Pfizer vaccine less effective against COVID-19 in kids aged 5-11: Study
For hospitalisations, vaccine effectiveness fell from 85 per cent to 73 per cent over the same time frame, they said. The effectiveness of the Pfizer COVID-19 vaccine for children waned quickly during the Omicron surge in the US, especially among those aged 5 to 11 years, but the preventive was still protective against severe disease, … Read more