Sanquan Food Co. Ltd., a Henan-based seller of frozen dumplings, announced Sunday that it had suspended the sale of products suspected of being contaminated with African swine fever — a virus that doesn’t infect humans but is highly fatal to pigs. The company did not say whether any of the potentially infected products were already on the market.

In the past six months, over 900,000 pigs have been culled in China to control the spread of African swine fever. On Jan. 9, a local government in Hunan province learned that three samples of Sanquan products had tested positive for the virus. And last Friday, an official in Gansu province told The Beijing News that products from Sanquan and 10 other domestic food manufacturers were found to be contaminated, prompting media outlets to express concerns about production line oversight.

This is not the first time Chinese food companies have caught the flu. In November of last year, sausages sold by WH Group — another Henan-based producer of pork products — were found to be carrying the swine fever virus. (Image: VCG)