Hundreds of deadly virus samples are missing from a laboratory in Australia, the Queensland government announced on Monday. The government has instructed Queensland Health — Australia’s public health ...

A Sept. 2 Instagram post (direct link, archive lin k) shows a screenshot of a post on X, formerly Twitter, which makes a claim about COVID-19 and the virus that causes it. "There is no new variant of ...

In early 2020, as the pandemic was looming, Dr. Anthony Fauci corresponded with a group of scientists about the possibility that the COVID-19 virus escaped from a lab in Wuhan, China. After a ...

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 ...

In what may be one of the most important HIV research breakthroughs in years, scientists have discovered a strikingly ...

WASHINGTON -- Dr. Anthony Fauci is refuting an unsubstantiated theory linking the origin of the novel coronavirus outbreak to a possible accident at a Chinese virology laboratory. Subsequently asked ...

A new analysis that began under the Biden administration is released by the C.I.A.’s new director, John Ratcliffe, who wants the agency to get “off the sidelines” in the debate. By Julian E. Barnes ...

The avian flu virus isolated from a hospitalized teenager in Vancouver has mutations in key areas that could help the virus spread more easily in humans, scientists say. There is no indication that ...

A Northwestern Medicine research lab has found a usually harmless virus in brain samples from Parkinson’s patients. The idea that Parkinson’s could be linked to a virus had been theorized for years, ...