An expert panel on Wednesday recommended that Pfizer’s Covid-19 vaccine be offered to adolescents between the ages of 12 and 15, opening the door to vaccinating this age group in coming weeks — and before the start of the next school year. The Advisory Committee on Immunization Practices voted 14 to 0 in support of the recommendation, making the Pfizer vaccine the first to be offered to children under the age of 16. … The committee advises the CDC on vaccine policy.