Five years after COVID-19 emerged, killing millions, costing trillions, and disrupting global life, we still don’t have a definitive answer as to the origins of the pandemic and the virus. This ...

Research on SARS-CoV-2 in zoo tigers, lions, and hyenas shows rapid viral evolution and adaptation, offering insights into cross-species transmission dynamics.

I was lucky — or unlucky — enough to have a front-row seat for one of the most surprising and frightening infectious disease outbreaks in recent history. I was working as a reporter in TIME’s Hong ...

By late December 2019, Chinese doctors were already encountering patients with a SARS-like illness. Internal alerts ...