Shanghai reported one local asymptomatic COVID-19 case on Friday.

The new infection case was found in Putuo district. A total of 83 primary close contacts and 52 secondary contacts have been quarantined and tested, and the residential compound where the case was found has been locked down.

As the city's outbreak has been put under control, designated hospitals for COVID-19 treatment are returning to normal service, said Zhao Dandan, deputy director of Shanghai Health Commission. Altogether 33 out of the 45 hospitals that had been designated to treat COVID-19 patients have been closed and disinfected and are being evaluated for the resumption of receiving normal patients, Zhao said.

Two municipal-level designated hospitals and five district-level hospitals have already resumed normal operations, to be followed by another seven district-level hospitals next week, Zhao added.

To prevent a rebound of the outbreak, residents in Shanghai are required to take a least one COVID-19 test per week until July 31 as mandated by the city's health commission earlier.