To date, there is no conclusive scientific evidence that any part of a vaccine or any combination of vaccines causes autism, even though researchers have carried out many studies to answer this important question. There is also no proof that any material used to make or preserve vaccines plays a role in causing autism.
Although there have been reports of studies that relate vaccines to autism, the findings have not held up under further investigation. Researchers have been unable to replicate the studies that reportedly found a link between autism and vaccines.
There is a great deal of research and discussion on the topic of vaccines and autism—too much to cover here. The U.S. Centers for Disease Control and Prevention (CDC) conducts and supports most of the federal epidemiological studies that seek to answer questions about vaccines and autism.
Currently, the CDC provides the most accurate and uptodate information about research on autism and vaccine research, both supported by the federal government and funded independently.
