As documented by a new study, getting a flu vaccination can result in coming down with a more virulent influenza. This phenomenon was noted during the swine flu pandemic-that-wasn’t a couple of years ago, but pooh-poohed by skeptics.
In the study published in the journal Science Translational Medicine, pigs were given a universal flu vaccine of the type currently under development. They developed a more virulent form of influenza that readily turned into pneumonia when exposed to a strain similar to the variety used in the vaccine.
Via Ed Rybicki