To determine whether multiple SARS-CoV-2 infections impact the risk for long COVID, Clouston and colleagues retrospectively studied data from 2,511 essential workers in New York, most of whom were ...

New evidence suggests that SARS-CoV-2 infection can lead to the rapid development of achalasia, a rare esophageal motility disorder. The etiology of achalasia is unclear. Studies have suggested an ...

New genetic analyses reveal that the bat virus ancestors of SARS-CoV-1 and SARS-CoV-2 likely circulated in Western China or Northern Laos just years before human outbreaks. Their rapid appearance ...

Unfounded claims about SARS-CoV-2’s origin continue to circulate, further complicating efforts to maintain a constructive, evidence-based public discourse.

SARS-CoV-2 continues to evolve new variants. One rises to the fore every six months or so, according to Peter Chin-Hong, a professor of medicine at the University of California, San Francisco, who ...