1. ICMR-National Institute for Research in Tuberculosis, Chennai, India.
2. Division of Microbiology/Infectious Diseases Unit, St. Johns Research Institute, Bangalore, India.
3. Department of Pediatrics, Indira Gandhi Institute of Child Health, Bangalore, India.
4. Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA.
5. Public Health Division, World Health Organization, Geneva, Switzerland.