Protection against the omicron variant from the Pfizer-BioNTech COVID-19 vaccine waned after 3 months in children aged 5 to 11 years but was restored by a booster shot, according to study findings published in JAMA Network Open.
Among the study’s authors are Farid Khan, MPH, CMD, lead for global messenger RNA vaccines, analytics and capabilities at Pfizer, and Jennifer L. Nguyen, ScD, MPH, senior director of global clinical epidemiology and COVID-19 vaccines at Pfizer. In written comments credited to both, Khan and Nguyen told Healio that although COVID-19 boosters “continue to