SARS-CoV-2

Almost 7.1 million COVID-19 deaths had been reported to the World Health Organization as of August 10, 2025.

Why we still don’t know where COVID-19 came from. And why we need to find out.

By Gustavo Palacios, Adolfo García-Sastre, David A. Relman | Analysis, Biosecurity

This picture, taken on November 27, 2018, shows biologist and summit chair David Baltimore (center right) of the California Institute of Technology speaking at a press conference during the Second International Summit on Human Genome Editing in Hong Kong. (Getty Images/AFP)

Caltech’s David Baltimore discusses the debate over origins of SARS-CoV-2

By Lori Dajose | Biosecurity

Members of the World Health Organization (WHO) team investigating the origins of the COVID-19 coronavirus arrive by car at the Wuhan Institute of Virology on February 3. (Photo by HECTOR RETAMAL/AFP via Getty Images)

The origin of COVID: Did people or nature open Pandora’s box at Wuhan?

By Nicholas Wade | Biosecurity, Investigative Reporting

This scanning electron microscope image shows SARS-CoV-2 in yellow.

Did the SARS-CoV-2 virus arise from a bat coronavirus research program in a Chinese laboratory? Very possibly.

By Milton Leitenberg | Biosecurity