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Researchers identify kite-shaped molecules that block SARS-CoV-2 cell entry after attachment


Researchers identify kite-shaped molecules that block SARS-CoV-2 cell entry after attachment
A team of scientists from the University of Manchester, UK, has recently screened a panel of FDA-approved compounds to identify potential antiviral agents against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the causative pathogen of coronavirus disease 2019 (COVID-19). They have identified a group of kite-shaped compounds that are highly specific to SARS-CoV-1 and SARS-CoV-2. These compounds demonstrate high potency in inhibiting SARS-CoV-2 infection at early entry steps. The study is currently available on the
Background
As of June 2, 2021, globally, there have been more than 171 million confirmed SARS-CoV-2 infections, with over 3.56 million deaths. The newly emerging viral variants have led to global concerns about the long-term efficacy of the COVID-19 vaccines that have been developed against the original strain of SARS-CoV-2. In order to effectively con ....

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Which biomarkers can help predict adverse outcomes in COVID-19?


Which biomarkers can help predict adverse outcomes in COVID-19?
The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the causative virus of coronavirus disease 2019 (COVID-19), was declared a pandemic on March 11, 2020, by the World Health Organisation (WHO).
The severity of this infectious disease has strained healthcare resources to capacity in many parts of the world. Many healthcare systems have seen an inadequate number of intensive care unit (ICU) beds as well as mechanical ventilators available to treat the influx of patients the pandemic has wrought. The critically low supply of these vital resources underscores the need for clinicians to identify biomarkers that can predict factors such as ICU stay and mortality. This would help to allocate these lifesaving resources appropriately. ....

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SARS-CoV-2 B.1.1.420 and B.1.617.1 immune escape variants reported in France


SARS-CoV-2 B.1.1.420 and B.1.617.1 immune escape variants reported in France
Since its emergence in Wuhan, China, in December 2019, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the causative agent of COVID-19 (coronavirus disease 2019), is rapidly spreading, with numerous variants being observed around the world. A high transmission rate would indicate an undergoing process of positive selection of variants, which might allow the virus to acquire some advantageous genetic traits. Emerging variants are likely to be more transmissible, more pathogenic, and more likely to escape natural immunity or vaccine immunity.
Therefore genomic surveillance of SARS-CoV-2 and its variants is essential. It provides insights into the mechanisms behind viral dissemination worldwide. The variants include N501Y, E484K, or L452R mutations on gene coding to the viral spike protein. The two new Indian variants recently identified are N440K and the E484Q and L452R mutations assoc ....

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