Booster shot now advised for Canadians who received two shots of AstraZeneca vaccine

The National Advisory Committee on Immunization has expanded eligibility guidelines for booster shots of COVID-19 vaccines. Canada’s expert panel on COVID-19 vaccines is recommending boosters for people who received two doses of AstraZeneca or one dose of the Janssen vaccine, regardless of age, and frontline health workers who were vaccinated with mRNA shots that were spaced less than 28 days apart.