The opposition claims that unknown side effects have resulted in some children having additional diseases or defects that end up changing the child’s life. Some of these deficiencies include Autism and Thimerosal, in addition to others. In the article “Should Vaccines be Required for Children?” from ProCon.org, it reads, “ (anti-vaccination supporters claim that) children’s immune systems can deal with most infections naturally, and that injecting questionable vaccine ingredients into a child may cause side effects, including seizures, paralysis, and death. They contend that numerous studies prove that vaccines may trigger problems like autism, ADHD, and diabetes.” The faulty allegations have led to parents worldwide boycotting the vaccinations, and ultimately putting their child at risk for diseases that can lead to death. The overall chances of actually acquiring a defect as a result of vaccinations is slim to none, but in contrast, the vaccinations prove to do a world of good, providing immunization and good health for people