1. Peter F. Rebeiro is with the Department of Biostatistics and the Division of Infectious Diseases, Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN. April C. Pettit and Timothy R. Sterling are with the Division of Infectious Diseases, Department of Medicine, Vanderbilt University School of Medicine. Lindsey Sizemore, Samantha A. Mathieson, and Carolyn Wester are with the HIV/STD/Viral Hepatitis Program, Tennessee Department of Health, Nashville. Aaron Kipp is with the...