Measles exposure notice covers Toronto flight, Pearson terminal and Ajax ER

Durham Region Health Department has identified additional potential measles exposures linked to a confirmed case in an unimmunized Durham Region child who recently travelled internationally. The department advises anyone on Ethiopian Airlines flight ET552 on November 2–3, 2026, or at Toronto Pearson’s Terminal 1 or the Lakeridge Health Ajax-Pickering emergency department waiting room during specified November 3 times to monitor for symptoms until November 24.

According to the department, measles is highly contagious, and the virus can remain in the air or on surfaces for up to two hours.

The department identified these exposure settings and times:

• Ethiopian Airlines flight ET552, Addis Ababa to Toronto: November 2 at 11:32 p.m. East Africa Time to November 3 at 7:30 a.m. Eastern Standard Time.
• Toronto Pearson International Airport, Terminal 1, 6301 Silver Dart Dr., Mississauga: November 3, from 7:30 to 11 a.m. Eastern Standard Time.
• Lakeridge Health Ajax-Pickering emergency department waiting room, 580 Harwood Ave. S., Ajax: November 3, from 10:40 a.m. to 5 p.m.

The health department advises anyone potentially exposed to confirm that they and their family members have received two doses of measles vaccine, either MMR or MMRV. It says people born before 1970 likely had measles as children and are protected. Those unsure of their vaccination status should check with their health-care provider, according to the department.

Measles symptoms typically begin seven to 21 days after infection, the department says. Symptoms may include a fever of at least 38.3 C, cough, runny nose, red and watery eyes, sensitivity to light, and a red rash lasting four to seven days.

The department advises anyone who develops symptoms to stay home and avoid work or school. Before visiting a clinic or primary care provider, they should call ahead and report the possible measles exposure. The department also advises wearing a well-fitting mask during a medical assessment.

Infants younger than one, unimmunized pregnant people and people with weakened immune systems face an increased risk of complications, according to the department.

The health department is investigating and has followed up directly with known contacts in Durham Region.