1. World Health Organization Collaborating Centre for Leishmaniasis, Laboratory of Medical Entomology, National Centre for Microbiology, Instituto de Salud Carlos III, Madrid, Spain;
2. International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka;
3. World Health Organization Collaborating Center for Leishmaniasis, Laboratory of Leishmaniasis and Chagas, National Centre for Microbiology, Instituto de Salud Carlos III, Madrid, Spain;
4. Drugs for Neglected Diseases Initiative, Geneva, Switzerland; and
5. Department of Epidemiology and Biostatistics, School of Medicine, University of California, San Francisco