MSNBC Hallie Jackson Reports March 18, 2022 19:34:00
Fourth shot gives people who already have immunity a little bit more. but it doesnt give you that much more protection against omicron or the b.a. 2 one that wereied about. this just tells me, i think, its not really a fourth shot. im starting to think of this as a seasonal shot. i mate different, the form l.a. the flu shot every year differs. but think of this as, hey, were just going to need a little bit of a boost at a regular interval. now we need to figure out who, what, when and where. how...
Source: archive.org