Coronaviruses are a large group of viruses that are common among animals. The viruses can make people sick, usually with a mild to moderate upper respiratory tract illness, similar to a common cold.

(CNN) — The genetic sequence of SARS-CoV-2, the virus that causes Covid-19, was submitted to a National Institutes of Health database two weeks before its release by the Chinese government, according ...

Yearly Covid-19 Booster Recommendations in Canada, Europe, and Australia. Although the rapid development of multiple Covid-19 vaccines in 2020 represents a major scientific, medical, and regulatory ...