The effectivity of the flu shot this year is estimated at 96%. I have two children who live with me and most of their friends have gotten sick this winter. Plus we held a party after the new year where people traveled to my city - some of them became ill with influenza while here. I have had plenty of exposure.
Factors that can affect your response to the flu shot include whether or not you had a viral infection at the time you received the shot. If you had a cold when you got the shot your body probably did not produce an effective immune response. Also, if you got the shot and were exposed to influenze within the next two weeks you probably got sick (it takes time for your body to produce an effective immune response). It is best to get a flu shot before the flu season begins (the shots typically become available in September and flu season typically peaks in Jan and Feb).
And true, people shouldn't take antibiotics for the flu. People don't die from influenza either (at least not that I know of). They die from post-influenza complications, which include bacterial infections like pneumonia and bronchitis. These need to be treated with antibiotics.
50 yrs old, IBD diagnosis in spring '01. Proctitis, gastritis, ileitis.
6 pills/day), Sulfazine (1.5 g/day),
, folic acid, vit. D (2K iu), flax seed oil (2 tsp/day), mesalamine enema as needed. Gluten free as of 5/30/11. Colonoscopy found no evidence of inflammation on 8/16/12.