a tourist is seen blocking the sun with a fan at Shanghai, China, on July 6, 2023 as Shanghai issues an organge alert for continues heatwave and the temperature will likely continues or exceed in the ...

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 ...

Study reveals how specific mutations in the H5N1 virus enhance its ability to bind human receptors, underscoring the need for ongoing surveillance of emerging strains. Study: A single mutation in ...

The Indigenous peoples of the Bolivian highlands are survivors. For thousands of years they have lived at altitudes of more than two miles, where oxygen is about 35 percent lower than at sea level.