SEATTLE (AP) — Snohomish County Health District officials have confirmed a case of measles in a child who visited the U.S. in June for a summer program.

KING-TV reports that child visited nine public places in King and Snohomish Counties between June 20 and 27, including a Walmart, a McDonald's, a Dairy Queen, the Providence - Monroe Clinic Pharmacy and the YMCA in Monroe.

Health officials say people who visited those businesses as well as a Wendy's and the Providence Regional Medical Center in Everett and the Redmond Medical Center and Swedish Pediatrics Redmond may have been exposed to the measles.

Health officials have been contacting impacted businesses and providers to alert them of potential exposures.

People who haven't been vaccinated and were at one of the locations during that timeframe are asked to call a health care provider.