Since the first pediatric Pfizer vaccines landed in Canada last weekend, provinces have been moving fast to get them into arms. Children got their first jabs in Ontario on Tuesday; more kids started being vaccinated in Quebec, Manitoba and Saskatchewan on Wednesday; and the rollout continues to expand. Today we’re joined by Dr. Fatima Kakkar, an infectious diseases pediatrician at the research centre of the Centre Hospitalier Universitaire Sainte-Justine and an assistant professor in the Department of Pediatrics at the Université de Montréal. She breaks down what’s happening with these shots, how they work on kids and what to expect from the rollout.