Ontarians living in congregated settings like long-term care homes and retirement homes can get the fourth dose of the mRNA vaccine if three months have passed since they received their third dose.

“Dr. Kieran Moore, Ontario’s chief medical officer of health, made the announcement at a press conference on Thursday, as the province takes precautionary measures to limit the spread of the new Omicron variant.

In addition, Ontario also mandated that any staff, students, volunteers, caregivers, or support workers working at long-term care residences must get a third booster dose by Jan. 28.”

https://www.theepochtimes.com/fourth-dose-of-covid-19-vaccine-available-for-ontarios-seniors_4187830.html?