Pandemic

The FDA statement pours cold water on a theory that the novel coronavirus emerged outside China and was brought in on imported frozen food.

Scientists will vaccinate all the adults in a single city to see whether a COVID-19 vaccine will reduce cases.

For months, scientists have wondered whether past exposure to seasonal coronaviruses that cause common colds might prevent people from getting a severe case COVID-19.

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

Though the vaccine hasn't been tested in pregnant people, experts think that it's likely safe.

The recommendations for self-isolation — for people who test positive for COVID-19 — have not changed.

For the first time, close relatives of the novel coronavirus have been found outside China.

How did Americans celebrate the holidays during the influenza pandemic of 1918? With a lot of partying, turns out.

A new study suggests as early as September of last year, but some experts are skeptical.

The third wave of the pandemic may be much worse than the first two waves.