BrenièreSimone FrédériqueauteurautIRDBossenoMarie-FranceauteurautIRDMagallon GastelumE.auteurautRuvalcabaE. G. C.auteurautGutierrezM. S.auteurautLunaE. C. M.auteurautBasultoJ.auteurautMathieu-DaudéFrançoiseauteurautIRDWalterAnnieauteurautIRDLozano KastenF.auteurauttextjournalArticletext/pdfborn digitalaccessInfestation of peridomiciles is likely a major risk factor for Chagas disease transmission in Jalisco state, Mexico. An entomological and serological survey of a typical village was conducted between July and September 2003. The peridomestic areas of 100 dwellings were visited and triatormines were searched manually in 369 potential sites. A total of 1821 Triatoma longipennis (93.2%) or Triatoma barberi was captured. Both species frequently occurred in sympatry. The infestation index was 60% for T longipennis and 16% for T barberi. T longipennis occurred throughout the village. Colonization indices were high for T longipennis (93%) and T barberi (75%), suggesting that both species have adapted to peridomestic habitats. The bug population size was larger for T longipennis than for T barberi. Five very large colonies of T longipennis were recorded whereas only 1 or 2 bugs were observed in 38% of the positive sites, which suggests intense dispersal activity. Both species exhibited high infection prevalence with Trypanosoma cruzi (46%). Only T cruzi lineage I was detected. Human seroprevalence was 1.8%. This study serves as an entomological overview of peridomiciliar triatomine colonization in a Mexican village and highlights the current risk of Chagas disease transmission.specializedperidomiciliar areaTriatoma longipennisTriatoma barberiseroprevalencerisk of transmissionMexico052 101324925720070001-706Xhttp://www.documentation.ird.fr/hor/fdi:01003798010.1016/j.actatropica.2007.02.007IRD BondyF B010037980http://www.documentation.ird.fr/hor/fdi:010037980http://www.documentation.ird.fr/intranet/publi/2007/07/010037980.pdfAccès réservé (Intranet de l'IRD)IRD - Base Horizon / Pleins textes2007-08-062010-08-04fdi:010037980fre