While doing some research for my upcoming seminar, "Your Prescription May Be Your Problem," I came across this interesting tidbit...
"During the period from 1989 to 1997 the vaccination rate for elderly persons 
65 years of age in the US increased from 30 to 67%. Despite this increase in coverage, mortality and hospitalization rates continued to increase rather than decline as would be expected if the vaccine were optimally efficacious."-- from the International Journal of Epidemiology
In other words, an analysis of nearly 10 years' of data reveals that what the public health experts have been telling us is simply not true. The fact of the matter is that the influenza virus does little to prevent the flu.
You'll get more about this -- and some other revealing research -- by attending my seminar.