In a recent research paper posted to the medRxiv* preprint server, scientists explored the safety of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) BNT162b2 vaccine in children under five years of age. Study: Safety of the BNT162b2 mRNA COVID-19 Vaccine in Children below 5 Years (CoVacU5) – an Investigator-Initiated Retrospective Cohort Study. ​​​​​​​Image Credit: Volodymyr Maksymchuk