2019
DOI: 10.1371/journal.pntd.0007430
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Human Trypanosoma cruzi infection is driven by eco-social interactions in rural communities of the Argentine Chaco

Abstract: The transmission of Trypanosoma cruzi to humans is determined by multiple ecological, socio-economic and cultural factors acting at different scales. Their effects on human infection with T. cruzi have often been examined separately or using a limited set of ecological and socio-demographic variables. Herein, we integrated the ecological and social dimensions of human infection risk with the spatial distribution patterns of human and vector (Triatoma infestans) infection in rural communities of the Argentine C… Show more

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Cited by 16 publications
(39 citation statements)
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“…The seroprevalence of T. cruzi in children aged �5 years has traditionally been used to monitor the impacts of vector control actions on domestic transmission (e.g., [47][48][49]. In our study, the seroprevalence of T. cruzi in children aged <5 years was 1.6% (95% CI, 0-9.1%), i.e., three, four and 11 times lower than the respective preintervention seroprevalence in Area III (5.4%), Area II and IV (6.1%), and Area I (17.9%) [13,31,37]. For example, Chile achieved a five-fold decrease in the seroprevalence of T. cruzi in children aged <5 years to 1.1% after 12 years of nation-wide vector control activities [50].…”
Section: Plos Neglected Tropical Diseasesmentioning
confidence: 48%
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“…The seroprevalence of T. cruzi in children aged �5 years has traditionally been used to monitor the impacts of vector control actions on domestic transmission (e.g., [47][48][49]. In our study, the seroprevalence of T. cruzi in children aged <5 years was 1.6% (95% CI, 0-9.1%), i.e., three, four and 11 times lower than the respective preintervention seroprevalence in Area III (5.4%), Area II and IV (6.1%), and Area I (17.9%) [13,31,37]. For example, Chile achieved a five-fold decrease in the seroprevalence of T. cruzi in children aged <5 years to 1.1% after 12 years of nation-wide vector control activities [50].…”
Section: Plos Neglected Tropical Diseasesmentioning
confidence: 48%
“…Whenever community-wide house spraying with insecticide is implemented without a consistent vector surveillance system, transient declines in the force of infection are followed by rapid recovery in the Argentine and Bolivian Chaco [14,85], and elsewhere [63]. Our current results, in a highly endemic area inhabited by vulnerable subgroups in heterogeneous rural communities [31], evince that interrupting vector-borne transmission of T. cruzi to humans in hyperendemic areas is feasible with the current means implemented systematically. Scaling up the intervention program, carefully tailored to local settings and paying due attention to the eventual emergence of pyrethroid resistance, is the next challenge.…”
Section: Plos Neglected Tropical Diseasesmentioning
confidence: 71%
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