Field efficacy of a new deltamethrin long lasting insecticidal net (LifeNet(C)) against wild pyrethroid-resistant Anopheles gambiae in Benin Djènontin, A. /Moiroux, Nicolas Bouraima, A. Zogo, B. Sidick, I. /Corbel, Vincent /Pennetier, Cédric Deltamethrin Long lasting insecticidal net LifeNet(C) Pyrethroid-resistant Anopheles gambiae Benin Background: Malaria vector control is mostly based on Long-Lasting Insecticidal Nets (LLIN). To date, all LLINs fully recommended by the World Health Organization Pesticide Scheme (WHOPES) are made of polyester or polyethylene. In this context, a new LLIN named LifeNet(C), made of polypropylene fiber is developed. According to the manufacturer, LifeNet(C) is made of soft filament, has a greater mechanical strength, a superior insecticide wash resistance with a short insecticide regeneration time, a better flammability profile and a better environmental profile compared to polyester or polyethylene nets. Methods: Through a WHOPES supervised trial, the efficacy of LifeNet(C) was evaluated in Benin in experimental huts against free-flying wild mosquitoes. Results: LifeNet(C) has equal or better performances in terms of wash resistance, exophily, blood feeding inhibition and mortality compared to conventionally treated nets (CTN) treated with deltamethrin at 25 mg/m(2) and washed to just before exhaustion. Conclusions: The efficacy of LifeNet(C) observed in this trial indicates that this net fulfill World Health Organization Pesticide Scheme (WHOPES) requirement for Long Lasting technology in Phase II. Throughout a Phase III trial currently ongoing in Southern Benin, the durability and the acceptability of this long-lasting insecticidal mosquito nets will be assessed under community conditions. 2018 text https://www.documentation.ird.fr/hor/fdi:010073722 fdi:010073722 Djènontin A., Moiroux Nicolas, Bouraima A., Zogo B., Sidick I., Corbel Vincent, Pennetier Cédric. Field efficacy of a new deltamethrin long lasting insecticidal net (LifeNet(C)) against wild pyrethroid-resistant Anopheles gambiae in Benin. 2018, 18, 947 [9 ] EN BENIN