BRICK - According to a national study conducted by the Official Journal of the Academy of Pediatrics, a growing number of parents are skipping or delaying vaccinations for their children.

This trend has raised concern in the medical community. Gary Weitzen says that his son became autistic after being vaccinated at 18 months old. Weitzen is among the growing parents worried about vaccine safety and pushing to spread them out over more time.

According to the study, 13 percent of parents are skipping some shots and delaying others.

According to research cited in the study, skipping one or more vaccines makes a child 22-times more likely to contract measles and nearly six times more likely to get whooping cough.