Both me and my Father have MS. So, it's probably pretty fair to say that I was predisposed to it. I showed my first symptoms just over a year ago - Optic Neuritis. Is it a coincidence that it happened just a few weeks after getting the flu shot? I guess I'll never know for sure.
But, immunizations trigger the immune system to become very active. It seems pretty logical that it could trigger the immune response that is MS - for someone who was predisposed to it already.
I will not be getting any more flu shots but will be getting some vaccinations to go travelling to Indonesia in the Spring. I'm a little nervous about getting them but realize that the risk is too high to take the chance.
I've done some research and in one study, 5% of RRMS patients had a relapse within 3 months of a vaccination.
However, as part of the same study, 33% of RRMS patients had a relapse within 6 weeks of getting the flu.
So.... vaccinations must be a personal choice of each individual. However, the unfortunate part, is that in the vast majority of cases, people are not aware - or informed - of the potential risks involved to the Central Nervous System.