Thimerosal is not the only ingredient of vaccines that may be causing the increase in autism. By assaulting the immune system at a very young age, multiple vaccinations may be doing other harm that is not yet fully understood. Autism is a neurological condition, and side effects of vaccination are known to cause other neurological problems. | Thimerosal is not the only ingredient of vaccines that may be causing the increase in autism. By assaulting the immune system at a very young age, multiple vaccinations may be doing other harm that is not yet fully understood. Autism is a neurological condition, and side effects of vaccination are known to cause other neurological problems. |