Martin J Donnelly1
, PJ McCall1
, Christian Lengeler2
, Imelda Bates1
, Umberto D'Alessandro3
, Guy Barnish1
, Flemming Konradsen4,5
, Eveline Klinkenberg1,6
, Harold Townson1
, Jean-Francois Trape7
, Ian M Hastings1
and Clifford Mutero8 
1Liverpool School of Tropical Medicine, Pembroke Place, Liverpool, L3 5QA. UK
2Swiss Tropical Institute, P.O. Box, 4002 Basel, Switzerland
3Prince Leopold Institute of Tropical Medicine, Nationalestraat 155, B-2000 Antwerp, Belgium
4International Water Management Institute Sri Lanka127, Sunil Mawatha, Pelawatte, Battaramulla, Sri Lanka
5Institute of Public Health, Department of International Health, University of Copenhagen, Blegdamsvej 32200 København, Denmark
6International Water Management Institute (West Africa), PMB CT 112, Cantonments, Accra, Ghana
7Institut de Recherche pour le Développement, BP 1386, CP 18524, Dakar, Sénégal
8Systemwide Initiative on Malaria and Agriculture, International Water Management Institute, Private Bag X813, Silverton 0127, South Africa