Doctors Warn: Measles Surge in Ontario Threatens Traveling Families
Measles Outbreak in Ontario: Cases Surge, Prompting Vaccination Urgency
Table of Contents
- Measles Outbreak in Ontario: Cases Surge, Prompting Vaccination Urgency
- Measles Cases Nearly double: Ontario Grapples with Largest Outbreak in Decades
- Understanding Measles: Symptoms, Risks, and Prevention
- Travel and Under-Immunization: Factors Contributing to the Outbreak
- Measles Cases on the Rise: Ontario Statistics
- Vaccination: The Key to Preventing Measles
- Canada’s Measles Eradication and the Resurgence
- Measles and Rubella Monitoring in Canada
- Measles Outbreak in Ontario: Your Questions Answered
Published:
Measles Cases Nearly double: Ontario Grapples with Largest Outbreak in Decades
Ontario is experiencing a critically important surge in measles cases, marking the province’s largest outbreak in almost 30 years. Public health officials are urging residents to take proactive measures, especially with March Break approaching, to prevent further spread of this highly contagious disease.
The rise in measles infections is a serious concern, prompting calls for increased vigilance and vaccination efforts across the province.
Understanding Measles: Symptoms, Risks, and Prevention
Measles is identified as a highly infectious disease characterized by symptoms such as coughing, runny nose, and a distinctive rash. Young children are especially vulnerable, with approximately one in ten requiring hospitalization following a diagnosis.
According to Dr. Patrick Galange,Associate Medical Officer of health at Halton region Public Health:
Measles is one of the most infectious diseases we’ve ever known. To put it into perspective, if you have measles and there were ten people around who weren’t vaccinated, nine out of those ten would get it. It’s a very contagious, infectious disease that quickly passes from person to person.
The infection can lead to severe complications, including pneumonia and encephalitis, and in some cases, blindness, deafness, or even death. pregnant women and immunocompromised individuals face heightened risks.
Travel and Under-Immunization: Factors Contributing to the Outbreak
Public health officials are particularly concerned about the spread of measles during March Break, a popular travel period for families. Increased travel, combined with under-immunization, contributes substantially to the outbreak.
Dr.Galange explains:
In addition to vaccine hesitancy, this large outbreak that we’re seeing is also because people are starting to travel again.People may be travelling who are underimmunized and visit somewhere where measles is more prevalent and end up bringing it back to Canada, wich spreads it to the non-immunized here.
Measles Cases on the Rise: Ontario Statistics
the number of measles cases has been steadily increasing in Ontario and Halton. The province averaged between 7 and 22 cases annually from 2013 to 2023. Though, cases surged to over 60 in 2024 and have already exceeded 100 in the first few months of 2025.
| Year | Number of Measles Cases in Ontario (Approximate) |
|---|---|
| 2013-2023 (Average) | 7-22 |
| 2024 | 60+ |
| 2025 (first Few Months) | 100+ |
Vaccination: The Key to Preventing Measles
Health officials emphasize that vaccination is the most effective way to prevent measles. Dr. Galange strongly advises:
Number one thing, get vaccinated. Any measles-containing vaccine is extremely safe,extremely well-studied and extremely effective at preventing people from getting measles.It’s a two-dose schedule, with the first dose being up to 95 per cent effective and the second can make you nearly 100 per cent safe.
Residents are encouraged to be aware of their vaccination status and report it to Public Health Halton, as Ontario lacks a central vaccine registry.
Canada’s Measles Eradication and the Resurgence
Canada declared measles eradicated in 1998. However, declining immunization rates have allowed the disease to resurface.
Dr. Galange notes:
Vaccine hesitancy is a big challenge.It’s always been floating around, but post-pandemic we’re seeing a lot more of it and the measles vaccine falls under that. People might feel more complacent since we don’t see it much anymore, but it’s a catch-22 because the reason we saw so little of it, was due to immunization. If we stop getting immunized, that’s going to change.
A decrease in second-dose measles vaccinations has been observed in Ontario as the onset of the COVID-19 pandemic.
