Most of the 390 cartons of ice cream tainted with the COVID-19 virus that entered the market in the North China municipality of Tianjin have been tracked down and recalled, the government said on Sunday.

Of that total, 372 cartons have been recalled, while authorities are still searching for the remaining 21 cartons.

Three samples of locally-made ice cream using New Zealand milk powder and Ukraine whey mist, under the local brand Daqiaodao, tested positive for coronavirus on Thursday. The government began tracing the batch of cartons sold in Tianjin. Authorities elsewhere were notified of sales in their areas.

A total of 2,187 people in the city who had close contacts with the ice cream were found from Thursday to Sunday and 2,122 of them have tested negative. They were put under quarantine on Friday.