In 2025, Canada has become the epicentre of the largest measles outbreak in North America — a startling development for a country where the disease was once considered eliminated. With over 3,800 cases reported, mostly among infants and unvaccinated children, the outbreak has now surpassed even the United States, despite Canada’s smaller population.

At Orleans Family Health Clinic, we believe this is a wake-up call to ensure our community remains vigilant, informed, and protected.

Why Is This Happening?

Measles is one of the most contagious viruses in the world. It spreads rapidly through airborne droplets and can cause serious complications — including pneumonia, brain swelling, and even death. The MMR vaccine (measles, mumps, rubella) is 97% effective, yet vaccine hesitancy has grown significantly since the COVID-19 pandemic. Misconceptions and distrust — often amplified online — have resulted in declining immunization rates, particularly in certain communities.

In Ontario, the outbreak began in late 2024 after an individual contracted measles at a large gathering and returned to a community where vaccination uptake was historically low. As cases spread, mobile clinics and public health teams worked to identify and treat those affected. But the virus had already taken hold, especially in areas like southern Ontario and Alberta.

How You Can Protect Yourself and Your Family

At Orleans Family Health Clinic, our team of family physicians, nurses, and pharmacists strongly urge all patients to review their immunization records and ensure they are up to date. The key points are:

• Children should receive the first MMR dose at 12 months of age, and a second dose between ages 4–6.
• Infants travelling to outbreak areas may be eligible for earlier vaccination—speak with one of our clinicians.
• Adults unsure of their vaccination status should consult with our medical team about catch-up doses.
• Pregnant individuals and immunocompromised patients should be especially cautious — and benefit from community protection (herd immunity).

What We’re Doing at OFHC

Orleans Family Health Clinic is committed to proactive public health. Here’s how we’re addressing the measles outbreak:

• Vaccination appointments available on short notice
• MMR vaccine counselling provided by our pharmacists and physicians
• Family check-ins and immunization reviews during routine visits
• Clear communication with our community through staff and front desk team members

If you or a family member hasn’t had your MMR vaccine — or if you’re unsure — please book a consultation today.

This outbreak is a reminder that diseases we thought were behind us can return if we let our guard down. Protecting yourself also protects those who can’t be vaccinated, like newborns and people with certain medical conditions.

Let’s keep our community safe — together.

Disclaimer: The medical information on this site is provided as an information resource only and is not to be used or relied on for any diagnostic or treatment purposes. This information does not substitute for professional diagnosis and treatment. Please do not initiate, modify, or discontinue any treatment, medication, or supplement solely based on this information. Always seek the advice of your healthcare provider first. Full Disclaimer.