Charles D. Ericsson, MD, is a board-certified and fellowship-trained infectious disease and travel medicine specialist. A Harvard professor who was a Nobel Laureate inspired him to become a physician. Ericsson decided to specialize in infectious diseases because he wanted to be a medical detective. Ericsson is a professor of infectious diseases in the Department of Internal Medicine at McGovern Medical School at UTHealth Houston and director of the travel medicine program. He has conducted clinical studies on traveler’s diarrhea in Guadalajara, Mexico. These research studies and his upbringing as an Army brat naturally segued into an interest in travel medicine. Ericsson is the founder and editor-in-chief of The Journal of Travel Medicine and past president of the International Society of Travel Medicine. He is heavily involved in hospital infection control and antibiotic approval programs and directs the Infectious Diseases Fellowship Training Program at McGovern Medical School.