Peel Public Health investigating a confirmed case of measles

BRAMPTON, ON (May 7, 2025) – Peel Public Health (PPH) is investigating a new case of measles.

The public may have been exposed on May 3 during the following flight or at this location:

• Air Canada, Flight AC540 Seattle to Toronto (7:28 PM ET arrival time)
• Terminal 1, Pearson International Airport (6301 Silver Dart Dr., Mississauga, ON L5P 1B2) between 7:28 PM ET and 10:00 PM ET

Peel Public Health directly contacts people who were at exposure sites if possible. PPH advises anyone who was at these sites or thinks they have been exposed to the measles virus to do the following:

• Check their immunization record to confirm they and their family members are up-to-date with their measles vaccinations (MMR or MMRV). Those who are unsure can check with their health care provider. Two doses are generally recommended for anyone born in or after 1970. In general, those born before 1970 are considered protected against measles.
• Anyone experiencing symptoms should contact their health care provider, or if not available, Peel Public Health as soon as possible to get advice. Do not attend work or school. Those concerned about symptoms should call their health care provider before going to see them to inform them they may have been in contact with someone who has measles.

Measles is a highly contagious disease that spreads easily to those who are not immunized or have not previously had measles. Infants under one year of age, unimmunized pregnant people, and people with weakened immune systems are at increased risk of complications.

Measles symptoms begin 7-21 days after infection and may include:

• High fever
• Cough
• Runny nose
• Red, watery eyes (conjunctivitis, i.e. pink eye), sensitivity to light
• Red rash lasting 4 to 7 days
   

The situation in Peel

• So far in 2025, there have been 6 confirmed cases of measles in Peel.
• In 2024, Peel had 3 confirmed cases of measles.
• Of Peel’s 6 cases, 3 were related to travel, and 3 were from close contacts or community spread. Peel’s cases are not known to be connected to the current multi-jurisdictional measles outbreak in Ontario.
• Peel Public Health continues to monitor the situation and investigates every new case.

For questions, call Peel Public Health at 905-799-7700 / 1-888-919-7800 (toll-free). Phones are answered from 8:30 a.m. to 4:30 p.m. Monday to Friday.

For more information about the measles situation across Ontario, please visit Measles Exposures in Ontario | Public Health Ontario.