2014
DOI: 10.4269/ajtmh.13-0251
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Abstract: Abstract. We conducted a cross-sectional survey of Trypanosoma cruzi infection of Triatoma infestans as well as dogs and cats in 327 households from a well-defined rural area in northeastern Argentina to test whether the household distribution of infection differed between local ethnic groups (Tobas and Creoles) and identify risk factors for host infection. Overall prevalence of infection of bugs (27.2%; 95% confidence interval = 25.3-29.3%), dogs (26.0%; 95% confidence interval = 23.3-30.1%), and cats examine… Show more

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Cited by 40 publications
(62 citation statements)
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“…In the multivariate analysis, human infection was significantly associated with the household number of infected people and the baseline abundance of infected domestic bugs. A strong association between the relative abundance of infected domestic bugs and the seroprevalence of T. cruzi infection in domestic dogs was recorded previously [20]. These results support the occurrence of vector-borne transmission before the intervention programme and point to the significant contributions of chronically infected people jointly with domestic dogs or cats to the maintenance of domestic parasite transmission.…”
Section: Discussionsupporting
confidence: 82%
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“…In the multivariate analysis, human infection was significantly associated with the household number of infected people and the baseline abundance of infected domestic bugs. A strong association between the relative abundance of infected domestic bugs and the seroprevalence of T. cruzi infection in domestic dogs was recorded previously [20]. These results support the occurrence of vector-borne transmission before the intervention programme and point to the significant contributions of chronically infected people jointly with domestic dogs or cats to the maintenance of domestic parasite transmission.…”
Section: Discussionsupporting
confidence: 82%
“…[16, 18, 20]). In our study area, the median goat-equivalent index of Creole households was 25 times larger than Qom’s.…”
Section: Discussionmentioning
confidence: 99%
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“…The disturbed area (a rural section of 450 km 2 ) was described elsewhere (Orozco et al, 2013); small patches of native forest were close to the houses, usually subjected to intense human pressure. The prevalence of house infestation with T. infestans was 46% (Gurevitz et al, 2013) and the infection with T. cruzi was high (22-29%) in domestic bugs, dogs and cats (Cardinal et al, 2014) before a community-wide residual insecticide spraying conducted in November 2007.…”
Section: Methodsmentioning
confidence: 99%
“…Domestic dogs (Canis lupus familiaris) are important reservoirs of T. cruzi and contribute to the domestic transmission of the disease owing to their proximity to men (Pineda et al, 2011;Enríquez et al, 2013;Ramírez et al, 2013). Their role as a reservoir and risk factor in the transmission of the pathogen to humans has been studied in different regions (Crisante et al, 2006;Rojas et al, 2008;Portugal-García et al, 2011;Cardinal et al, 2014), suggesting good sentinels of this parasitic disease. In Chile this scenario has not yet been evaluated.…”
Section: Introductionmentioning
confidence: 99%