This is completely wrong. The RSV vaccine was not approved until May of 2023. The push to release this vaccine, and for older adults to receive it is tangentially related to COVID in multiple ways.

First, the COVID lockdowns caused a massive resurgent wave of RSV infections in both young children and older adults due to the fact that it is a childhood illness with some degree of lifelong immunity that wanes as the virus mutates over time as well as from the degradation of your immune system as you age. When that infection chain in younger children was broken it had consequences on the intensity and mutation of the virus that were not necessarily unprecedented, but perhaps unexpected. This is what lead to a large number of very serious infections in younger children, and then older people in a very short amount of time. I’m not a scientist, but you can look up the statistics for yourself if you’re interested.

Secondarily, the research into COVID vaccines as well as this rise in rebound cases of RSV spurred on the push to study, test, and release these RSV vaccines for adults over the age of 60 who were most at risk. These vaccines have not been approved for children, or anyone under the age of 60 in any country in the world thus far. Again, I am not a scientist, and I do not understand the complexities that lead to so many failures in producing an effective vaccine for RSV when it has been attempted since at least the 1960’s. However, I do know that multiple RSV vaccines that went through human trials in children caused deaths from severe immune responses when patients experienced natural infection. So it is unlikely any vaccine will be created that is either capable or intended to provide prophylactic protection from native infection in children. The current vaccines are intended to strengthen the already existing immune response in adults only, and those are two somewhat different things.