In the last few years, people multiple sclerosis who receive vaccines are worried about having a relapse. This fear started not with the tetanus toxoid but with hepatitis B vaccine as there were some reports that multiple sclerosis developed in people who received this vaccine.
Researchers took it upon themselves to find a link between multiple sclerosis and tetanus toxoid, and most other vaccines. However, research has not shown any conclusive evidence that people with multiple sclerosis can have a relapse after getting tetanus toxoid; nor is there evidence that multiple sclerosis is caused due to the toxoid. In fact, recent research suggests the opposite. Taking tetanus toxoid may actually protect people against multiple sclerosis.
Researchers from the Harvard School of Public Health actually found that if people who had the risk of getting multiple sclerosis took tetanus toxoid, they actually reduced their risk by one-third of getting MS. This research was done based on all the previous studies and did not go into details like the doses a person had to receive or when the vaccine was taken. Since many people in the US receive tetanus vaccine as part of their immunization program, it may be safe to conclude that the reduction of the risk of multiple sclerosis through tetanus vaccine may be dependent on the number of doses an individual receives over a period of time.
This study has opened doors for further research to find a way to prevent and/or treat multiple sclerosis through tetanus toxoid. One thing is for sure that research has proven that taking tetanus toxoid vaccine does not increase a person's risk to suffering from a multiple sclerosis relapse.
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