A recent poll showed that about a third of parents of younger children would get their kids vaccinated, a third would not, and the final third said they wanted to wait and see how the vaccines worked. Public health officials are asking: what will it take to convince that third group that now is the time to vaccinate?  Guests: Julie Hamill Dr. Aaron Carroll, pediatrician and professor of pediatrics at Indiana University School of Medicine Host: Lizzie O’Leary Learn more about your ad choices. Visit megaphone.fm/adchoices