A child takes the nucleic acid test at a testing post set up at a primary school in Dongxihu District in Wuhan, central China's Hubei Province, May 15, 2020. Wuhan will arrange 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. The decision was made as the virus-ravaged city continued to report daily increases of asymptomatic infections, which raised concerns among the public. (Xinhua/Xiao Yijiu)

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.