All Shanghai districts will arrange massive community nucleic acid screenings every weekend through the end of July, the city's health commission announced on Wednesday.
Such weekend PCR (polymerase chain reaction) test has been mandatory for residents in districts that report any positive COVID-19 community case in the previous week.
During sample collection in these districts, temporary lockdown measures are in place, which are lifted immediately after the sample collection is completed, according to Zhao Dandan, deputy director of the commission.
Local residents have been required to take at least one nucleic acid test every week through the end of July. Otherwise their health code will turn yellow, preventing them from taking public transport or entering any public areas.
No lockdown measures will be conducted during the weekend PCR screening in districts that report no infections in the previous seven days.
