Smell in COVID-19 and Efficacy of Nasal Theophylline (SCENT 3)</strong> - <b>Condition</b>: COVID-19<br/><b>Interventions</b>: Drug: theophylline; Drug: Placebo<br/><b>Sponsor</b>: Washington University School of Medicine<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>Developing an Effective Intervention to Address Post-Corona-Virus-Disease-2019 Balance Disorders, Weakness and Muscle Fatigue in Individuals Aged 65+</strong> - <b>Condition</b>: COVID-19<br/><b>Intervention</b>: Device: Resistance Training<br/><b>Sponsor</b>: Józef Piłsudski University of Physical Education<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>Multimodal Long Covid19</strong> - <b>Condition</b>: Long COVID-19 Syndrome<br/><b>Intervention</b>: Other: Multimodal intervention in Long Covid19<br/><b>Sponsors</b>: Universidad de Magallanes; Teaching Assistance and Research Center of the University of Magallanes CADI-UMAG; Clinical Hospital Dr. Lautaro Navarro Avaria<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>COVID-19 Trial of the Candidate Vaccine MVA-SARS-2-S in Adults</strong> - <b>Condition</b>: Covid19<br/><b>Interventions</b>: Biological: MVA-SARS-2-S; Other: Placebo<br/><b>Sponsors</b>: Universitätsklinikum Hamburg-Eppendorf; German Center for Infection Research; Philipps University Marburg Medical Center; Ludwig-Maximilians - University of Munich; University Hospital Tuebingen; CTC-NORTH<br/><b>Withdrawn</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>Treatment of Long COVID (TLC) Feasibility Trial</strong> - <b>Condition</b>: COVID-19<br/><b>Interventions</b>: Drug: Low-dose Naltrexone (LDN); Drug: Cetirizine; Drug: Famotidine; Drug: LDN Placebo; Drug: Cetirizine Placebo; Drug: Famotidine Placebo<br/><b>Sponsors</b>: Emory University; CURE Drug Repurposing Collaboratory (CDRC)<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>Efficiency and Safety of Paxlovid for COVID-19 Patients With Severe Chronic Kidney Disease</strong> - <b>Conditions</b>: COVID-19; Renal Insufficiency, Chronic<br/><b>Intervention</b>: Drug: Nirmatrelvir/ritonavir<br/><b>Sponsor</b>: Chinese PLA General 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>Safety, Efficacy, and Dosing of VIX001 in Patients With Neurological Symptoms of Post Acute COVID-19 Syndrome (PACS).</strong> - <b>Conditions</b>: Post-Acute COVID-19 Syndrome; Cognitive Impairment; Neurological Complication<br/><b>Intervention</b>: Drug: VIX001<br/><b>Sponsor</b>: Neobiosis, LLC<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>Effects of Music Combined With Sports Games on Alleviating Psychological Stress, Anxiety and Mental Energy Among Adolescents During COVID-19 Pandemic in Lanzhou Gansu Province China</strong> - <b>Conditions</b>: Stress; Anxiety and Fear<br/><b>Interventions</b>: Behavioral: Music intervention only; Behavioral: Sports games intervention only; Behavioral: Music and sports games intervention<br/><b>Sponsor</b>: Wu Jiarun<br/><b>Completed</b></p></li>
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<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>A Clinical Evaluation of the Safety and Efficacy of Randomized Placebo Versus the 8-aminoquinoline Tafenoquine for Early Symptom Resolution in Patients With Mild to Moderate COVID 19 Disease and Low Risk of Disease Progression</strong> - <b>Conditions</b>: COVID 19 Disease; Mild to Moderate COVID 19 Disease; SARS-CoV-2; Infectious Disease; Severe Acute Respiratory Syndrome Coronavirus 2<br/><b>Interventions</b>: Drug: Tafenoquine Oral Tablet; Drug: Placebo<br/><b>Sponsor</b>: 60P Australia Pty 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 the Efficacy, Safety, Tolerability and PK of SNS812 in Mild to Moderate COVID-19 Patients</strong> - <b>Condition</b>: Disease Caused by Severe Acute Respiratory Syndrome Coronavirus 2 (Disorder)<br/><b>Interventions</b>: Drug: MBS-COV; Drug: Placebo<br/><b>Sponsor</b>: Oneness 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>Efficacy of the Therapy With BRAINMAX® Using fMRI for the Treatment of Patients With Asthenia After COVID-19</strong> - <b>Conditions</b>: Asthenia; COVID-19; Functional MRI; Cognitive Impairment<br/><b>Interventions</b>: Other: Structural and functional MRI; Drug: Ethyl methyl hydroxypyridine succinate + Meldonium; Drug: Placebo<br/><b>Sponsor</b>: Promomed, LLC<br/><b>Completed</b></p></li>
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<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>NDV-HXP-S Vaccine Clinical Trial (COVIVAC)</strong> - <b>Condition</b>: COVID-19<br/><b>Intervention</b>: Biological: COVIVAC vaccine<br/><b>Sponsors</b>: Institute of Vaccines and Medical Biologicals, Vietnam; National Institute of Hygiene and Epidemiology (NIHE), Vietnam; Center for Disease Control of Thai Binh Province, Vietnam<br/><b>Completed</b></p></li>
