York Region Public Health has reported a new case of measles in Thornhill, which is linked to an ongoing outbreak. This recent case marks the fifth confirmed instance connected to the outbreak that was declared on September 4, 2025.
Individuals who attended specific locations during the times listed by York Public Health may have been exposed to the virus. It is vital for anyone who thinks they might have been at risk to take immediate action.
Anyone who believes they might have been exposed should first verify that they have received two doses of the measles vaccine. If you were present at the listed locations and fall into a higher-risk category—such as being pregnant, caring for an infant under 12 months, or having a weakened immune system—you should call York Region Public Health right away. You may qualify for treatment aimed at preventing measles infection.
Additionally, residents are encouraged to visit york.ca/MeaslesReporting to fill out a brief contact follow-up survey. This survey will assist York Region Public Health in assessing the risk levels for those potentially exposed and help prioritize contacts at the highest risk of infection.
It is crucial for individuals to monitor themselves for symptoms associated with measles. If any symptoms develop, contacting York Region Public Health at 1-877-464-9675 ext. 77280 is imperative. This line is available seven days a week. Should you need to visit a healthcare professional, inform them in advance that you might have measles so that they can take necessary precautions during your visit.
Measles is recognized as a highly contagious viral infection that spreads rapidly through airborne transmission. Public health officials emphasize that the measles virus can survive in the air or linger on surfaces for up to two hours, making it particularly dangerous. Infants under one year of age, pregnant individuals, and those with compromised immune systems face a heightened risk for severe complications, which may include encephalitis, an inflammation of the brain, and even death.
Symptoms of measles typically manifest between 7 to 21 days after exposure and may include a high fever, cough, and runny nose. Other symptoms consist of red, watery eyes, occasionally resembling pink eye or conjunctivitis. Additionally, a red rash usually emerges starting on the head and neck before spreading downwards to the chest, arms, and legs. This rash is distinctively not itchy and typically appears 3 to 7 days following the onset of other symptoms.
