Grey Bruce Public Health (GBPH) is warning of yet another local measles exposure.
The exposure occurred on June 7, 2025, between approximately 4:30 and 5:30 p.m. at Ashanti Coffee in Thornbury within the Blue Mountains.
The exposure window is set at 4:30-7:30 p.m., though, due to the measles virus being able to be airborne for more than 2 hours, depending on the setting.
Anyone who was at this location during this time frame should confirm their measles vaccination status, monitor for symptoms and if symptoms develop, immediately contact your healthcare provider.
If you are not vaccinated against measles, GBPH officials are strongly suggesting you do so. You can contact your healthcare provider or Grey Bruce Public Health to receive post-exposure treatment, if it’s been six days or less since exposure, or to receive a measles-containing vaccine for lifelong protection.
"Vaccination is the best defence against measles, a highly contagious respiratory virus. One dose of a measles-containing vaccine is about 85 per cent to 95 per cent effective at preventing measles. With two doses, efficacy rises to nearly 100 per cent," a GBPH statement said.
Grey Bruce Public Health has created a dedicated measles webpage, available at the following link: Measles – Grey-Bruce. This webpage includes information on measles-containing vaccines, including when individuals should be vaccinated, along with a list of local measles exposure locations, and additional information on the measles virus, including symptoms and the virus’s infectious period.