Sen. Bill Cassidy (R-LA), a doctor, says he’s “very concerned” about the upcoming vote by the CDC’s panel of federal vaccine advisers on potentially changing the hepatitis B vaccine schedule for infants. “This is policy by people who don't understand the epidemiology of hepatitis B, or who have grown comfortable with the fact that we've been so successful with our recommendation that now the incidence of hepatitis B is so low, they feel like we can rest on our laurels,” Cassidy says. | Face The