Covid-19 Pandemic Timeline Fast Facts

Here's a look at the coronavirus outbreak, declared a worldwide pandemic by the World Health Organization. The coronavirus, called Covid-19 by WHO, originated in China and is the cousin of the SARS virus.

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. Coronavirus symptoms include a runny nose, cough, sore throat, possibly a headache and maybe a fever, which can last for a couple of days.

WHO Situation Reports

Coronavirus Map

CNN's early reporting on the coronavirus

December 31, 2019 - Cases of pneumonia detected in Wuhan, China, are first reported to WHO. During this reported period, the virus is unknown. The cases occur between December 12 and December 29, according to Wuhan Municipal Health.

January 1, 2020 - Chinese health authorities close the Huanan Seafood Wholesale Market after it is discovered that wild animals sold there may be the source of the virus.