Options for avoiding bugs may seem limited: Stay inside or submit to a panoply of dangerous chemicals. This hour we'll learn which repellents are effective, and which do more harm than good. We'll also hear from a doctor who says vitamins and supplements are costing Americans their money and health, and get the facts on Legionnaires' Disease.

Guest:

Dave Andrews, Senior Scientist at the Environmental Working Group

Paul Offit, Chief of the Division of Infectious Diseases at Children's Hospital of Philadelphia

Jack Killen, Deputy Director of the NIH's National Center for Alternative and Complementary Medicine

Diane Gorgas, Residency Director, department of emergency medicine, Wexner Medical Center, columnist for the Dispatch