American researchers believe they've pinpointed when and where Covid first emerged — and it might not have been in China. Researchers from the University of California, San Diego, say they've ...

Since the start of the COVID-19 pandemic, there has been controversy surrounding the origins of SARS-CoV-2. New research from the University of California, San Diego (UCSD), School of Medicine ...

The initial spread of the virus that causes COVID-19 might have been accelerated by the wildlife trade, similar to what happened with the SARS outbreak in 2002, according to a study by UC San Diego ...

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 ...

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 ...