Heterogeneities in the Ecoepidemiology of Trypanosoma Cruzi Infection in Rural Communities of the Argentinean Chaco

Overview

Journal Am J Trop Med Hyg

Specialty Tropical Medicine

Date 2014 Apr 16

PMID 24732461

Citations 23

Authors

M Victoria Cardinal

M Marcela Orozco

Gustavo F Enriquez

Leonardo A Ceballos

Maria Sol Gaspe

Julian A Alvarado-Otegui

Juan M Gurevitz

Uriel Kitron

Ricardo E Gurtler

Affiliations

Soon will be listed here.

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 examined (28.7%; 95% confidence interval = 20.2-39.0%) was similar. A multimodel inference approach showed that infection in dogs was associated strongly with the intensity and duration of local exposure to infected bugs and moderately with household ethnic background. Overall, Toba households were at a substantially greater risk of infection than Creole households. The strong heterogeneities in the distribution of bug, dog, and cat infections at household, village, and ethnic group levels may be used for targeted vector and disease control.

Citing Articles

Estimation of Trypanosoma cruzi infection in the main vector Triatoma infestans: accounting for imperfect detection using site-occupancy models.

Cardinal M, Enriquez G, Gaspe M, Pilar Fernandez M, Capello V, Gurtler R Parasit Vectors. 2025; 18(1):58.

PMID: 39966871 PMC: 11834302. DOI: 10.1186/s13071-025-06693-3.

Eco-epidemiological Survey of Trypanosoma cruzi in Dogs from Mendoza, Argentina.

Morales M, Cimino R, Mackern-Oberti J, Munoz-San Martin C, Cattan P, Superina M Ecohealth. 2025; 22(1):79-90.

PMID: 39808379 DOI: 10.1007/s10393-024-01693-8.

Human Trypanosoma cruzi infection in the Argentinean Chaco: risk factors and identification of households with infected children for treatment.

Macchiaverna N, Enriquez G, Gaspe M, Rodriguez-Planes L, Martinez P, Gurtler R Parasit Vectors. 2024; 17(1):41.

PMID: 38287434 PMC: 10826042. DOI: 10.1186/s13071-024-06125-8.

The Pampa del Indio project: sustainable vector control and long-term declines in the prevalence and abundance of Triatoma infestans infected with Trypanosoma cruzi in the Argentine Chaco.

Gurtler R, Enriquez G, Gaspe M, Macchiaverna N, Pilar Fernandez M, Rodriguez-Planes L Parasit Vectors. 2023; 16(1):258.

PMID: 37528423 PMC: 10394798. DOI: 10.1186/s13071-023-05861-7.

Intestinal parasitic infections in a community from Pampa del Indio, Chaco (Argentina) and their association with socioeconomic and environmental factors.

Scavuzzo C, Delgado C, Goy M, Crudo F, Porcasi X, Periago M PLoS One. 2023; 18(6):e0285371.

PMID: 37384739 PMC: 10310042. DOI: 10.1371/journal.pone.0285371.

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