BUENOS AIRES—After exhausting a significant amount of his intellectual energy in a series of company launches, a creatively tapped-out Peter Thiel announced Tuesday a new startup called “Frodo, But Ev...

The ruling upholds an Idaho law that bans daycares, businesses, governments and schools from mandating vaccines or “medical interventions.

Sequence found in Sars-CoV-2 had never been seen in another bat coronavirus until now

Study explains why good ventilation lowers transmission of Covid-19