About the Authors
Royal Tropical Institute (Koninklijk Instituut voor de Tropen), Amsterdam, The Netherlands
Institute of Tropical Medicine (ITM), Antwerp, Belgium
Banaras Hindu University, Varanasi, India
UNICEF/UNDP/World Bank/World Health Organization Special Programme for Research and Training in Tropical Diseases (TDR), Geneva, Switzerland
The authors have declared that no competing interests exist.
Conceived and designed the experiments: EA DJ MB JC. Performed the experiments: DJ GS. Analyzed the data: EA DJ GS KG MB JC. Contributed reagents/materials/analysis tools: DJ GS. Wrote the paper: EA DJ GS KG MB JC. Performed refresher training: EA GS KG.