FDA's top vaccine leader explains why Covid-19 'boosters' may really just be the 3rd shot in the primary series

Don’t call it a booster. Well, call it a booster for a little while longer but then we’ll just say it’s the third dose of a three-dose vaccine, according to FDA’s top vaccine leader Peter Marks.

Speaking on a stakeholder call with physician groups earlier this week, Marks explained how fluid the situation is with terminology, after a representative from the American Academy of Family Physicians said there’s confusion around whether what the FDA authorized last week is actually a booster or the third dose in this initial series of Covid-19 vaccine shots.