Wrong. Influenza is extremely difficult to vaccinate against because it mutates an awful lot and a vaccine against one strain won't of necessity be effective against another. It is also not just one virus but a whole array of them. It is thus not possible to "get it right" with a vaccine against influenza.Also, lets think about how well the Influenza Shot is doing. Oh wait, they have to change it every year, because it doesn't work right. Yet they push it every year as a preventative.
They aren't taking the time to get stuff tested, and get it right.