Wuhan, one year after coronavirus lockdown

FILE PHOTO: A child reacts while undergoing nucleic acid testing in Wuhan, the Chinese city hit hardest by the coronavirus disease (COVID-19) outbreak, Hubei province, China May 16, 2020. REUTERS/Aly Song

(Reuters) - China locked down the central city of Wuhan a year ago at the start of the Lunar New Year, the country's biggest holiday, as it battled to contain the spread of a novel coronavirus.

Following is a timeline of key events since the first cases of the virus were detected in the city of 11 million residents in Hubei province.