Fifteen locally transmitted COVID-19 infections and 27 local asymptomatic COVID-19 carriers were reported in Chengdu, Sichuan province, on Thursday, according to the municipal health commission on Friday.

Five of the 15 cases were previously reported as asymptomatic, said Yang Xiaoguang, head of the commission, during a news conference.

From July 15 — when the latest round of the pandemic started — until Thursday, 158 total local COVID-19 cases have been identified, with 73 asymptomatic cases, he said.

As the cases of this round of pandemic are mainly concentrated in the city's Chenghua district, the district issued a notice on comprehensively strengthening social control.

Residential quarters with positive cases in Fuqing Road Street will be closed, and food and other services will be provided to them. In low-risk regions, each household can send one member to buy necessities once a day. All control measures will last for five days, and then will be adjusted in accordance with conditions, the city government said.

Yuan Shunming, head of the Chenghua district government, said that after the measures were released the district contacted relevant supply enterprises to ensure adequate supplies, as well as stable prices.

The district also prepared vegetables, meat, food staples and other things for residents. Community staff members, volunteers and delivery personnel have been asked to deliver them, he said.