BEIJING (Reuters) – The city of Wuhan, the original epicentre of the new coronavirus outbreak in China, conducted 887,321 nucleic acid tests on May 20, the local health authority said on Thursday, compared with 856,128 a day earlier.

Wuhan kicked off a campaign on May 14 to look for asymptomatic carriers – infected people who show no outward sign of illness – after confirming on May 9-10 its first cluster of COVID-19 infections since its release from a virtual lockdown on April 8.

(Reporting by Ryan Woo; editing by Jason Neely)