Dr Raphael N'Guessan


Assistant Professor
in Medical Entomology

Keppel Street
United Kingdom

+229 95 05 09 71

Raphael currently holds a Lecturer position in Medical Entomology within the Disease Control Department of the London School of Hygiene & Tropical Medicine (LSHTM). He has a Masters in Control of Infectious Diseases from LSHTM and a PhD in Medical Entomology from Wageningen University & Research, in Holland.

Initially, he developed as a civil engineer in road construction in a High School of engeering in Ivory Coast, his homeland. He began his Entomology career in 1997 within the Institut Pierre Richet (IPR) and the  French Research Institute (IRD) where he learned all the technical aspects involved in the phase I&II steps of the WHO Pesticide Evaluation Scheme (WHOPES).  

Raphael joined the school in October 2002 and he was first based in Ivory coast where he managed vast vector control programmes with specific  emphasis on malaria vector resistance in West Africa and the development of new tools to overcome it.

In 2004, he engaged with a local collaborator (CREC) in Benin, built up and trained technical team from scratch, built a laboratory and suites of experimental huts for the evaluation of novel products.

During the last decades, Raphael has actively engaged with the Innovative Vector Control Consortium and private sector manufacturers on vector control product development. He has worked with the WHOPES for over 16 years on the evaluation of mosquito control products, and he recently joined the WHO Technical Expert Group as a consulting member on Malaria Vector Control. He is also a member of the WHO Roll Back Malaria Vector Control Working Group and a member of the Pan-African Vector Research Consortium, which encompasses several research institutions in East Tanzania (Muheza, Moshi, Muleba) and West Africa (Benin and Ivory Coast) for testing innovative vector control products that would overcome insecticide resistance in sub saharan Africa.



Department of Disease Control
Faculty of Infectious and Tropical Diseases



Raphael is involved in the academic tutoring of Distance Learning Masters students from LSHTM in specific areas that involve malaria vector control. He supervises MSc students from the school, the University of Abomey Calavi in Benin and provides field supervision of PhD students from LSHTM, Wageningen University & Research and the University of Benin.




Raphael is actively busy evaluating new vector control tools which involves  innovative LLINs that combine two or more active ingredients or synergists on nets to overcome resistance, on behalf of the WHO Pesticide Evaluation Scheme (WHOPES).

He conducts Phase I &II trials of LLINs efficacy, wash resistance and Long lasting IRS formulation trials in experimental huts and household randomized evaluation of these.

He undertakes directly commissioned studies (laboratory, experimental hut and village household) of novel prototype or commercial products sponsored by manufacturing industry.

Currently he is involved in a consortium lliaising with WHO, the Gates foundation and the malaria control programme in Benin to investigate the impact of pyrethroid resistance on the effectiveness of Insecticide Treated Nets being widely distributed to protect communities against malaria.

Raphael also provides expertise, consultation and support for decision making within the Ministry of Health in Benin in matters relating to vector resistance and appropriate choices of vector control tools for the National Malaria Control Programme..


Research Area
Vector biology
Disease and Health Conditions
Vector borne disease
Burkina Faso
Cote d'Ivoire
Sub-Saharan Africa (developing only)

Selected Publications

Indoor residual spraying for prevention of malaria.
N'Guessan, R.; Rowland, M.;
Lancet Infect Dis
Loss of household protection from use of insecticide-treated nets against pyrethroid-resistant mosquitoes, benin.
Asidi, A. ; N'Guessan, R. ; Akogbeto, M. ; Curtis, C. ; Rowland, M. ;
Emerg Infect Dis
Pyrethroid resistance in African anopheline mosquitoes: what are the implications for malaria control?
Ranson, H.; N'guessan, R.; Lines, J.; Moiroux, N.; Nkuni, Z.; Corbel, V.;
Trends Parasitol
Control of pyrethroid-resistant Anopheles gambiae and Culex quinquefasciatus mosquitoes with chlorfenapyr in Benin.
N'guessan, R.; Boko, P.; Odjo, A.; Knols, B.; Akogbeto, M.; Rowland, M.;
Trop Med Int Health
Evaluation of indoxacarb, an oxadiazine insecticide for the control of pyrethroid-resistant Anopheles gambiae (Diptera: Culicidae).
N'Guessan, R.; Corbel, V.; Bonnet, J.; Yates, A.; Asidi, A.; Boko, P.; Odjo, A.; Akogbéto, M.; Rowland, M.;
J Med Entomol
See all Dr Raphael N'Guessan's Publications