Children Vaccinated in Messenger RNA COVID-19 Trials at Higher Risk of Certain Illnesses: Study

Published on December 9, 2023

Children who received a Moderna or Pfizer COVID-19 vaccination in clinical trials were at increased risk of certain illnesses, according to a new study. Compared to placebo recipients, children who received one of the modified messenger ribonucleic acid (mRNA) shots were at an increased risk for serious adverse events or respiratory tract infections, Dr. Christine Stabell Benn and other researchers found. Dr. Benn led a group in analyzing data from phase 3 trials conducted for the mRNA vaccines in children, or people younger than 18. The group was focused on figuring out whether the vaccines could have unintended effects beyond COVID-19. They examined trial data from regulatory websites and other sources, ending up with six studies that covered 25,549 people, about 68 percent of whom received a vaccine. The rest received a placebo....