Health

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

The man spent 22 days in the hospital with a severe infection.

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

Women who use marijuana while they are trying to conceive may be less likely to get pregnant.

Here's another reason to cook your meat and take care around cat litter.

At least two of the gorillas have tested positive.

The odd DNA may play a role in cancer progression.

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.

A key mutation increase the ability of the virus to bind to human cells, but Pfizer's vaccine still works against it.

The researchers tested participants' blood samples for antibodies against SARS-CoV-2.

On average, less than six genetic mutations set the twins apart.

A new study highlights specific mutations that raise this concern.

Overall, the benefits of the vaccine outweigh the potential risks, the CDC said.

A coronavirus variant identified in South Africa may not be as vulnerable to COVID-19 vaccines as other strains, some scientists say.

The U.K. authorized the shots for emergency use last week.

To protect endangered black-footed ferrets from COVID-19, scientists in Colorado have injected a major captive breeding population with an experimental vaccine.

Here are just some of the ways COVID-19 changed the world in 2020.