Measles exposure linked to flight from Toronto Pearson Airport in Mississauga, Ontario

A highly contagious virus has sparked concern as Toronto Public Health (TPH) investigates a recent case of measles linked to international travel.

The public may have been exposed to the virus on Turkish Airlines Flight TK17 (Istanbul to Toronto), which arrived at Toronto Pearson International Airport, Terminal 1, at 5:30 p.m. on Wednesday, January 22, 2025.

Measles is an airborne virus that spreads when an infected person breathes, coughs, sneezes, or talks.

The virus can remain in the air or on surfaces for up to two hours. Infection occurs when contaminated air is inhaled or infected surfaces are touched, followed by contact with the eyes, nose, or mouth.

TPH is urging anyone potentially exposed to check their vaccination status. Measles is vaccine-preventable, with immunizations typically given at 12 months of age and a second dose administered between four and six years old. Those born in 1970 or later require two doses of the vaccine for complete protection unless they have previously had the virus.

People born before 1970 may have natural immunity due to prior exposure. Those uncertain about their vaccination status can safely receive the Measles, Mumps, and Rubella (MMR) vaccine or take a blood test to confirm immunity.

Residents are advised to monitor for symptoms until February 12, 2025. These may include fever, runny nose, cough, red eyes, a red rash starting on the face and spreading downward, and small blue-white spots inside the mouth and throat (Koplik spots).

If symptoms develop, individuals should contact a healthcare provider immediately. Calling ahead before visiting a clinic or hospital allows staff to prepare and prevent further spread.

Wearing a medical-grade mask, such as an N95, is recommended during medical assessments.

School-aged children can catch up on vaccinations through their primary healthcare provider or by booking an appointment at a TPH community clinic via www.tphbookings.ca. The MMR vaccine is free for eligible adults through primary care providers and select walk-in clinics.

For additional information about measles, visit the City of Toronto’s website: [Measles Fact Sheet](https://www.toronto.ca/measles-fact-sheet). Toronto Public Health encourages residents to stay informed, follow preventative measures, and take steps to protect themselves and their communities.