Pfizer COVID-19 vaccine 73 percent effective in children under 5

(The Hill) -- Pfizer’s COVID-19 vaccine was 73.2 percent effective against the disease in children under 5, the company said Tuesday.  The company touted the data as reinforcing the importance of the vaccine, which was authorized in June, after months of waiting for a vaccine for the youngest children.  The effectiveness is after three shots of the vaccine. The Pfizer vaccine’s authorization was delayed earlier this year to allow time to study a third shot, with the idea th