Health Canada has approved a Pfizer-BioNTech COVID-19 vaccine booster for children ages five to eleven. It's the first bivalent shot to be approved for use in kids and will target the original strain of COVID-19 as well as more recent variants.

The National Advisory Committee on Immunization recommends that children with weakened immune systems or underlying medical conditions should be offered a dose of the vaccine at least six months after they receive their first two COVID-19 shots.