this is not a "booster", it's a fresh vaccine that targets a more recent (but no longer dominant) strain. your old jabs don't mean as much these days as they used to, so get this newer one to keep yourself and others around you protected.
we should expect to get at least a yearly covid vaccine from now on, because that's where we're at in this fucking wretched lethal society that absolutely ruined the future. and who knows, Pres. DeSantis will probably make vaccination illegal in 2025, so enjoy it while you can!...