The strategy was carried out after seven infections of the Delta variant were registered, after 15 months of not having registered any case in the town.
After the round of tests, 37 infections and 41 asymptomatic villagers were detected, the state news agency Xinhua said.
To carry out the operation, more than 28,000 health workers were deployed in 2,800 points.
Drones and bananas, this is the strategy in China to return elephants home