MSNBC The 11th Hour With Brian Williams October 19, 2021 06:47:00
For at least a few months, that this was going to be a two dose vaccine. a two dose regiment would be needed. it's not to say that johnson & johnson is inferior, after all we give two doses of the pfizer and moderna, and are now for certain groups given a third dose. but i think in particular for people who got the johnson & johnson vaccine, getting some guidance as to what's second dose should be given. it does appear that they may benefit, that group in particular may benefit from mixing and matching. so, if they got the johnson & johnson first, to get either pfizer or moderna second does se...
Source: archive.org