"In our country, we think the doctor should have all the medical records," said Dr. James McElligott, a pediatrician at the Medical University of South Carolina who worked on the study. "I like the idea of putting the ownership back in Mom's hands and empowering her a little bit."
When parents kept a so-called shot card, their child's odds of being up-to-date on vaccinations rose by more than half.
40 percent of the toddlers had a shot card, and 84 percent of these had up-to-date vaccinations. By contrast, only 79 percent of the children without a card had all their shots.
Use the card: it doesn't have a downside and it's cheap."
Want kids' vaccinations up to date? Keep the record | Reuters, 2010.