Prime Highlights:
Nine confirmed measles cases in the Grand Erie Public Health region (Haldimand-Norfolk and Brantford-Brant), reported between January 7-21, 2025.
Outbreak linked to three source cases, with potential exposures at public locations such as restaurants, schools, and hospitals.
Measles remains highly contagious, capable of spreading through airborne transmission.
95.5% of 17-year-olds in Brantford-Brant are vaccinated, but only 76.2% in Haldimand-Norfolk.
Key Background:
Nine cases of measles have been confirmed across the Grand Erie Public Health (GEPH) region, spanning Haldimand-Norfolk and Brantford-Brant. The cases, reported between January 7 and 21, include eight in Haldimand and Norfolk counties and one in Brantford-Brant. The outbreak is linked to three source cases, and the health unit is actively tracing potential exposures to prevent further spread.
Measles was officially declared eliminated in Canada in 1998, but the virus can still be introduced through travelers who have been to regions where the disease is prevalent. Dr. Theresa Tam, Canada’s Chief Public Health Officer, has previously warned that unvaccinated individuals are at risk if they come into contact with imported cases. Measles is one of the most contagious viruses, capable of remaining airborne for extended periods, increasing the risk of transmission even in crowded spaces.
To mitigate the spread, GEPH is notifying individuals who may have been exposed in public places, including restaurants, schools, and hospitals, during specific timeframes. People exposed are advised to contact their healthcare provider, particularly those who are pregnant, immunocompromised, or unvaccinated.
In response to the outbreak, the health unit is assessing the immunization records of students in the affected areas. Parents who have not reported vaccinations will receive suspension orders by early February as part of the Immunization of School Pupils Act (ISPA). Public health officials are working to raise vaccination rates to protect students and the broader community from further outbreaks.
