Chantal M Morel1
, Ngo Duc Thang2
, Nguyen Xuan Xa2
, Le Xuan Hung2
, Le Khan Thuan2
, Pham Van Ky3
, Annette Erhart4
, Anne J Mills5
and Umberto D'Alessandro4 
1LSE Health, London School of Economics, Houghton Street, London, UK
2National Institute for Malariology, Parasitology and Entomology, Luong The Vinh street, BC 10200 Tu Liem District, Hanoi, Vietnam
3Provincial Centre for Malariology, Parasitology and Entomology, 156 Ngo Gia Tu Street, Phan Rang city, Ninh Thuan Province, Vietnam
4Prince Leopold Institute of Tropical Medicine, Nationalestraat 155, 2000 Antwerp, Belgium
5Department of Public Health & Policy, London School of Hygiene & Tropical Medicine, Keppel Street, London, UK