About the Authors
MRC Laboratories, Bacterial Diseases Programme, Fajara, The Gambia
New York University Division of Infectious Diseases, New York, New York, United States of America
Institute for Tropical Medicine, Mycobacteriology Unit, Antwerp, Belgium
MRC National Institute for Medical Research, London, United Kingdom
Swiss Tropical and Public Health Institute, Basel, Switzerland
The authors have declared that no competing interests exist.