@article{fdi:010025670,
  title = {{O}lyset {N}et({R}) efficacy against pyrethroid-resistant {A}nopheles gambiae and {C}ulex quinquefasciatus after 3 years' field use in {C}{\^o}te d'{I}voire},
  author = {{N}'{G}uessan, {R}. and {D}arriet, {F}r{\'e}d{\'e}ric and {D}oannio, {J}.{M}.{C}. and {C}handre, {F}abrice and {C}arnevale, {P}ierre},
  editor = {},
  language = {{ENG}},
  abstract = {{P}yrethroid-impreganted bednets are advocated for personal protection against malaria vectors. {T}o avoid the need for periodic re-treatment, it would be advantageous to have nets that retain insecticidal efficacy for years and withstand repeated washing. {S}uch a type of commercially produced bednet with permethrin 2% incorporated in polyethylene fibres (trademark {O}lyset {N}et({R}) supplied by {S}umika {L}ife-{T}ech {C}o., {O}saka, {J}apan) was evaluated against mosquitoes in veranda-trap huts at {Y}aokoffikro, near {B}ouak{\'e}, {C}{\^o}te d'{I}voire, by standard {WHOPES} phase {II} procedures. {F}our {O}lyset {N}ets were compared with a standard untreated polyester net as control. {T}hey comprised three examples previously used in a village for over 3 years (one washed, one dirty, one very dirty) and a previously unused {O}lyset {N}et newly unwrapped, from the same orignal batch. {B}ioassays with 3 min exposure of susceptible #{A}nopheles gambiae$ {G}iles ({D}iptera : {C}ulicidae) gave more than 99% mortality of female mosquitoes tested on the 'new' {O}lyset {N}et. {T}he used {O}lyset {N}ets gave mortality rates averaging 83% for the washed net, 85% for the dirty net and 55% for the very dirty net (within 24-h following 3 min exposure). {T}hus, {O}lyset {N}ets were found to remain remarkably effective against susceptible #{A}n. gambiae$ for at least 3 years under field conditions. {W}ild pyrethroid-resistant populations of #{C}ulex quinquefasciatus$ {S}ay and #{A}n. gambiae$ (savanna cytotype with 96% kdr) were assessed during {J}une-{A}ugust 1999 for their responses to sleepers protected by nets in the experimental huts. {W}ith regard to hut entry by foraging female mosquitoes, {O}lyset {N}ets showed some deterrency against #{A}n. gambiae$ (44% reduction by the new net, approximately 20% by the dirty nets, none by the washed net), but not against #{C}x. quinquefasciatus$. {A}mong mosquitoes entering the hut with untreated control net, 30-34% tried to leave (exophily) but were caught in the veranda trap... ({D}'apr{\`e}s r{\'e}sum{\'e} d'auteur)},
  keywords = {{PALUDISME} ; {VECTEUR} ; {MOUSTIQUE} ; {METHODE} {DE} {LUTTE} ; {MOUSTIQUAIRE} {IMPREGNEE} ; {INSECTICIDE} {CHIMIQUE} ; {EFFICACITE} ; {SENSIBILITE} {RESISTANCE} ; {PYRETHROIDE} ; {PERMETHRINE} ; {OLYSET} ; {COTE} {D}'{IVOIRE} ; {BOUAKE} {REGION}},
  booktitle = {},
  journal = {{M}edical and {V}eterinary {E}ntomology},
  volume = {15},
  numero = {1},
  pages = {97--104},
  ISSN = {0269-283{X}},
  year = {2001},
  DOI = {10.1046/j.1365-2915.2001.00284.x},
  URL = {https://www.documentation.ird.fr/hor/fdi:010025670},
}