Five measles cases confirmed in southern Manitoba linked to Ontario outbreak

Manitoba public health officials are warning residents about five confirmed measles cases in a southern Manitoba household tied to the Ontario measles outbreak. 

All cases involve family members exposed to the virus during the Ontario trip and they are isolating at home.  

The outbreak in Ontario has reached 81 cases (54 confirmed, 27 probable) between 2024 and 2025. 

Manitoba Health, Seniors, and Long-Term Care is urging anyone who visited the following locations to monitor for symptoms. 

The Reinland Mennonite Church in Winkler during Sunday services on January 26 (9:15 am to 12:30 pm).

The Health Sciences Centre in Winnipeg on January 31 in specific areas, the first-floor labs and waiting rooms (11:30 am to 2 pm), Orange Bison Zone near Guildy’s Eatery (noon to 3 pm), and the fourth-floor cardiology clinic (1 pm to 4 pm).  

Officials advise checking measles vaccination records. 

Those born in 1970 or later, and unvaccinated or never infected, should limit contact with others from five to 21 days after exposure and get vaccinated. 

The measles vaccine (MMR or MMRV) is not recommended for infants under six months, pregnant people, or those with weakened immune systems.  

Symptoms, appearing seven to 21 days after exposure, include fever, red eyes, runny nose, and a red rash spreading from the face. 

Severe cases can lead to pneumonia or brain swelling. 

Measles spreads easily through coughs or sneezes, with infection possible four days before and after a rash appears.  

Manitoba’s vaccine program offers two doses for children, with one dose at age one and another between four and six years old. 

Anyone with symptoms should isolate, call health providers, and mention possible measles exposure. 

Public health continues to investigate and may update exposure sites.