MSNBC MTP Daily February 11, 2022 18:41:00
Immunological response is waning after three, four, five months, it is still going to be protective for most people against being hospitalized or dying from covid. that said, i this what we're going to be looking at is one of two possibilities. either we're going to need at some point a fourth shot, app additional booster, or at some point the scientists that are working on this at the nih and at the army research facility are going to come up with a vaccine that's universal for all kinds of covid viruses and that may last what lot longer in terms of protection than what we're dealing with now...
Source: archive.org