Coronavirus

The vaccine's efficacy was highest in the U.S. and the lowest in South Africa, where a new variant is infecting people.

People who have schizophrenia may be two to three times more likely to die from COVID-19, study suggests.

You might even consider wearing two masks instead of one.

The case is unusual because the woman had not been previously hospitalized with COVID-19 or put on a ventilator.

Animal "reservoirs" may pose a risk to humans down the road.

There's about a 2.5 per 1 million chance of developing a severe allergic reaction to Moderna's coronavirus vaccine.

COVID-19 vaccines are still expected to work against the new variant.

All that sanitizer people have been using since the start of the COVID-19 epidemic has led to more than just dry hands and eye-watering smells: It's nearly blinding some children.

The study also found that the virus can spread more than 6 feet (2 meters) in just seconds.

The U.S. has now tallied more than 24.2 million cases and more than 400,000 deaths.

The incoming CDC director has a lot of work to do, and she knows it.

A new coronavirus variant has been found in multiple California outbreaks, but scientists aren't yet sure whether it's more transmissible than other strains.

Black and Latino populations are disproportionately affected.

Strict measures will be needed to prevent it from taking over.

This strain quickly became the dominant coronavirus variant in Columbus, Ohio.

One day, the pandemic will end. Scientists don't know how that finale will play out but a new model offers a teaser.

At least two of the gorillas have tested positive.

A little over a year after the World Health Organization first announced a string of mysterious illnesses, the agency will travel to their point of origin to investigate how it all started.