@article{fdi:010057158,
  title = {{P}opulation dynamics of {A}nopheles gambiae s.l. in {B}obo-{D}ioulasso city : bionomics, infection rate and susceptibility to insecticides},
  author = {{D}abir{\'e}, {R}. {K}. and {N}amountougou, {M}. and {S}awadogo, {S}. {P}. and {Y}aro, {L}. {B}. and {T}o{\'e}, {H}. {K}. and {O}uari, {A}. and {G}ouagna, {L}ouis-{C}l{\'e}ment and {S}imard, {F}r{\'e}d{\'e}ric and {C}handre, {F}abrice and {B}aldet, {T}hierry and {B}ass, {C}. and {D}iabat{\'e}, {A}.},
  editor = {},
  language = {{ENG}},
  abstract = {{B}ackground: {H}istorical studies have indicated that {A}n. gambiae s.s. is the predominant malaria vector species in {B}obo-{D}ioulasso the second biggest city of {B}urkina {F}aso ({W}est {A}frica). {H}owever, over the last decade, {A}n. arabiensis appears to be replacing {A}n. gambiae s.s. as the most prevalent malaria vector in this urban setting. {T}o investigate this species transition in more detail the present study aims to provide an update on the malaria vector composition in {B}obo-{D}ioulasso, and also the {P}lasmodium infection rates and susceptibility to insecticides of the local {A}n. gambiae s.l. population. {M}ethods: {A}n entomological survey was carried out from {M}ay to {D}ecember 2008 in {D}ioulassoba and {K}odeni (central and peripheral districts respectively), which are representative of the main ecological features of the city. {S}ampling consisted of the collection of larval stages from water bodies, and adults by monthly indoor residual spraying ({IRS}) using aerosol insecticides. {I}nsecticide susceptibility tests were performed using the {WHO} filter paper protocol on adults emerged from larvae. {PCR} was used to determine vector species and to identify resistance mechanisms (kdr and ace-1({R})). {T}he {P}lasmodium infection rate was estimated by {ELISA} performed on female mosquitoes collected indoors by {IRS}. {R}esults: {A}n. arabiensis was found to be the major malaria vector in {B}obo-{D}ioulasso, comprising 50 to 100% of the vector population. {T}he sporozoite infection rate for {A}n. arabiensis was higher than {A}n. gambiae s.s. at both {D}ioulassoba and {K}odeni. {A}n. gambiae s.l. was resistant to {DDT} and cross-resistant to pyrethroids at the two sites with higher levels of resistance observed in {A}n. gambiae s.s. than {A}n. arabiensis. {R}esistance to 0.1% bendiocarb was observed in the {A}n. gambiae s.s. {S} form but not the {M} form or in {A}n. arabiensis. {T}he {L}1014{F} kdr mutation was detected in the two molecular forms of {A}n. gambiae s.s. at varying frequencies (0.45 to 0.92), but was not detected in {A}n. arabiensis, suggesting that other mechanisms are involved in {DDT} resistance in this species. {T}he ace-1({R}) mutation was only detected in the {S} molecular form and was observed at the two sites at similar frequency (0.3). {C}onclusions: {O}ver the last ten years, {A}n. arabiensis has become the major malaria vector in {B}obo-{D}ioulasso city where it was formerly present only at low frequency. {H}owever, the ecological determinant that enhances the settlement of this species into urban and peri-urban areas of {B}obo-{D}ioulasso remains to be clarified. {T}he impact of the changing {A}n. gambiae s.l. population in this region for vector control including resistance management strategies is discussed.},
  keywords = {{M}alaria ; {A}nopheles gambiae s.l. ; {A}n. arabiensis ; {I}nsecticide resistance ; {B}obo-{D}ioulasso ; {B}urkina {F}aso},
  booktitle = {},
  journal = {{P}arasites and {V}ectors},
  volume = {5},
  numero = {},
  pages = {127},
  ISSN = {1756-3305},
  year = {2012},
  DOI = {10.1186/1756-3305-5-127},
  URL = {https://www.documentation.ird.fr/hor/fdi:010057158},
}