Incidence of Multiple sclerosis varies annually as well as from source to source. Incidence of MS is about two and a half million people worldwide. There are great variances in numbers of affected persons between countries, however, research suggests three general factors that can be responsible for these variations. Women have twice the likelihood of being diagnosed with MS as men do, except in the pediatric world. Although MS tends to be a disease of adults more than of children, pediatric MS is present. It is important to note that, the majority of children affected by MS tend to be males until puberty. After puberty, most of the people affected by MS are females.

Environmental factors, genetics, and past infections are the 3 factors most people believe responsible for MS around the world. In fact, countries that are further from the equator have a much higher rate of MS than …