Measles exposure flagged at Montreal Children's Hospital ER

Montreal Children's Hospital says people in its pediatric emergency department on Jan. 1 between 12:18 p.m. and 11:01 p.m. may have been exposed to measles; the incubation period is reported as Jan. 6–22.

The Montreal Children's Hospital has issued a warning about a possible measles exposure in its pediatric emergency department. The hospital said the potential exposure occurred in Glen B Block, Level S1, on Jan. 1 between 12:18 p.m. and 11:01 p.m. Public health officials recorded Quebec's first measles outbreak in months in December 2025, with cases identified in Montreal. The hospital described measles as a highly contagious virus that spreads through the air and listed common symptoms. Known details: - The potential exposure timeframe is Jan. 1, 12:18 p.m. to 11:01 p.m., in the pediatric emergency (Glen B Block, Level S1). - The hospital reported the incubation period for anyone exposed as Jan. 6–22. - The hospital listed common measles symptoms as fever, cough, runny nose, conjunctivitis and a widespread rash. - The hospital reported that people are considered immune if they have received two doses of the measles vaccine or if they were born in 1970 or later. - The hospital asked that people who are not immune, whose immune status is uncertain, or who are immunocompromised contact their health-care provider or call Info‑Santé at 811, and noted exposed people should avoid contact with infants under one year, pregnant people and people with weakened immune systems. Summary: Officials reported a possible exposure in the pediatric emergency department on Jan. 1 and linked it to recent measles activity in Montreal. The hospital announced the incubation window for exposed individuals as Jan. 6–22 and asked those it described as non-immune or immunocompromised to contact a health-care provider or Info‑Santé (811); further public health follow-up was reported in connection with the December outbreak.