SHANGHAI: China reported on Friday (Jul 30) 64 new COVID-19 cases in the mainland for Jul 29, compared with 49 cases a day earlier, the health authority said.
The National Health Commission said in a statement 21 of the new infections were local cases, compared with 24 the previous day. There were no new deaths.
A majority of the local cases were reported in Jiangsu province, the authority said.
The province's capital city of Nanjing is currently facing an outbreak of the Delta variant that surfaced earlier this month.
The official Xinhua news agency reported that the source of the outbreak was inadequately protected airport staff who were cleaning planes after international flights.
Authorities have since conducted mass testing in the city, and closed the airport on Tuesday.
Two cases of the virus were also reported in Hunan province. One case was reported in Beijing.
The new patients in Hunan were reported after symptomless carriers outside the province were found to have attended a live performance at a theatre in the Zhangjiajie city on Jul 22. Local authorities deemed all spectators in the theatre from 6pm to 7pm on Jul 22 as high virus risk.
More than 2,000 people attended performances on Jul 22 and guests were seated at one seat intervals, a health publication run by state media the People's Daily said in a report on Wednesday.
China also reported 25 new asymptomatic patients, compared with 14 a day earlier.
As of Jul 29, mainland China had a total of 92,875 confirmed coronavirus cases, it said.
China's death toll from the coronavirus remained unchanged at 4,636.