Distribution of triatomine species in domestic and peridomestic environments in central coastal Ecuador

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dc.careerEscuela de Ciencias Biológicases
dc.category.authorprincipalen_US
dc.contributor.authorBaus Carrera, Esteban Guillermo
dc.contributor.authorGrijalva Cobo, Mario Javier
dc.contributor.authorMoncayo Benalcázar, Ana Lucía
dc.contributor.authorOcaña Mayorga, Sofía Beatriz
dc.contributor.authorVillacis Salazar, Anita Gabriela
dc.contributor.authorYumiseva Marín, César Alberto
dc.contributor.correspondingBaus Carrera, Esteban Guillermo
dc.countryEcuadores
dc.date.accessioned2023-11-04T21:48:55Z
dc.date.available2023-11-04T21:48:55Z
dc.date.issued2017
dc.dedication.authorTCes
dc.description.abstractBackground: Although the central coast of the Ecuador is considered endemic for Chagas disease, few studies have focused on determining the risk of transmission in this region. In this study we describe the triatomine household infestation in Manabí province (Central Coast region), determine the rate of Trypanosoma cruzi infection and study the risk factors associated with infestation by Rhodnius ecuadoriensis. Methodology/principal findings: An entomological survey found three triatomine species (Rhodnius ecuadoriensis, Panstrongylus rufotuberculatus and P. howardi) infesting domiciles in 47.4% of the 78 communities visited (total infestation rate of 4.5%). Four percent of domiciles were infested, and nymphs were observed in 77% of those domiciles. The three species were found in altitudes below 500 masl and in all ecological zones except cloud forest. Within the domicile, we found the three species mostly in bedrooms. Rhodnius ecuadoriensis and P. rufotuberculatus were abundant in bird nests, including chicken coops and P. howardi associated with rats in piles of bricks, in the peridomicile. Triatomine infestation was characterized by high rates of colonization, especially in peridomicile. Flagelates infection was detected in only 12% of the samples by microscopy and Trypanosoma cruzi infection in 42% of the examined triatomines by PCR (n = 372). The most important risk factors for house infestation by R. ecuadoriensis were ecological zone (w = 0.99) and presence of chickens (w = 0.96). Determinants of secondary importance were reporting no insecticide applications over the last twelve months (w = 0.86) and dirt floor (w = 0.70). On the other hand, wood as wall material was a protective factor (w = 0.85). Conclusion/significance: According the results, approximately 571,000 people would be at high risk for T. cruzi infection in Manabí province. A multidisciplinary approximation and the adhesion to a periodic integrated vector management (IVM) program are essential to guarantee sustainable preventive and control strategies for Chagas disease in this region.en_US
dc.facultyCiencias Exactas y Naturaleses
dc.id.author2000029690
dc.id.author1708757742
dc.id.author1711447993
dc.id.author1711850931
dc.id.author1706504535
dc.id.author1709331571
dc.id.type1
dc.identifier.doihttps://doi.org/10.1371/journal.pntd.0005970
dc.identifier.issn1935-2735
dc.identifier.urihttps://repositorio.puce.edu.ec/handle/123456789/6264
dc.identifier.urihttps://pubmed.ncbi.nlm.nih.gov/28968383/
dc.indexed.databaseScimago Journal Rankes
dc.language.isoen
dc.list.authorsGrijalva, M., Villacís, A., Moncayo, A., Ocaña-Mayorga, S., Yumiseva, C. y Baus, E.
dc.magazine.pageRange1-14
dc.magazine.titlePLOS Neglected Tropical Diseasesen_US
dc.magazine.volumeChapter11(10)
dc.rightsOpenAccessen
dc.statepublisheden_US
dc.subjectEnfermedad de Chagases
dc.subjectEpidemiologíaes
dc.subjectEntomologíaes
dc.subjectEnfermedad de Chagas
dc.subjectEpidemiología
dc.subjectEntomología
dc.titleDistribution of triatomine species in domestic and peridomestic environments in central coastal Ecuadoren_US
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