Ontario continues its battle against measles and here's where you could've been exposed
The province continues to see hundreds of measles cases confirmed a week.
Windsor has had a number of confirmed measles cases.
Sean Pavone | Dreamstime
Writer
May 09, 2025, 11:21 AM
Ontario continues to see a significant spike in reported measles cases across the province.
According to the latest data from Public Health Ontario, 211 more measles cases were reported from April 29 to May 6, bringing the total number of cases in the province to 1,453 (1,260 confirmed, 193 probable) in 2025.
Ontario saw only 101 measles cases in the decade between 2013 and 2023, and last year, there were just 64.
The southwestern region of the province is still the hardest hit by the disease.
Toronto hasn't been badly affected by the outbreak yet, but there was a confirmed case at Ripley's Aquarium on April 21. Toronto Public Health is advising anyone who visited the popular tourist attraction between 1 p.m. and 7 p.m. to monitor their symptoms until May 12.
Here are all the reported places in Ontario where you could have been exposed to measles in the last 21 days.
Chatham
- Emergency department at Chatham-Kent Health Alliance (80 Grand Ave. W.) between 2:15 p.m. and 6:30 p.m. on April 30. Monitor for symptoms until May 21.
Dresden
- Dresden Old Colony Mennonite Church Building (10222 McCreary Ln.) between 9:30 a.m. and 2 p.m. on April 20. Monitor for symptoms until May 11.
Guelph
- Guelph Medical Place Pharmacy (83 Dawson Rd.) between 12 p.m. and 4:30 p.m. on April 21. Monitor for symptoms until May 12.
Hanover
- Wow! Wing House (365 10th St.) between 11 p.m. on April 18 and 1:30 a.m. on April 19. Monitor for symptoms until May 10.
- Danny's Hotel (703 7th Ave.) between 12 a.m. and 4 a.m. on both April 19 and April 20. Monitor for symptoms until May 11.
- The Alley (149 5th St.) between 11 p.m. on April 19 and 2 a.m. on April 20. Monitor for symptoms until May 11.
- Shoppers Drug Mart (895 10th St.) between 2 p.m. and 4:15 p.m. on April 23. Monitor for symptoms until May 14.
Kitchener
- Kitchener Memorial Auditorium (The Aud) (400 East Ave.) between 6 p.m. on April 24 and 1 a.m. on April 25. Monitor for symptoms until May 16.
Leamington
- Walmart Supercentre — Leamington (304 Erie St. S.) between 10 a.m. and 1 p.m. on April 21. Monitor for symptoms until May 12.
- FreshCo — Leamington (250 Erie St. S.) between 10 a.m. and 1 p.m. on April 21. Monitor for symptoms until May 12.
- Uniquely Yours Bed & Bath (3 Queens Ave.) between 9:15 a.m. and 5:30 p.m. on April 22 and between 9:15 a.m. and 6 p.m. on April 23. Monitor for symptoms until May 14.
- Central Erie Shores Walk-In Clinic (33 Princess Ave.) between 3 p.m. and 8 p.m. on April 22 and between 1:30 p.m. and 8 p.m. on April 23. Monitor for symptoms until May 14.
- Dr. Moncur's Office (10 Clark St. W.) between 11:25 a.m. and 2 p.m. on April 23. Monitor for symptoms until May 14.
- Erie Shores HealthCare (194 Talbot St. W.):
- Entire building, between 11:15 a.m. and 12:40 p.m. on April 22. Monitor for symptoms until May 13.
- Entire building, between 6:32 a.m. on April 24 and 5:43 p.m. on April 25. Monitor for symptoms until May 16.
- Emergency department, between 11 p.m. and 11:59 p.m. on April 30. Monitor for symptoms until May 21.
Listowel
- Veky's International Cuisine (245 Main St. E.) between 2 p.m. and 5:30 p.m. on April 19. Monitor symptoms until May 10.
- Listowel-Wingham and Area Family Health Team – Listowel Clinic (185 Inkerman St. E.) between 10:25 a.m. and 12:45 p.m. on April 29. Monitor for symptoms until May 20.
London
- LHSC Victoria Hospital (800 Commissioners Rd. E.):
- Children's emergency department, between 8:40 p.m. and 10:51 p.m. on April 23. Monitor for symptoms until May 14.
- Paediatric medical day unit, between 2:29 p.m. and 6:42 p.m. on April 25. Monitor for symptoms until May 16.
Kingsville
- Guardian — Malotts Pharmacy (59 Main St. E.) between 10:06 a.m. and 12:45 p.m. on April 22. Monitor for symptoms until May 13.
- Main entrance, waiting room & patient assessment rooms at Erie Shores Family Health Team — Kingsville (59 Main St. E.) between 10:06 a.m. and 1:45 p.m. on April 22. Monitor for symptoms until May 13.
Markdale
- South East Grey Community Health Centre (55 Victoria Ave., Grey Highlands) between 2:25 p.m. and 5 p.m. on April 29. Monitor for symptoms until May 20.
Markham
- Markham YMCA (101 YMCA Blvd.) between 10:45 a.m. and 2 p.m. on April 20. Monitor for symptoms until May 11.
