Ontario is expanding eligibility for a third COVID-19 dose, with individuals from additional “high-risk” groups able to access the booster shot on Nov. 6. High-risk groups will be able to receive the booster shot if six months have passed since their last vaccine dose. Those groups include: Individuals aged 70 and above Health care workers and essential caregivers who work in congregated setting such as long-term care homes and retirement homes. Individuals who received a complete series of a viral vector vaccine (two doses of the AstraZeneca vaccine or one dose of the Janssen vaccine); and First Nation, Inuit, and Métis adults, including their non-Indigenous family members. Ontario is the first province in Canada to administer the third vaccine dose to select vulnerable populations. The expansion will bring the number of eligible individuals in the province to 2.75 million, the provincial government said in a Nov. 3 statement and was based …