A sign posted to the door of Sitka Medical Center on Thursday afternoon (KCAW/Rose) A health clinic in Sitka closed mid-day today (5-14-26) after a possible measles exposure.In a post on social media shortly after 2 p.m., the Southeast Alaska Regional Health Consortium (SEARHC) announced that the Sitka Medical Center would be closed for the remainder of the day, “out of an abundance of caution due to a potential measles exposure.” It said they …