Pfizer vaccine found to be less effective in preventing infection in very young children than older ones, as U.S. death toll tops 950,000
March 01, 2022 at 10:28 AM EST
The COVID-19 vaccine developed by Pfizer and German partner BioNTech is much less effective in preventing infection in children aged 5 to 11 than in older people, according to a new data set from health officials in New York state.
