How long will your COVID-19 vaccine last? And will you need a booster?
Dr Fauci said
"We do not believe that others, elderly or non-elderly, who are not
immunocompromised, need a vaccine [booster] right at this moment."
"We are evaluating this on a day-by-day, week-by-week, month-by-month basis," Fauci added. "So, if the data shows us that, in fact, we do need to do that, we'll be very ready to do it and do it expeditiously."
"We believe sooner or later you will need a booster for durability of protection,"
Moderna and Pfizer both reported positive data from their ongoing phase 3 trials, which have continued to
monitor volunteers at least six months after their initial shots. Moderna has said its vaccine
remains more 93% effective against symptomatic illness after six months,
while Pfizer reported a dip in efficacy to 84%, though both studies were conducted with slightly different criteria and prior to the emergence of the delta variant.