Owen Sound
- Emergency room at Brightshores Health System's Owen Sound Hospital (1800 8th St. E.) between 4:40 p.m. on April 20 and 10:35 a.m. on April 21. Monitor for symptoms until May 12.
- No Frills Owen Sound (1020 10th St. W., Georgian Bluffs) between 11 a.m. and 2 p.m. on April 22. Monitor for symptoms until May 13.
- Food Basics Owen Sound (1350 16th St. E.) between 11 a.m. and 2 p.m. on April 22. Monitor for symptoms until May 13.
Ruthven
- Kingdom Hall of Jehovah's Witnesses (1590 Union Ave.) between 1 p.m. and 5 p.m. on April 20. Monitor for symptoms until May 11.
Sarnia
- Emergency department at Bluewater Health Sarnia (89 Norman St.) between 2 a.m. and 5:20 a.m. and between 7:30 a.m. and 10:20 a.m. on April 28. Monitor for symptoms until May 19.
Seaforth
- Emergency department waiting room at Seaforth Community Hospital (24 Centennial Dr.) between 5 p.m. and 7:10 p.m. on April 24. Monitor for symptoms until May 15.
Simcoe
- Real Canadian Superstore (125 Queensway E.) between 9:30 a.m. and 12:30 p.m. on April 19. Monitor for symptoms until May 10.
- Simcoe Arms Restaurant and Pub (140 Queensway E.) between 2:45 p.m. and 6 p.m. on April 19. Monitor for symptoms until May 10.
St. Marys
- Emergency Department waiting room at St Marys Memorial Hospital (267 Queen St. W.) between 4:12 p.m. and 6:28 p.m. on April 23. Monitor for symptoms until May 14.
Stratford
- Stratford General Hospital (46 General Hospital Dr.):
- Emergency department waiting room, between 9:15 p.m. and 11:40 p.m. on April 19. Monitor for symptoms until May 10.
- Maternal child department, 2nd floor, between 10:15 a.m. and 1 p.m. on April 22. Monitor for symptoms until May 13.
- Outpatient registration, lab & waiting room, 1st floor of the west building, between 11 a.m. and 1:30 p.m. on April 22. Monitor for symptoms until May 13.
- Ultrasound department, between 9 a.m. and 1:30 p.m. on April 23. Monitor for symptoms until May 14.
- Emergency department waiting room, between 3:49 p.m. on April 22 and 6:31 p.m. on April 23. Monitor for symptoms until May 14.
Tillsonburg
- Emergency department at Tillsonburg District Memorial Hospital (167 Rolph St.):
- Between 8:19 p.m. on April 24 and 2:54 a.m. on April 25. Monitor for symptoms until May 16.
- Between 11:28 a.m. and 4:20 p.m. on April 25. Monitor for symptoms until May 16.
- Between 10:24 a.m. on April 27 and 9 a.m. on April 28. Monitor for symptoms until May 19.
Toronto
- Ripley's Aquarium (288 Bremner Blvd.) between 1 p.m. and 7 p.m. on April 21. Monitor for symptoms until May 12.
Walkerton
- Walkerton Emergency Room at South Bruce Grey Health Centre (21 McGivern St. W.) between 12:01 a.m. and 2:30 a.m. on April 21. Monitor for symptoms until May 12.
Wallaceburg
- Emergency department at Chatham-Kent Health Alliance (325 Margaret Ave.) between 1:30 p.m. and 9:15 p.m. on April 24. Monitor for symptoms until May 15.
Windsor
- Emergency department at Windsor Regional Hospital — Metropolitan (Met) Campus (1995 Lens Ave.) between 3 p.m. on April 21 and 10:15 a.m. on April 22. Monitor for symptoms until May 13.
- Soar Hobby & More (3153 Walker Rd.) between 10 a.m. and 8 p.m. on April 23 and between 10 a.m. and 4 p.m. on April 24. Monitor for symptoms until May 15.
- Transit Windsor's Walkerville 8 Bus between 7:30 a.m. and 9:35 a.m. on April 25. Monitor for symptoms until May 16.
- Spys (475 Tecumseh Rd. E.) between 2 p.m. and 4:10 p.m. on April 26. Monitor for symptoms until May 17.
- VCare Clinics Urgent Care Family and Pediatrics (2285 Howard Ave.) between 9 a.m. and 1 p.m. on April 27. Monitor for symptoms until May 18.
Wingham
- Emergency department at Wingham & District Hospital (270 Carling Terr.) between 4:45 p.m. and 8:20 p.m. on Aptil 29. Monitor for symptoms until May 20.
Woodstock
- Woodstock Hospital (310 Juliana Dr.):
- Emergency department, between 8:45 p.m. on April 18 and 12:57 a.m. on April 19. Monitor for symptoms until May 10.
- Emergency department, between 10:10 a.m. and 3:13 p.m. on April 26. Monitor for symptoms until May 17.
- Diagnostic imaging, between 12:30 p.m. and 2:30 p.m. on April 26. Monitor for symptoms until May 17.
For more information on symptoms of measles, you can visit Public Health Ontario's website.
This article's cover image was used for illustrative purposes only.
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