Research shows that a new variant of SARS-CoV-2, which is now the dominant form of the virus, is more infectious in cell cultures. However, clinical data suggest that the variant does not cause more severe illness. All viruses mutate, and…
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The new coronavirus may spread more easily in crowded homes
A study in New York City revealed a threefold higher risk of infection among pregnant women living in neighborhoods with the most crowded households. Poverty and unemployment also appeared to increase the likelihood of infection. SARS-CoV-2, which is the coronavirus…
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Temperature has ‘modest’ effect on SARS-CoV-2 transmission rates
A new study finds that warmer temperatures are associated with lower rates of SARS-CoV-2. However, the researchers say that the effect is modest and warn against the relaxation of containment measures. Some viruses display seasonal behavior. Influenza cases, for example,…
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