Pfizer vaccine 90% effective in warding off COVID in adolescents

The Pfizer vaccine is highly effective against preventing coronavirus in adolescents, a new Israeli study published overnight Wednesday in the New England Journal of Medicine showed. The research, which focused on youth between the ages of 12 and 18, was carried out by Clalit Health Services. It found that the vaccine was 90% effective against warding off infection and 93% effective against stopping symptomatic infection on days seven to 21 after the second dose, even against the Delta variant.