[Ctopher]

Originally Posted by red-beard

And again, by booster, this is a new vaccine, not a "third shot" of the same.

I am curious about this comment. I’ve not seen any details about the booster and from 3rd hand info though a friends doctor and nurse friends it’s labeled as a 3rd shot.
So the question is, is this a new mixture specific to combat Delta? My kindergarten understand was the mRNA versions of the vaccines could be more easily modified to combat variants. I am curious to read more info on this if you have any sources.

Thanks,

CTopher