There are a lot of questions about childhood vaccinations out there and it can be overwhelming for parents.
A new study in the Medical Journal, Pediatrics takes a big stand saying children should absolutely get their vaccines.
The researchers poured over more than 20,000 scientific titles and 67 papers on vaccine safety to reach what they believe is the most comprehensive conclusion on the subject.
They found no link between vaccines and childhood leukemia or autism.
Researchers said only a small fraction of people had negative side effects from vaccines and the positive effects dramatically outweighed the bad.