Anonymous wrote:I was told that the vaccine for flu really only lasted 3 months and that you should get them twice. I was also told that it lasted 6 months. That year I had the WORST flu ever.
In fact, I've only ever had the flu, when I have also had the vaccine. The years I have not had the vaccine, I haven't caught it.
I work in health care as an analyst (but get clinical exposure) and have NEVER heard anything about "3 months" for a vaccine.
The years you didn't have the flu you were lucky that you were not exposed to it.
The years you had the flu must have been some of the "off" years for the strains in the vaccine (e.g., 2013-2014 season and approx 2007-2008 come to mind).