(AP) — The Centers for Disease Control and Prevention says an outbreak of hepatitis A linked to a frozen berry mix sold at Costco has grown to 87 people with illnesses in eight states.

The CDC said Tuesday that illnesses have been reported in Arizona, California Colorado, Hawaii, Nevada, New Mexico, Utah and Washington.

Townsend Farms of Fairview, Ore., last week recalled its frozen Organic Antioxidant Blend, packaged under the Townsend Farms label at Costco and under the Harris Teeter brand at those stores. So far the illnesses have only been linked to the berries sold at Costco.

Hepatitis A is a contagious liver disease that can last from a few weeks to a several months. Vaccination can prevent illness if given within two weeks of exposure.