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 
1
LSE Health, London School of Economics, Houghton Street, London, UK
2
National Institute for Malariology, Parasitology and Entomology, Luong The Vinh street, BC 10200 Tu Liem District, Hanoi, Vietnam
3
Provincial Centre for Malariology, Parasitology and Entomology, 156 Ngo Gia Tu Street, Phan Rang city, Ninh Thuan Province, Vietnam
4
Prince Leopold Institute of Tropical Medicine, Nationalestraat 155, 2000 Antwerp, Belgium
5
Department of Public Health & Policy, London School of Hygiene & Tropical Medicine, Keppel Street, London, UK