Once dismissed by most public health experts and government officials, the hypothesis that COVID-19 leaked from a Chinese lab is now receiving scrutiny under a new U.S. investigation...

The British government says three-quarters of the adult U.K. population has received at least one dose of a coronavirus vaccine...

The world’s leading COVID-19 vaccines may offer lasting protection that diminishes the need for frequent booster shots...

The U.K. has authorized for use another coronavirus vaccine amid growing concerns about a rise in new infections as the variant of the virus first identified in India spreads around the country...

The inaugural harvest of genetically modified salmon began this week after the coronavirus pandemic delayed the sale of the first such altered animal cleared for human consumption in the United States...

Facebook says it will no longer remove claims that Covid-19 is man-made or manufactured from its apps...

People have unwittingly had their online posts or pictures exploited to spread misinformation about COVID-19 in recent months...

A California condor egg has hatched in Northern California’s wild, the newest member of Pinnacles National Park’s recovery program for the endangered species...

About 8% of Americans who have received one dose of either the Pfizer or Moderna COVID-19 vaccines have not returned for their second shot...

A new European Union study finds that the two-decade old legislation on Genetically Modified Organisms should be revamped, a process environmentalists claim will open the door to a new generation of b...