We do not need protection from Asian flu which burned out sixty years ago. My point is that we have no protection possible against a new problem. A vaccine is a post facto application and then only if any recurrence is possible.
There is no such thing as an ante factum vaccine.
The fact is that some plausible success in the past that also ignores the massive change out on our plumbing systems has now been used to force sell vaccines to our governments as a 'good' thing. On top of that we have faux epidemics that all appear to be timed to promote market penetration. It all needs to be shut down and reduced to those effectives that block known recurring pathogens like measles.