Study finds odd clustering of distant worlds is due to selection bias, not an unseen planet’s gravity
Worrisome variant reduces efficacy to less than 50% in South Africa
Distinctive intestines mold feces into sharp-cornered poop
Eli Lilly reports up to 80% reduction in risk for nursing home residents
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) incidence peaked in Manaus, Brazil, in May 2020 with a devastating toll on the city's inhabitants,...
Virologists, evolutionary biologists clash over risks
Compared with nasal swabs, saliva tests may better reflect infection deep in the lungs
North America’s “top dog” traveled a lonely evolutionary path
With an efficacy of more than 70%, the Sinovac vaccine could help Brazil slow the devastating toll COVID-19 is taking on the country
In mice, both pain and fear can be transferred by short social contact from one animal to a bystander. Neurons in a brain region called the...