The question of how long vaccine protection lasts can only be answered once enough time has passed, and while six months of protection is a…
View More Ongoing trial shows Pfizer Covid-19 vaccine remains highly effective after six monthsThe question of how long vaccine protection lasts can only be answered once enough time has passed, and while six months of protection is a…
View More Ongoing trial shows Pfizer Covid-19 vaccine remains highly effective after six months