COVID-19 was third leading cause of death in the United States in both 2020 and 2021

COVID-19 was the third leading cause of death in the United States between March 2020 and October 2021, according to an analysis of national death certificate data by researchers at the National Cancer Institute, part of the National Institutes of Health. The study appears July 5 in JAMA Internal Medicine. During…

The Concept of Classical Herd Immunity May Not Apply to Covid-19

There has been speculation about when in the coronavirus disease 2019 (COVID-19) pandemic we will be able to live with the virus in a manner that does not disrupt most peoples’ lives. Much of this discussion has focused on herd immunity thresholds. As commonly understood, herd immunity thresholds are reached…

Americans keep getting reinfected with COVID-19 as new variants emerge, data shows

This means that getting the pandemic under control is that much harder, even if cases are generally not severe.

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