Huron Perth Public Health (HPPH) is advising the community of another measles exposure at Stratford General Hospital.
The exposure occurred in the emergency department waiting room on Saturday, April 19 from around 9:15 p.m. to 11:40 p.m.
This was the second possible exposure at the hospital over the last week.
The Health Unit says anyone who was in the vicinity needs to monitor for measles signs and symptoms for 21 days after exposure.
If you were present and haven't received measles vaccination or are at high risk of severe measles illness, contact HPPH at 1-888-221-2133 ext. 3299.