A comprehensive new study spanning 20 years and 57 vaccines finds vaccines are "remarkably safe" — safer, in fact, than "almost any other modern medical intervention," lead author Dr. Daniel Shepshelovich told Business Insider.

For the study, he and other researchers at Tel Aviv Sourasky Medical Center looked at the labels, including safety-related changes, of 57 vaccines that became FDA-approved between the beginning of 1996 and end of 2015.