China's central Henan Province reported 41 local infections of COVID-19 on Sunday, 40 of which were formerly categorized as asymptomatic cases in the capital city of Zhengzhou, according to the provincial health authorities on Monday.

Four new asymptomatic cases were also reported in Zhengzhou.

Henan has confirmed 90 cases of local infections and 51 asymptomatic cases in the new round of COVID-19 outbreak since July 31.