York Region Public Health says it has confirmed a travel-related case of the measles.
Officials identified three places where people may have been exposed to the disease.
Officials say anyone who was at Southlake Regional Health Centre’s emergency department in Newmarket April 14-15 should check to see if their vaccinations are up to date.
People may also have been exposed if they attended Fountain Medical and Wellness Centre (including Rexall Pharmacy and waiting areas for Advanced Cardiology, Altima Wellness Centre and The Interventional Pain Specialists Clinic) in Richmond Hill April 10 and 12.
Patrons of Nando’s restaurant in Richmond Hill could potentially have been exposed as well on April 10.
On Friday, region officials included the Doctor’s Office Walk-in Clinic in Richmond Hill. A correction has since been noted on the region’s website.
Symptoms of measles can include high fever, cough, runny nose, sore eyes or sensitivity to light, small spots in the mouth or throat and a red rash on the face or body.