Institution: | (1) San Francisco Department of Public Health, Community Health and Epidemiology Section, Epidemiology and Effectiveness Research Unit, 101 Grove Street Suite 204, 94102 San Francisco, California, USA;(2) Center for Infectious Disease Preparedness, School of Public Health, University of California, Berkeley, USA;(3) Surveillance and Epidemiology Section, Tuberculosis Control Branch, Division of Communicable Disease Control, California Department of Health Services, Berkeley, California, USA |