BOISE, Idaho (KTVB) -- Costco Wholesale is offering free vaccines in their pharmacies for those who may have eaten berries contaminated with hepatitis A. On Monday, the Idaho Health and Welfare Department confirmed "Townsend Farms organic anti-oxidant blend" frozen berries were sold at Idaho Costco Stores. The CDC advises anyone who ate the berries in the last 12 to 14 days to contact their local health department to see if they need a vaccine.