The products were sold under the brand name of Townsend Farms at two large chains: Costco stores in the west and Harris Teeter stores.

The latest count from the U.S. Centers for Disease Control (CDC) and Prevention is 87 people infected in eight states: Arizona, California, Colorado, Hawaii, Nevada, New Mexico, Utah and Washington. Of these, 36 have been hospitalized.

According to the CDC, Hepatitis A “usually occurs when an infected food handler prepares food without appropriate hand hygiene.” However, the source of this particular strain is still unclear, except that it probably did not originate in the U.S.