Pfizer COVID-19 vaccine approved for Canadians 12 and over, Health Canada says On Wednesday, Health Canada authorized the Pfizer-BioNTech COVID-19 vaccine for those aged 12-15, meaning anyone over the age of 12 is now eligible to be vaccinated by it.COVID-19 pre-registration has also opened to anyone over the age of 49 as well.The region says the province opened the window for the age group as it is expecting an increased supply of vaccine.Other groups who recently got the green light to pre-register include pregnant women, those with at-risk health conditions, essential workers in specific sectors who cannot work from home and adults 18+ living in high-priority neighbourhoods.