The city reported 228 locally transmitted COVID-19 cases, 1,259 local asymptomatic infections, one imported case, one imported asymptomatic infection and seven deaths on Tuesday, said the Shanghai Health Commission on Wednesday morning.

Of all the local infections, 198 confirmed patients were previously asymptomatic infections. Another 30 confirmed patients and 1,259 asymptomatic cases were detected during central quarantine.

228 local cases

The first 30 patients tested positive during central quarantine while the rest 198 patients used to be asymptomatic infections.