Dr. William M. Geisler, MD, MPH, is a clinical consultant to the UAB Diagnostic Mycoplasma laboratory with expertise in adult infectious disease, particularly sexually transmitted infections including Mycoplasma genitalium. He is a Professor of Medicine and Epidemiology in the Division of Infectious Diseases at the University of Alabama at Birmingham (UAB). He went to college and medical school at the University of Tennessee. He completed Internal Medicine Residency at the University of Michigan and an Infectious Diseases Fellowship at the University of Washington, where he also obtained an MPH in Epidemiology. He has an established chlamydia and M.genitaliumresearch program funded by federal and non-federal sources. He has 20 years of clinical experience in the evaluation and management of sexually transmitted infections (STIs) and provides STI education and training through the Alabama-North Carolina STD/HIV Prevention Training Center. He is on the editorial board of Sexually Transmitted Diseases and has served as an expert consultant for the Centers for Disease Control (CDC) and the World Health Organization (WHO).