The FDA authorized the booster to be given at least six months after people have received their second injection.
COVID-19 vaccines continue to behighly effectivein preventing hospitalization.
Those who are unvaccinated have accounted fornearly all the hospitalizations and deaths– over 97% as of July.
Another area of concern for many Americans is when children under 12 will be eligible for a vaccine.
Children 12 and older have been eligible for thePfizer vaccine since May.
Pfizer said on Monday its vaccine issafe and effective for children ages 5 to 11.