A new study in the journal Pediatrics looks at potential health and developmental risks associated with giving babies lots of vaccines very early versus spreading them out over the first few years of life. Short story shorter – there are none:

The analysis found little difference in results for children in both on-time and delayed vaccination groups. The on-time group did slightly better on an intelligence test and a little faster on a test asking children to name things. “There’s not a single variable where the delayed kids did better,” Dr. Smith said.

Of course, as the WSJ article points out, delaying vaccination does put kids at greater risk for the infections that vaccines help prevent. But is this research going to convince the anti-vaccine parents out there? I doubt it.