The Chinese mainland on Thursday registered 18 new COVID-19 cases, all from overseas, the National Health Commission announced on Friday.

No deaths related to the disease were reported on Thursday, and 15 COVID-19 patients were discharged from hospitals, the commission said. A total of 403 asymptomatic patients remain under medical observation.

The COVID-19 tally on the Chinese mainland stands at 85,747 infections, with 4,634 fatalities.

The total confirmed infections in the Hong Kong and Macao special administrative regions and the Taiwan region are as follows:

Hong Kong: 5,280 (5,019 recoveries, 105 deaths)

Macao: 46 (46 recoveries)

Taiwan: 548 (497 recoveries, 7 deaths)