severely

The National Advisory Committee on Immunization (NACI) had previously recommended third doses for immunocompromised people 12 years of age and older.A health-care worker high-fives a child who just received the Pfizer-BioNTech COVID-19 vaccine for children in Montreal on Nov. 24, 2021. Children who are moderately to severely immunocompromised should get a third dose of the vaccine,…