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Variants

Interplay between Emerging SARS-CoV-2 Variants and Pandemic Control

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is a member of a diverse family of enveloped, nonsegmented RNA viruses. The coronavirus genomic RNA is unusually large, the RNA polymerase is error-prone, and mutations accumulate with increasing frequency during infections. With continued uncontrolled transmission and viral replication, mutations that give the […]

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Topol Talks: COVID-19 Variants Are Innocent Until Proven Guilty

Editor’s note: Find the latest COVID-19 news and guidance in Medscape’s Coronavirus Resource Center. Medscape Medical News Editor-in-Chief Eric Topol, MD, founder and director of the Scripps Research Translational Institute and professor of molecular medicine, has been closely following COVID-19 data since the pandemic began. He spoke with writer Miriam E. […]

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Global Variants Report

Countries that have reported variants of SARS-CoV-2. A new SARS-CoV-2 variant has one or more mutations that differentiate it from predominant virus variants already circulating among the general population. Variants are expected to occur as viruses are constantly changing. Surveillance can help investigate how some variants may impact COVID-19 disease […]

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New SARS-CoV-2 Variants Clinical, Public Health, and Vaccine Implications

Across the world, there are multiple variants of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the virus that causes coronavirus disease 2019 (Covid-19). SARS-CoV-2 variants have been classified by the Centers for Disease Control and Prevention (CDC) as variants of interest, variants of concern, and variants of high consequence. Three […]

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