Kristen Hess, MS, MPH¹, Pamina Gorbach, DrPH², Leonardo Colemon, MA¹, Cathy J. Reback, PhD³, Matt Mutchler, PhD⁴, Raphael Landovitz, MD⁵, Galina Inzhakova, MPH⁶, Bryce McDavitt⁴, Ken Salehi⁷ and Ronald Mitsuyasu, MD⁷, 1Department of Epidemiology, University of California, Los Angeles, Los Angeles, CA, 2Department of Epidemiology, UCLA, Los Angeles, CA, 3Friends Research Institute, Los Angeles, CA, 4AIDS Project Los Angeles, Los Angeles, CA, 5Department of Medicine, Division of Infectious Diseases, University of California, Los Angeles, Los Angeles, CA, 6Friends Community Center, Friends Research Institute, Inc, Los Angeles, CA, 7School of Medicine, Division of Infectious Diseases, University of California, Los Angeles, Los Angeles, CA

Julia A. Schillinger, MD, MSc, Bureau of STD Control, New York City Department of Health and Mental Hygiene, New York, NY and Preeti Pathela, PhD, NYC Department of Health and Mental Hygiene, Bureau of STD Control, The New York City Department of Health and Mental Hygiene, New York, NY

Julius Schachter, PhD¹, Jeanne Moncada, MT¹, Andrew Rogèr, BS¹, Leah Rauch, CLS², Sally Liska, DrPH², Clara Shayevich, NP³ and Jeffrey D. Klausner, MD³, 1Department of Laboratory Medicine, University of California, San Francisco, San Francisco, CA, 2Public Health Lab, San Francisco Department of Public Health, San Francisco, CA, 3STD Prevention and Control Services, San Francisco Department of Public Health, San Francisco, CA

Marjorie Lee, MPH, Health and Human Services Agency, County of San Diego, HIV, STD, and Hepatitis Branch, San Diego, CA, Tom Gray, BS, STD Control Branch, California Department of Public Health, San Diego, CA and Kenneth A. Katz, MD, MSc, MSCE, HIV, STD, and Hepatitis Branch, County of San Diego, San Diego, CA

Preeti Pathela, DrPH, Bureau of STD Control, The New York City Department of Health and Mental Hygiene, New York, NY, Susan Blank, MD, MPH, Bureau of STD Control and Prevention, US Centers for Disease Control and Prevention, NYC Department of Health & Mental Hygiene, New York, NY and Julia A. Schillinger, MD, MSc, US Centers for Disease Control and Prevention, The New York City Department of Health and Mental Hygiene, New York, NY

Binh Goldstein, PhD, Sarah Guerry, MD, Melina Boudov, MA, Ali Stirland, MBChB, MSc, Getahun Aynalem, MD, MPH, Peter Kerndt, MD, MPH and Harlan Rotblatt, BA, Sexually Transmitted Disease Program, Los Angeles County Department of Public Health, Los Angeles, CA