Public Health Canada approved the use of Pfizer/BioNTech mRNA vaccine for children ages five to 11 on Nov. 19. The decision was highly anticipated as parents—including one of the authors—have been waiting to protect school-age children in the face of growing SARS-CoV-2 positive cases and spare them from another interruption of the school year. (Children ages five to 11 represent 7.5 percent of all the cases in Canada, with potentially life-threatening consequences.)