Pfizer-BioNTech Covid shot 73.2% effective in kids under 5, states new data

Pfizer Inc's Covid-19 vaccine was 73.2% effective in children aged between 6 months and 4 years, the company's data showed on Tuesday, two months after the US rollout of the shots began for that age group. Pfizer and BioNTech's vaccine was authorized for children under 5 years in June, based on data that showed the vaccine generated a similar immune response to those seen in older age groups.