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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>Research Progress of Immunomodulation on Anti-COVID-19 and the Effective Components from Traditional Chinese Medicine</strong> - SARS-CoV-2 has posed a threat to the health of people around the world because of its strong transmission and high virulence. Currently, there is no specific medicine for the treatment of COVID-19. However, for a wide variety of medicines used to treat COVID-19, traditional Chinese medicine (TCM) plays a major role. In this paper, the effective treatment of COVID-19 using TCM was consulted first, and several Chinese medicines that were frequently used apart from their huge role in treating it…</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 Phase 2 randomised study to establish efficacy, safety and dosing of a novel oral cathepsin C inhibitor, BI 1291583, in adults with bronchiectasis: Airleaf</strong> - New therapies are needed to prevent exacerbations, improve quality of life and slow disease progression in bronchiectasis. Inhibition of cathepsin C (CatC) activity has the potential to decrease activation of neutrophil-derived serine proteases in patients with bronchiectasis, thereby reducing airway inflammation, improving symptoms, reducing exacerbations and preventing further airway damage. Here we present the design of a phase 2 trial (Airleaf™; NCT05238675) assessing the efficacy and safety…</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 inactivated SARS-CoV-2 vaccine in haemodialysis patients: a prospective cohort study</strong> - End-stage renal disease patients on haemodialysis (HD) have been largely excluded from SARS-CoV-2 vaccine trials due to safety reasons and shown to mount lower responses to vaccination. This study aims to evaluate the immunogenicity and safety of inactivated COVID-19 vaccine among HD patients compared to healthy controls. All subjects who received the primary inactivated COVID-19 vaccination had their blood samples tested 21 days after the second dose. We report the immunogenicity based on…</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>Effective SARS-CoV-2 replication of monolayers of intestinal epithelial cells differentiated from human induced pluripotent stem cells</strong> - Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) causes severe acute respiratory symptoms in humans. Controlling the coronavirus disease pandemic is a worldwide priority. The number of SARS-CoV-2 studies has dramatically increased, and the requirement for analytical tools is higher than ever. Here, we propose monolayered-intestinal epithelial cells (IECs) derived from human induced pluripotent stem cells (iPSCs) instead of three-dimensional cultured intestinal organoids as a suitable…</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>Picolinic acid is a broad-spectrum inhibitor of enveloped virus entry that restricts SARS-CoV-2 and influenza A virus in vivo</strong> - The COVID-19 pandemic highlights an urgent need for effective antivirals. Targeting host processes co-opted by viruses is an attractive antiviral strategy with a high resistance barrier. Picolinic acid (PA) is a tryptophan metabolite endogenously produced in mammals. Here, we report the broad-spectrum antiviral activity of PA against enveloped viruses, including severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), influenza A virus (IAV), flaviviruses, herpes simplex virus, and…</p></li>
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<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Federal telehealth policy changes during the COVID-19 public health emergency: Associations with telemental health use among rural and urban Medicare beneficiaries</strong> - CONCLUSIONS: TMH mitigated PHE-related barriers to MHS access for rural and urban beneficiaries, but urban residents benefited disproportionately. Among rural beneficiaries, older age was related to lower TMH use. To avoid reinforcing existing MHS access disparities, policies must address factors limiting TMH use among rural beneficiaries, especially those over 75 and those from historically underserved communities.</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 Nsp1 regulates translation start site fidelity to promote infection</strong> - A better mechanistic understanding of virus-host interactions can help reveal vulnerabilities and identify opportunities for therapeutic interventions. Of particular interest are essential interactions that enable production of viral proteins, as those could target an early step in the virus lifecycle. Here, we use subcellular proteomics, ribosome profiling analyses and reporter assays to detect changes in polysome composition and protein synthesis during SARS-CoV-2 (CoV2) infection. We identify…</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>Seasonal coronavirus infections trigger NLRP3 inflammasome activation in macrophages but is therapeutically targetable</strong> - Seasonal coronaviruses widely circulate in the global population, and severe complications can occur in specific vulnerable populations. Little is known on their pathogenic mechanisms and no approved