BARRIE, ONT. -- Public health declared a COVID-19 outbreak at the Allandale Station Retirement Residence in Barrie after a resident tested positive.

A statement to CTV on behalf of MTCO Holdings Inc. said the infected resident is isolated in her suite and there are currently no other confirmed cases.

Four other seniors' homes in Simcoe Muskoka have outbreaks, Simcoe Manor in Beeton, where 43 residents were infected, Waterford Retirement Community, and I.O.O.F., both in Barrie.

On Friday, the health unit declared the outbreaks over at Riverwood Senior Living in Alliston and Granite Ridge Retirement in Gravenhurst.

The health unit says residents of seniors' homes remain the hardest hit by COVID-19, "with one-third of cases succumbing to the illness."

The Simcoe Muskoka District Health Unit declares an outbreak at an institution with a single confirmed case of COVID-19.