Children Who Took 3 Doses of COVID-19 Vaccine Have Higher Risk Than Ones With 2 Doses: Pfizer-Funded Research

New research sponsored by Pfizer linked COVID vaccination with reduced medical visits for respiratory illness in children. The detailed data triggered doubt.

A child receives a COVID-19 vaccine in a file photo. Chip Somodevilla/Getty Images

A new research letter sponsored by Pfizer linked COVID-19 vaccination with reduced medical visits for respiratory illness in children. The detailed data, however, triggered doubt.

The study followed children under the age of 5 who were diagnosed at a hospital or clinic with acute respiratory infections of COVID-19.