Hi , that's a very good question. My own personal thoughts are that I think we might. Many people with MS tend to have some sort of event, illness or injury, that they can point to that seems to be a trigger. Something happens that gets the immune system going and then when that ailment is done, the immune system doesn't stop and turns itself on our nervous system. That's something I've always thought anyway, just from the various stories I've heard from others with MS. That includes me, I too developed meningitis in the year prior to me being diagnosed with MS. I've had many doctors share that line of thinking with me as well. I don't see these types of things as the cause of MS, but rather, maybe something that helps trigger it and gets it going (again, my personal opinion). So I could totally see how having more people sick in general (with a serious illness) could lead to a greater number of people eventually being diagnosed with MS. I do think, on the flip side of that, that there may be plenty of folks who might get MS, are primed to have it, but never have an event that triggers it, never have something that really gets their immune system going as hard as other peoples. Again, just my thoughts. It's a very interesting question though.