Measles, a vaccine-preventable illness once declared eliminated in Canada, has made a troubling return in 2024 and 2025. With confirmed cases now reported across several provinces—and the continued movement of people through international travel—this highly contagious virus is proving that it can resurface quickly when public health defenses wane.
At Intrepid Health, we’re committed to helping you and your family stay safe with timely updates, access to vaccines. If you are looking fir family doctor you can visit our walk-in clinic in Mississauga for expert support. Here’s what you need to know to stay protected during the current outbreak.
What Is Measles?
Measles is a highly contagious viral infection caused by the measles virus. It spreads through respiratory droplets—from coughing, sneezing, or even breathing near others. The virus can linger in the air or on surfaces for up to two hours, making it easy to transmit in crowded settings.
Once exposed, up to 90% of unvaccinated people will become infected. The disease is not just a childhood illness—it can affect people of all ages, especially those without adequate immunity.
Common Symptoms Include:
- High fever (often over 38.5°C or 101°F)
- Cough and runny nose
- Red, watery eyes (conjunctivitis)
- A blotchy red rash that usually starts on the face and spreads down the body
- General fatigue, irritability, and body aches
Symptoms typically appear 7–14 days after exposure, and the infected person is contagious from about 4 days before to 4 days after the rash appears.
Why Is Measles Making a Comeback?
Measles was declared eliminated in Canada in 1998, thanks to high vaccination coverage. However, several factors have led to its resurgence:
- Declining Vaccination Rates: Growing misinformation and vaccine hesitancy have led to fewer children receiving routine immunizations. In some communities, coverage has fallen below the 95% threshold needed for herd immunity.
- International Travel: Measles remains endemic in many countries. Travelers can unknowingly bring the virus into Canada, triggering outbreaks, especially in under-immunized areas.
- Pandemic Disruptions: COVID-19 led to delays in routine childhood vaccinations, leaving more people—especially young children—vulnerable.
Why Measles Is So Dangerous
While some people recover without complications, measles can be life-threatening, especially for young children, pregnant individuals, and those with weakened immune systems.
Serious complications include:
- Pneumonia (leading cause of measles-related death in children)
- Encephalitis (brain swelling, which can lead to seizures, hearing loss, or long-term disability)
- Dehydration and malnutrition due to severe diarrhea
- Pregnancy complications, including miscarriage and premature birth
In rare cases, a fatal degenerative brain disorder called subacute sclerosing panencephalitis (SSPE) can develop years after infection.
How You Can Protect Yourself and Others
The good news: measles is preventable. Here’s how you can reduce your risk and help prevent the spread:
✅ Get Vaccinated
The MMR (measles, mumps, rubella) vaccine is the best defense. It’s over 97% effective after two doses. Most children in Canada receive the first dose at 12–15 months and the second at 4–6 years. If you’re unsure about your immunization status—or if you were born after 1970 and may have received only one dose—contact your healthcare provider to check your records or arrange a booster.
✅ Know the Symptoms and Act Early
If you or your child develops a fever, rash, and cold-like symptoms, stay home and call your doctor or public health unit before visiting a clinic. This helps prevent further transmission in waiting rooms or other public settings.
✅ Stay Informed
Check local public health websites and school or daycare notices for updates on current measles activity. Be especially alert if there are confirmed exposures in your area.
Additional Tips for Travelers
- Before international travel, ensure you and your children are fully vaccinated.
- Infants as young as 6 months can receive an early MMR dose if traveling to areas with outbreaks (this dose won’t count toward the two standard doses and will need to be repeated later).
- If exposed to measles and unvaccinated, post-exposure vaccination or immune globulin may reduce severity if given within a few days.
We’re Here to Help
Intrepid Health is dedicated to keeping our community informed and protected during public health outbreaks. We offer timely updates, preventive care guidance, and access to professional medical support. Knowing what to watch for and when to seek care can make a meaningful difference. Book your appointment today—don’t wait until a health concern becomes urgent.
