Where and when the Covid-19 pandemic began — in Wuhan, China in late 2019 — is well known. How it began is a matter of heated controversy. There are two competing hypotheses, one of which is hindering ...

Chinese virologist Shi Zhengli (L) is seen inside the P4 laboratory in Wuhan in this 2017 photo. The P4 epidemiological laboratory, part of the Wuhan Institute of Virology, is one of the world's ...

Last summer, Michael Imperiale, a University of Michigan virologist and 10-year member of the National Science Advisory Board for Biosecurity, published an essay on the need to “rethink” some basic ...

Alina Chan isn't saying the coronavirus definitely leaked from a lab in China. What she is saying is what more scientists have grown comfortable discussing publicly: There's no clear evidence either ...

The hypothesis that COVID-19 originated from a Chinese laboratory, rather than a naturally occurring jump from animals to human beings, received a major boost over the weekend. The Wall Street Journal ...

In an open letter published Thursday in Science, a group of 18 scientists called for a new investigation into the origin of the novel coronavirus SARS-CoV-2, arguing that “theories of accidental ...

Months after a World Health Organization investigation deemed it “extremely unlikely” that the novel coronavirus escaped accidentally from a laboratory in Wuhan, China, the idea is back in the news, ...