Ontario’s large measles outbreak catches attention of New York public health officials

The measles outbreak in Ontario has reached such a concerning level that public health officials in New York state have issued a travel advisory including the province. The advisory urges residents to get vaccinated before visiting Ontario, emphasizing the proximity of the outbreak by stating, “Measles is only a car ride away!” The travel advisory, dated April 2nd, highlights the current measles outbreaks not only in the United States and Canada but also in several other countries including Yemen, Pakistan, India, and Thailand.

The New York State Department of Health warns that measles is a highly contagious virus, with around 90% of individuals becoming infected if they are not vaccinated. The ease with which measles can cross borders is emphasized, making it crucial for individuals to ensure they are protected. Canada’s measles outbreak, particularly in Ontario, is mentioned in the advisory, with over 600 confirmed and probable cases reported in the province as of April 2nd.

Public Health Ontario confirms a total of 655 measles cases in Ontario this year, with the majority being confirmed cases. The travel advisory stresses the importance of being fully vaccinated against measles before traveling to areas with outbreaks. It recommends ensuring immunizations are up to date with the MMR vaccine to protect against measles.

With the upcoming spring and summer travel season, the advisory warns that individuals who are not vaccinated can contract measles while traveling and spread it upon their return. The potential for large measles outbreaks is highlighted, especially among populations with low vaccination rates.

In a news release on April 2nd, N.Y. officials emphasize the seriousness of measles and the importance of being fully vaccinated at least two weeks before traveling. The release recommends two doses of the measles vaccine for immunization, as measles can lead to complications such as pneumonia and even death.

The release also mentions the increasing number of measles cases in the U.S. in 2025 compared to the previous year, with the majority of cases in New Mexico and Texas. The rise in vaccine misinformation and hesitancy, coupled with potential vaccine delays due to the pandemic, is acknowledged as contributing factors to the outbreak. The Department urges everyone to get the MMR vaccine to protect against measles.

Measles symptoms include fever, cough, runny nose, spots in the mouth, sore eyes, sensitivity to light, and a red rash. It is crucial for individuals to prioritize vaccination and stay informed about the measles outbreak to prevent further spread of the virus.