On May 5, 2021, Canada became the first country in the world to approve COVID-19 vaccine for emergency use in children aged 12–15 years; later the same month, the US Food and Drug Administration and European Medicines Agency also gave the green light to the Pfizer-BioNTech COVID-19 vaccine for adolescents.  Children younger than 12 years are the next population who need a safe and efficient … [Read more...]