More testing for HIV infection is one of the steps needed to halt the spread of the virus. Joe Raedle/Getty Images hide caption

Joe Neel
Join us for a webcast on life and health in rural America. From The Forum at Harvard T.H. Chan School of Public Health. Courtesy of Harvard T.H. Chan School of Public Health hide caption
"I am frustrated that despite all of our efforts, we haven't been able to identify the cause of this mystery illness," said Dr. Nancy Messonnier, director of the National Center for Immunization and Respiratory Diseases at the Centers for Disease Control and Prevention. James Leynse/Corbis/Getty Images hide caption
CDC Investigates Cases Of Rare Neurological 'Mystery Illness' In Kids
Drug addiction is a big concern to rural Americans, according to a new poll from NPR, the Robert Wood Johnson Foundation and the Harvard T.H. Chan School of Public Health. Alice Goldfarb/NPR hide caption
NPR Poll: Rural Americans Are Worried About Addiction And Jobs, But Remain Optimistic
Dr. James P. Allison, University of Texas MD Anderson Cancer Center, poses for a photo in New York in 2015. Allison and Tasuku Honjo have jointly been awarded the Nobel Prize in medicine or physiology. Richard Drew/AP hide caption
Scientists Who Sparked Revolution In Cancer Treatment Share Nobel Prize In Medicine
Brenda Fitzgerald, Georgia Department of Public Health commissioner, and Gov. Nathan Deal respond to questions about Ebola victims at Emory University Hospital and efforts to screen for Ebola in 2014. A report in Politico revealed documents showing several new investments, including in a tobacco company, by Centers for Disease Control and Prevention Director Brenda Fitzgerald. David Tulis/AP hide caption