Measles and Rubella Monitoring in Canada
As of 2025, Canada has reported 168 cases of measles (146 confirmed, 22 probable) and no cases of rubella. Canadians traveling abroad are advised to consult travel health notices for facts on areas with circulating measles or rubella.
This is a custom element
Measles Outbreak in Ontario: Your Questions Answered
Measles cases are surging in Ontario,prompting concerns and urgent calls for vaccination. Here’s a comprehensive Q&A to help you understand the situation, risks, and preventative measures.
Understanding the Measles Outbreak in Ontario
Q: What is the current situation regarding measles in Ontario?
ontario is experiencing a critically important surge in measles cases, marking the largest outbreak in nearly 30 years. Public health officials are actively urging residents to take preventive measures, particularly with increased travel during March Break contributing to the spread. Cases surged to over 60 in 2024 and have already exceeded 100 in the first few months of 2025.
Q: Why is there a measles outbreak now?
Several factors contribute to the measles outbreak in Ontario:
Under-immunization: Declining vaccination rates have allowed the disease to resurface.
Travel: Increased travel, especially during periods like March Break, can lead to the importation of measles from regions where it is more prevalent.
Vaccine Hesitancy: Post-pandemic, there has been a rise in vaccine hesitancy, affecting the measles vaccine uptake.
Measles: Symptoms, Risks, and Prevention
Q: What are the symptoms of measles?
Measles is characterized by:
Coughing
Runny nose
A distinctive rash
Q: How contagious is measles?
Measles is extremely contagious. According to Dr. Patrick Galange, Associate Medical Officer of Health at Halton Region Public Health, if ten unvaccinated people are around someone with measles, approximately nine of them will contract the disease.
Q: What are the potential complications of measles?
measles can lead to severe complications, including:
Pneumonia
Encephalitis (brain inflammation)
Blindness
deafness
Death (in some cases)
Pregnant women and immunocompromised individuals face heightened risks from measles.
Q: who is most at risk of measles complications?
Young children, pregnant women, and immunocompromised individuals are at the highest risk of developing severe complications from measles.
Q: How can measles be prevented?
Vaccination is the most effective way to prevent measles. A two-dose measles-containing vaccine is highly effective. The first dose is up to 95% effective, and the second dose can make you nearly 100% protected.
Q: What should I do if I think I have measles?
consult a healthcare professional instantly to confirm diagnosis and receive appropriate treatment. it is indeed vital to isolate yourself to prevent further spread if you suspect you have measles.
Vaccination Facts
Q: How effective is the measles vaccine?
The measles vaccine is highly effective:
One dose is approximately 95% effective.
* Two doses provide nearly 100% protection.
Q: What does dr. Galange say about measles vaccination?
Dr. Galange strongly advises getting vaccinated,emphasizing that measles-containing vaccines are extremely safe,well-studied,and effective at preventing measles.
Q: What is the recommended measles vaccine schedule?
It’s a two-dose schedule, check with your healthcare provider for specific timing recommendations.
Q: How can I check my vaccination status in Ontario?
Contact Public Health Halton or your healthcare provider to inquire about your vaccination records. Ontario lacks a central vaccine registry, so you may need to gather records from multiple sources.
Measles in Canada
Q: When was measles declared eradicated in Canada?
Canada declared measles eradicated in 1998.
Q: Why has measles resurfaced in Canada?
Declining immunization rates have allowed the disease to resurface. Vaccine hesitancy and decreased second-dose vaccinations have also played a role.
Q: Are there any other reported cases of measles in Canada?
As of 2025, Canada has reported 168 cases of measles (146 confirmed, 22 probable).
Q: What is the Canadian goverment’s advice for travelers regarding measles?
Canadians traveling abroad are advised to consult travel health notices for information on areas with circulating measles.
Measles Cases in Ontario: A Statistical Overview
| Year | Number of Measles Cases in Ontario (Approximate) |
| ————————- | ————————————————– |
| 2013-2023 (Average) | 7-22 |
| 2024 | 60+ |
| 2025 (first Few Months) | 100+ |