York Region Public Health investigating exposures to confirmed measles case
Newmarket – York Region Public Health is notifying the public of four public measles exposure sites related to a newly confirmed case of measles in York Region. If you attended any of these locations at the dates and times indicated, you may have been exposed to measles.
| Location | Address | Date | Time | Exposure ID | Watch For Symptoms Until (21 days after exposure) |
|---|---|---|---|---|---|
| Costco Richmond Hill | 35 John Birchall Road City of Richmond Hill | Sunday, July 27, 2025 | 3:30 to 7:30 p.m. | 2025026 | Sunday, August 17, 2025 |
| Grand Genesis Pharmasave | 9080 Yonge Street Unit 6A City of Richmond Hill | Monday, July 28, 2025 | 4:30 to 7 p.m. | 2025028 | Monday, August 18, 2025 |
| Mackenzie Richmond Hill Hospital - Emergency Room Waiting Room* | 10 Trench Street City of Richmond Hill | Wednesday, July 30, 2025 | 3:30 to 6:30 p.m. | 2025022 | Wednesday, August 20, 2025 |
| Cortellucci Vaughan Hospital - Emergency Department, Pharmacy and Tim Hortons* | 3200 Major Mackenzie Drive West City of Vaughan | Thursday, July 31, 2025 | 9:30 a.m. to 3:30 p.m. | 2025021 | Thursday, August 21, 2025 |
*NOTE: Anyone who may have been exposed at Mackenzie Richmond Hill Hospital Emergency Room Waiting Room or Cortellucci Vaughan Hospital Emergency Department, Pharmacy, Tim Hortons should immediately confirm they have two doses of measles vaccine. If you were present and you were with an infant under 12 months of age, are pregnant and have not had the measles vaccine in the past, or are immunocompromised, please call York Region Public Health immediately as you may be eligible for preventive treatment.
York Region Public Health advises anyone who believes they may have been exposed to the measles virus to do the following:
- Visit york.ca/MeaslesReporting to complete a brief contact follow-up survey; this will help York Region Public Health assess your risk (or those present with you) and prioritize contacts at greatest risk of becoming infected
- Confirm you and your family members have two doses of measles vaccine (MMR or MMRV); those born before 1970 would likely have had measles illness as a child and are protected; immunizations are one of the safest ways to protect you, your children and your community from serious and potentially deadly vaccine-preventable diseases
- If you develop symptoms, stay home and do not attend work or school; call your health care professional before going to be seen to inform them you may have measles and require additional precautions; you may also call York Region Public Health at 1-877-464-9675 ext. 77280 seven days a week
- If you attended the Emergency Departments at Mackenzie Richmond Hill Hospital or Cortellucci Vaughan Hospital on Thursday July 30, 2025 or Friday July 31, 2025 (as identified in the table above), you may be eligible for a post-exposure vaccine clinic
Measles is a highly contagious viral infection that spreads very easily through airborne transmission. The measles virus can live in the air or on surfaces for up to two hours. Infants under one year of age, pregnant individuals and those who have a weakened immune system are at increased risk of severe complications, including encephalitis (inflammation of the brain) and death.
Symptoms of measles start 7 to 21 days after exposure and may include:
- High fever, cough, runny nose
- Red, watery eyes such as pink eye or conjunctivitis
- Red rash that typically starts on the head and neck that then spreads downward to the chest, arms and legs; the rash typically is not itchy and appears 3 to 7 days after the start of other symptoms
More information on measles can be found at york.ca/Measles
The Regional Municipality of York consists of nine local cities and towns and provides a variety of programs and services to 1.29 million residents and 57,000 businesses with approximately 624,000 employees. More information about York Region’s key service areas is available at york.ca/RegionalServices
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Media Contact
Hayden Casey, Communications and Engagement Associate, Community and Health Services, The Regional Municipality of York
Phone: 905-716-1893 @email
After Hours: 905-806-1216 @email
