OHA release - Health officials recommend those who were at location during times, dates consider vaccination if not immune - PORTLAND, Ore.—Oregon Health Authority (OHA) and Multnomah County health officials are warning the public about a location where people may have been exposed to measles.  People might have been exposed if they were at the following locations at these dates and times:  Randall Children’s Primary Care Clinic, 501 N. Graham St., Suite 250, Legacy Emanuel Medical Center, Medical Office Building 2, Portland, between 1:20 p.m. and 4:11 p.m., Tuesday, Aug. 25.  Randall Children’s Hospital Emergency Department waiting room, 2801 N. Gantenbein Ave., Portland, between 3:21 p.m. and 5:23 p.m., Friday, Aug. 28.  Legacy Mount Hood Medical Center emergency room waiting room and department, 24800 SE Stark St., Gresham, between 10:04 a.m. and 1:49 p.m., Sunday, Aug. 30.  People who were at these locations during these dates and times should check their vaccination records and monitor for signs and symptoms of measles. People born after 1957 who have not had measles and have not been vaccinated against measles should receive an MMR vaccine as soon as possible.  Families without a primary care provider can establish care at any of Multnomah County's seven primary care clinics or nine student health centers (based at high schools but open to anyone ages 5-18) by calling 503-988-5558 to make a new patient appointment.