Contagious case of measles reported at Montreal's airport

A new measles case has been reported by Montreal's public health authority. The health authority noted that a child with measles was present in Montreal-Trudeau International Airport late Friday and in the Sainte-Justine hospital early Saturday while still contagious.

Officials are asking individuals who may have been in contact with the child to monitor for symptoms and seek preventive treatment if unvaccinated. Public health guidance focuses on vigilance and potential vaccination for those at risk.

Context from Quebec and Canada shows recent measles activity, with the province’s latest outbreak ending in August after 28 cases. Federal data indicates 1,121 measles cases in Canada as of September 26 of this year.

The announcement comes amid Canada’s status change in November 2025, when the country lost its measles-free designation that had stood since 1998, after health authorities confirmed ongoing transmission of the same virus strain within the country for more than a year.