Dr Wen said China did that because 13% of its Covid-19 patients were asymptomatic. “If we miss those asymptomatic patients in the PCR testing, they can be a possible cause of (Covid-19) transmissions in future, ” he said in an interview here yesterday. The lockdown was lifted in different areas at different times; in Wuhan, the lockdown lasted 76 days, ending on April 8. Dr Wen said if it was possible, the PCR should be extended to workers and students before the economic and school activities resume. Nevertheless, all discharged Covid-19 patients in Guangdong were required to be quarantined for another 14 days, he said.

Source: thestar May 02, 2020 21:45 UTC