Institution: | 1. Division of HIV/AIDS Prevention, Centers for Disease Control and Prevention, , Atlanta, GA, USA;2. Division of STD Prevention, Centers for Disease Control and Prevention, , Atlanta, GA, USA;3. Department of Obstetrics and Gynecology, University of Washington, , Seattle, WA, USA;4. Laboratory of Intracellular Parasites, Rocky Mountain Laboratories, NIAID/NIH, , Hamilton, MT, USA |