1. Division of Infectious Diseases, Department of Internal Medicine, The Ohio State University College of Medicine, Columbus, Ohio, USA
2. Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, USA
3. Department of Microbiology and Immunology, Emory University School of Medicine, Atlanta, Georgia, USA
4. Meningitis and Vaccine Preventable Diseases Branch, Division of Bacterial Diseases, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
5. Sexual Health Clinic, Columbus Public Health, Columbus, Ohio, USA