People queue outside a shopping mall in Wuhan. (Photo: VCG)

The central Chinese city of Wuhan has completed the task of screening the entire city for COVID-19 infections, completing 9.89 million nucleic acid tests between May 14 and June 1, according to the local authority on Tuesday. 

"No confirmed cases have been found during the tests and a total of 300 symptomatic patients have been found in Wuhan while no cases of asymptomatic persons infecting others have been found," an official said. 

The city arranged nucleic acid tests for all residents who have not been tested before, in order to better know the number of asymptomatic cases of the novel coronavirus.