Erie Shores Healthcare is the second hospital in the region to change its visitor policy amid a measles outbreak.
Children under 16 won't be allowed in the hospital until further notice.
Those arriving at the hospital will undergo measles screening at all hospital entrances.
Those exposed to the virus over the past three weeks who are unvaccinated or experiencing symptoms should contact Erie Shores Healthcare before arrival. Those who have an appointment at the hospital should call the switchboard before arrival at 519-326-2373 for guidance.
If you need emergency medical attention and have had a recent exposure, call the number above and extension 4400 so staff can limit exposure within the hospital.
Windsor Regional Hospital implemented similar visitor restrictions on Thursday.