Peel Public Health has issued an urgent notice after a confirmed measles case transited through Toronto Pearson’s Terminal 1 on June 13. The traveller arrived on Ethiopian Airlines flight ET552 from Addis Ababa and transferred to Air Canada flight AC410 to Montreal, spending approximately five hours air-side between 09:00 and 14:00 local time. The alert, released late Sunday night (June 21), advises all passengers and airport workers who were in Terminal 1 during that window to monitor for symptoms until July 4. Measles is highly contagious and can remain airborne for up to two hours after an infected person leaves an area. Although Canada eliminated endemic measles in 1998, importations tied to international air travel continue to spark concern—particularly for infants and immuno-compromised travellers who cannot be vaccinated. Public Health Ontario reports 27 cases so far in 2026, already surpassing the annual total for 2025.
For mobility and travel-risk managers the incident is a timely reminder to verify employees’ immunisation records before global assignments.
![Health Alert: Measles Exposure Reported at Toronto Pearson’s Terminal 1]()
Platforms such as VisaHQ can streamline that pre-trip checklist by combining country-specific visa needs with up-to-date vaccination and health advisories; the company’s Canada portal (https://www.visahq.com/canada/) even lets organisations schedule MMR boosters for staff and receive automated compliance alerts, reducing administrative gaps before departure.
Travellers who transited Pearson on June 13 and remain unvaccinated should receive post-exposure prophylaxis within six days and avoid contact with high-risk populations. Employers may wish to offer on-site MMR booster clinics or reimburse pharmacy vaccination fees. Airlines operating out of Pearson have begun proactive contact-tracing, but privacy rules mean notification lists may be incomplete; companies with group bookings should not assume employees will receive individual alerts. Travel insurers are also reminding policy holders that medical quarantine costs are only covered if immunisations were up to date per destination guidelines. The episode follows similar alerts at U.S. airports this month and reinforces calls for digital vaccination certificates that can be validated at check-in—a proposal now under review by Transport Canada.
For mobility and travel-risk managers the incident is a timely reminder to verify employees’ immunisation records before global assignments.
Platforms such as VisaHQ can streamline that pre-trip checklist by combining country-specific visa needs with up-to-date vaccination and health advisories; the company’s Canada portal (https://www.visahq.com/canada/) even lets organisations schedule MMR boosters for staff and receive automated compliance alerts, reducing administrative gaps before departure.
Travellers who transited Pearson on June 13 and remain unvaccinated should receive post-exposure prophylaxis within six days and avoid contact with high-risk populations. Employers may wish to offer on-site MMR booster clinics or reimburse pharmacy vaccination fees. Airlines operating out of Pearson have begun proactive contact-tracing, but privacy rules mean notification lists may be incomplete; companies with group bookings should not assume employees will receive individual alerts. Travel insurers are also reminding policy holders that medical quarantine costs are only covered if immunisations were up to date per destination guidelines. The episode follows similar alerts at U.S. airports this month and reinforces calls for digital vaccination certificates that can be validated at check-in—a proposal now under review by Transport Canada.
