1. Tuberculosis Control Branch, California Department of Public Health, Richmond, California, USA
2. Division of Infectious Diseases, University of California, San Francisco, San Francisco, California, USA
3. Division of Tuberculosis Elimination, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
4. Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
5. Division of Infectious Disease, Oregon Health and Science University, Portland, Oregon, USA