The Chinese mainland on Wednesday reported 222 confirmed local COVID-19 cases, of which 144 were in Shanghai, the National Health Commission said on Thursday.
Yesterday also saw 1,630 local asymptomatic infections.
Shanghai reported 144 locally transmitted COVID-19 cases, 1,305 local asymptomatic infections, one imported asymptomatic infection and five deaths on Wednesday, said the Shanghai Health Commission on Thursday morning.
Of all the local infections, 106 confirmed patients were previously asymptomatic infections. Another 38 confirmed patients and 1,303 asymptomatic cases were detected during central quarantine.