The Centers for Disease Control and Prevention (CDC) report that the number of new HIV infections is higher than previously estimated. The study finds that there were 56,300 new HIV infections in the U.S. in 2006, not 40,000. Guests discuss the CDC findings and talk about risk factors for contracting HIV.
Brenda Wilson, NPR science desk correspondent
Dr. Robert Johnson, professor and interim chair of pediatrics at the University of Medicine and Dentistry of New Jersey