The Chinese mainland on Thursday reported 5,646 locally transmitted confirmed COVID-19 cases, of which 5,487 were in Shanghai, according to the National Health Commission's report on Friday.
Of all the newly reported local confirmed cases, 5,125 were previously identified as asymptomatic infections.
Yesterday also saw 9,942 asymptomatic infections.
Shanghai reported 5,487 locally transmitted COVID-19 cases, 9,545 local asymptomatic infections and 52 deaths on Thursday, said the Shanghai Health Commission on Friday morning.
Of all the local infections, 5,062 confirmed patients were previously asymptomatic infections. Another 418 confirmed patients and 9,444 asymptomatic cases were detected during central quarantine, while the rest were found in the screening of high-risk people.