A University of Michigan expert says we need to keep the threat posed by a new and potentially deadly respiratory infection in perspective.
The first U.S. case of MERS was recently discovered. It has infected about 400 people, mainly in the Middle East, since 2012. It's been fatal in about a third of those cases.
Dr. Howard Markel is a pediatrician, U-M's George E. Wantz Distinguished Professor of the History of Medicine, and a consultant to the U.S. Centers for Disease Control and Prevention.
He says any emerging infectious disease is a serious problem.