1. Center for Communicable Disease Dynamics, Department of Epidemiology, Harvard School of Public Health, Boston, Massachusetts, USA
2. Epidemiology of Microbial Diseases, Yale School of Public Health, New Haven, Connecticut, USA
3. Division of Infectious Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
4. The World Health Organization Collaborating Centre for Surveillance of Antimicrobial Resistance, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA
5. Department of Immunology and Infectious Diseases, Harvard School of Public Health, Boston, Massachusetts, USA