There have been numerous studies and they have not demonstrated that there is any correlation between vaccinations and autism. This is something that was spread widely 15 or 20 years ago, and it has not been adequately revealed to the public what's actually going on. Vaccines are very important — certain ones, the ones that would prevent death or crippling. There are others, there are a multitude of vaccines, which probably don't fit in that category, and there should be some discretion in those cases.