treatment is available. Here, we present anecdotal evidence that the level of IL-1β, a hallmark of inflammasome activation, appears elevated in a subset of seasonal coronavirus infected patients. We found that cultured human macrophages support the full life cycle of three cultivatable seasonal…</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>Proxalutamide reduces SARS-CoV-2 infection and associated inflammatory response</strong> - Early in the COVID-19 pandemic, data suggested that males had a higher risk of developing severe disease and that androgen deprivation therapy might be associated with protection. Combined with the fact that TMPRSS2 (transmembrane serine protease 2), a host entry factor for the SARS-CoV-2 virus, was a well-known androgen-regulated gene, this led to an upsurge of research investigating androgen receptor (AR)-targeting drugs. Proxalutamide, an AR antagonist, was shown in initial clinical studies…</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>Exploring epigenetic drugs as potential inhibitors of SARS-CoV-2 main protease: a docking and MD simulation study</strong> - The COVID-19 pandemic has caused havoc around the globe since 2019 and is considered the largest global epidemic of the twentieth century. Although the first antiviral drug, Remdesivir, was initially introduced against COVID‑19, virtually no tangible therapeutic drugs exist to treat SARS-CoV-2 infection. FDA-approved Paxlovid (Nirmatrelvir supplemented by Ritonavir) was recently announced as a promising drug against the SARS-CoV-2 major protease (M^(pro)). Here we report for the first time 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>Inhibition of Cysteine Proteases via Thiol-Michael Addition Explains the Anti-SARS-CoV-2 and Bioactive Properties of Arteannuin B</strong> - Artemisia annua is the plant that produces artemisinin, an endoperoxide-containing sesquiterpenoid used for the treatment of malaria. A. annua extracts, which contain other bioactive compounds, have been used to treat other diseases, including cancer and COVID-19, the disease caused by the virus SARS-CoV-2. In this study, a methyl ester derivative of arteannuin B was isolated when A. annua leaves were extracted with a 1:1 mixture of methanol and dichloromethane. This methyl ester was thought to…</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>M<sup>pro</sup>-targeted anti-SARS-CoV-2 inhibitor-based drugs</strong> - The COVID-19 pandemic caused by severe acute respiratory syndrome coronavirus 2 is a global health emergency. The main protease is an important drug target in coronaviruses. It plays an important role in the processing of viral RNA-translated polyproteins and is highly conserved in the amino acid sequence and three-dimensional structure, making it a good drug target for which several small molecule inhibitors are available. This paper describes the various anti-severe acute respiratory syndrome…</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 perspective on the immunomodulatory activity of ginsenosides: Focus on effective therapies for post-COVID-19</strong> - More than 700 million confirmed cases of Coronavirus Disease-2019 (COVID-19) have been reported globally, and 10-60% of patients are expected to exhibit “post-COVID-19 symptoms,” which will continue to affect human life and health. In the absence of safer, more specific drugs, current multiple immunotherapies have failed to achieve satisfactory efficacy. Ginseng, a traditional Chinese medicine, is often used as an immunomodulator and has been used in COVID-19 treatment as a tonic to increase…</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>Terpenoid phytocompounds from mangrove plant Xylocarpus moluccensis as possible inhibitors against SARS-CoV-2: In silico strategy</strong> - COVID-19 shook the world during the pandemic, where the climax it reached was vaccine manufacturing at an unfathomable pace. Alternative promising solutions to prevent infection from SARS-CoV-2 and its variants will remain crucial in the years to come. Due to its key role in viral replication, the major protease (Mpro) enzyme of SARS-CoV-2 can be an attractive therapeutic target. In the present work, natural terpenoids from mangrove medicinal plant Xylocarpus moluccensis (Lam.) M. Roem. were…</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>‘Pterocephalodes hookeri-Onosma hookeri’ decoction protects against LPS-induced pulmonary inflammation via inhibiting TLR4/ NF-κB signaling pathway</strong> - CONCLUSION: In summary, the combination therapy of ‘P-O’ exhibited good antioxidant activity and anti-inflammatory activity in vitro, as well as a therapeutic effect against pulmonary inflammation in vivo. These findings provide evidence for the clinical application of ‘P-O’ and offer new approaches for treating pneumonia.</p></li>
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<h1 data-aos="fade-right" id="from-patent-search">From Patent Search</h1>
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