China has dismissed eight officials after pork from pigs infected with a “highly contagious virus” was found to have entered the market, state media said Monday.

The country’s latest food scandal was revealed in an investigation by state broadcaster China Central Television which said the annual revenue of the tainted pork was more than 20 million yuan.

The meat had come from slaughterhouses in the city of Gaoan in central Jiangxi province and had entered at least seven provinces in total, said the report, which was first broadcast Saturday.