East Bay health leaders are warning about a possible measles exposure. Contra Costa County health leaders confirmed a case of the disease. They said a patient went to several public places while contagious. Dec. 17 or 19, they were at the Anthropologie in Walnut Creek. Dec. 18 they went to the Macy’s, Alo and Apple Store at Broadway Plaza. Dec. 21 they went to the Stat Med Urgent Care in Lafayette On Dec. 23 and 24, they were at the Kaiser Walnut Creek ER. If you were at these places, you may ha