Some Contra Costa residents and visitors may have been exposed to measles recently after a Contra Costa County resident visited several public venues while contagious. Health officials urge anyone who shows symptoms to contact their healthcare provider. "We have notified people in Contra Costa who were known to be in close contact to the case, but not every potential contact at a public venue can be identified. Anyone who visited the following locations during the indicated dates and times could have potentially been exposed to the measles virus and should check immunity status," said Paul Leung, Communicable Disease Programs Chief with Contra Costa Public Health. Information about measles is available online at cchealth.org/measles. Contra Costa County residents may also call 925-313-6740 for information. Additional Information