Measles exposure warning for Pearson travellers and Ajax-Pickering ER visitors

Ontario health officials are warning of possible measles exposure after an unimmunized child in Durham Region tested positive on returning from an international trip. People on Ethiopian Airlines flight ET552 to Toronto, which landed Nov. 3, at Pearson's Terminal 1 between 7:30 a.m. and 11 a.m. that day, or in the Lakeridge Health Ajax-Pickering emergency waiting room between 10:40 a.m. and 5 p.m. that day should watch for symptoms until Nov. 24. Symptoms can appear seven to 21 days after exposure and include high fever, cough and runny nose. The Durham Region Health Department has followed up with known contacts.