Daniela Chavarriaga holds her daughter Emma as Dr. Jose Rosa-Olivares administers a measles vaccination at Miami Children's Hospital. Joe Raedle/Getty Images hide caption

itoggle caption Joe Raedle/Getty Images

Kevin Wierhs and Susan Johnson confer about what works and what doesn't in managing diabetes. Sarah McCammon/Georgia Public Broadcasting hide caption

itoggle caption Sarah McCammon/Georgia Public Broadcasting

David Combs, an insurance broker in Kentucky, wound up benefiting from the Affordable Care Act, even though early on he had figured the law would put brokers out of business. Jenny Gold/Kaiser Health News hide caption

itoggle caption Jenny Gold/Kaiser Health News

Michael Granillo and his wife Sonia await treatment at an emergency room in Northridge, Calif. Anna Gorman, Kaiser Health News hide caption

itoggle caption Anna Gorman, Kaiser Health News

Sisters of the Servants of Mary from Kansas City, Kan., at a rally in 2012. Catholic employers don't want to offer insurance coverage for contraceptives, but Catholic insurance companies have quietly arranged for coverage for years. John Hanna/AP hide caption

itoggle caption John Hanna/AP

Victoria Ruiz (left), a postdoctoral fellow in immunology, works with Brianna Delgado, a high school student that she mentors, at the Blaser Lab, inside NYU's Langone Medical Center in New York, NY. Ramsay de Give for NPR hide caption

itoggle caption Ramsay de Give for NPR