Some cynical conspiracy theorists believe that flu shots are actually a combined ploy by the U.S. government and high ranking companies in the consumer sector. Let's think about the facts; flu shots are only administered prior to the holiday season, they are altered every year as a way to sway consumer trends (the "elmo" strain released in '96 was exceptionally powerful and successful), and they are usually given to the elderly who studies have shown are highest spending demographic during this festive time of year due to the increasing number of grandchildren. All signals point to a plot to turn American's into mindless money spending robots who are also immune to influenza.
Upon searching senate documents from the period after the devastating Pandemic influenza of 1918, the administration under President Wilson managed to pass a little known provision allowing for government funding to be allocated to research into whether or not mind control could be accomplished through immunization. The bill called "The Olde-Timey Disease Prevention Act" was voted into law by congress in the spring of 1919. This bill also worked toward the prevention of: Rickets, Whooping Cough, Cholera, and Typhoid Fever. Considered overly successful in the work of eradicating these illnesses, the mind control possibilities were recognized early into the research but, because of the combination of the ravages of the great depression and the rationing of resources during WWII, the full potential was not recognized until the early 1950's. Combined with the economic boom of the post war society, the government able to administer mind controlling immunization across the socio-economic grid.
The technology only got better through the following decades and by increasing certain bacteria scientists and government officials could sway trends. It reached a high water mark in the early 80's with the cabbage patch craze around the holiday seasons. With increased tax revenues obtained in the past decades the U.S. government has been forced to keep this project deeper and deeper under wraps.
Don't believe anything you read on the internet. Who says you can't create your own media. I was thinking about submitting this to wikipedia.