They randomly assigned 824 pregnant women and new parents to one of three groups: one received standard information about vaccines from their “own” pediatrician, the other was redirected to the research site for more but general information about vaccines, and the third received user information from the site. And for 98 parents who thought they were vaccinated, the approach seemed unsuccessful: only 67% of these babies were relevant, compared to 88% of parents whose parents received general information about the vaccines. In this regard, Mr. Glanz and his colleagues wonder if it would be useful to provide parents with more detailed information – online materials “adapted” to their specific concerns. The study concluded that parents who received this information were not more likely than other parents to inform their children about vaccinations. Even if these parents are not “stubbornly” against vaccines, it can be difficult for pediatricians to dispel their concerns, said Jason Glanz principal investigator for the study. Both parents encouraged parents to talk to their doctors about any vaccination problems, rather than relying on what they find online. Among parents who wanted to be vaccinated, the highest immunization rate, 88 percent, was among parents who were referred for general information rather than personal information. Conventional childhood vaccines have a long history of safe use, Glanz said, but some parents have concerns. Overall, there is no difference for parents: In all three groups, between 91 and 93 percent of 15-month-old adults knew about their latest vaccinations. This adjustment was made through a survey where parents were asked about their ideas and concerns about the vaccine. The survey was conducted among “ready-to-vaccinate” parents, who differed from the “anti-Waxer” parents. However, studies show that about 10% of parents delay or refuse their children’s vaccine, mainly for safety reasons. However, depending on “this,” the changed information may also have increased some parents’ concerns. The question of how to influence parents who want to be vaccinated is always important, Marcus said. “Your pediatrician is the best source of information about vaccines, much better than the media,” she said.