People who visited the Norfolk General Hospital in Simcoe on Tuesday may have been exposed to the measles virus.
Grand Erie Public Health said it may have happened between 4:10 p.m. and 6:40 p.m.
Anyone who was at the hospital between those hours are encouraged to monitor for symptoms and fill out a measles exposure form.
An ongoing list of other potential exposure sites is available on the health unit’s website.
Measles symptoms
Symptoms of measles include a fever, a red blotchy rash, red watery eyes and a cough, but it can also cause more serious complications including pneumonia and brain infections, leading to hospitalization.
Other symptoms can include ear infections, diarrhea, respiratory failure and encephalitis. Long-term complications can include blindness, deafness and brain injuries.