Pfizer-Funded Study Shows Poor Effectiveness for COVID-19 Vaccine in Young Children

Three doses of the Pfizer vaccine provided little protection against emergency room visits, urgent care encounters, or outpatient visits.

Syringes and vials of the Pfizer-BioNTech COVID-19 vaccine are prepared to be administered at a drive-up vaccination site in Reno, Nev., on Dec. 17, 2020. Patrick T. Fallon/AFP via Getty Images

A new study funded by Pfizer found the company’s COVID-19 vaccine did not perform well in children under 5.

Children aged 6 months to 4 years are supposed to receive three shots of the Pfizer-BioNTech vaccine. The number was increased from two when early testing showed little effectiveness.