House-level risk factors for triatomine infestation in Colombia

Campbell-Lendrum, DH; Angulo, Vı́ctor Manuel; Esteban, Laura Y.; Tarazona, Zorayda; Parra, Gabriel Jaime; Restrepo, Marco; Restrepo, Bertha Nelly; Guhl, Felipe; Pinto, Néstor; Aguilera, Germán; Wilkinson, Paul; Davies, Clive R.

doi:10.1093/ije/dym065

Cited by 53 publications

(66 citation statements)

References 26 publications

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“…These building materials have been previously identified as risk factors for Chagas disease in Colombia and other countries [34][35][36][37][38][39][40] and might explain the proportions of houses with presence of vectors found in these communities because the number of houses constructed with these materials is higher in Seminke, followed by Marocazo, and finally by Sabana de Joaquina.…”

Section: Discussionmentioning

confidence: 99%

Eco-Epidemiology of Chagas Disease in an Endemic Area of Colombia: Risk Factor Estimation, Trypanosoma cruzi Characterization and Identification of Blood-Meal Sources in Bugs

Peña-García

Gómez-Palacio

Triana-Chávez

et al. 2014

The American Society of Tropical Medicine and Hygiene

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Abstract. The Sierra Nevada de Santa Marta (SNSM) is a mountainous area in Colombia that is highly endemic to Chagas disease. We explored some eco-epidemiological attributes involved in the Chagas disease transmission scenario in three Indigenous communities. An epidemiological survey was done, where parasite infection in reservoirs and insects, Trypanosoma cruzi genotyping, identification of blood-meal sources in intradomiciliary insects using the high-resolution melting technique, and some risk factors were evaluated. The results suggest that several dwelling conditions such as thatched palm roofs and mud walls carried the highest risk of finding intradomiciliary Rhodnius prolixus, which 56.41% were infected with T. cruzi and fed with human blood. Moreover, T. cruzi Ia was the most frequent haplotype found in insects. These results indicate the existence of a domestic T. cruzi transmission cycle that does not overlap with the sylvatic cycle, and highlight the need for efficient entomological control focused to this area.

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Section: Discussionmentioning

confidence: 99%

Eco-Epidemiology of Chagas Disease in an Endemic Area of Colombia: Risk Factor Estimation, Trypanosoma cruzi Characterization and Identification of Blood-Meal Sources in Bugs

Peña-García

Gómez-Palacio

Triana-Chávez

et al. 2014

The American Society of Tropical Medicine and Hygiene

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“…Housing conditions have been investigated in Colombia as risk factors associated with the presence of triatomines inside households. 24 Although our study explored the association with a different but related outcome (T. cruzi infection), some variables, such as having animals inside the houses, could be related to infections in households.…”

Section: Discussionmentioning

confidence: 99%

Prevalence and Risk Factors for Chagas Disease in Pregnant Women in Casanare, Colombia

Cucunubá

Flórez²,

Cárdenas³

et al. 2012

The American Society of Tropical Medicine and Hygiene

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Abstract. Knowledge of the prevalence and risk factors associated with maternal infection is the first step to develop a surveillance system for congenital transmission of Chagas disease. We conducted a cross-sectional study in Casanare, a disease-endemic area in Colombia. A total of 982 patients were enrolled in the study. A global prevalence of Trypanosoma cruzi infection of 4.0% (95% confidence interval [CI] = 2.8-5.3%) was found. Multivariate analysis showed that the most important risk-associated factors were age 29 years (adjusted odds ratio [aOR] = 3.4, 95% CI = 0.9-12.4), rural residency (aOR = 2.2, 95% CI = 1.0-4.6), low education level (aOR = 10.2, 95% CI = 1.6-82.7), and previous knowledge of the vector (aOR = 2.2, 95% CI = 1.0-4.9). Relatives and siblings of infected mothers showed a prevalence of 9.3%. These findings may help physicians to investigate congenital cases, screen Chagas disease in siblings and relatives, and provide early treatment to prevent the chronic complications of Chagas disease.

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“…8,[11][12][13][14][15][16][17] A study carried out in Colombia to evaluate the house-level risk factors for triatomine infestation showed that domestic infestation is associated with over seven inhabitants (odds ratio [OR] = 1.24, 95% confidence interval [95% CI] = 1.11-1.39), overhead storage space (OR = 1.16, 95% CI = 1.03-1.32), a grain shed (OR = 1.25, 95% CI = 1.02-1.52), and the presence of cats (OR = 1.27, 95% CI = 1.14-1.42). 18 In Colombia, T. dimidiata has a great capacity to adapt to different environments, including sylvatic ecotypes, such as caves, rocks, tree holes, palms, and vertebrates' nests, in wet and dry zones and over a wide altitudinal range. It tends to inhabit urban and periurban areas because of its attraction to lights.…”

Section: Introductionmentioning

confidence: 99%

House-Level Risk Factors for Triatoma dimidiata Infestation in Colombia

Parra-Henao¹,

Segura-Cardona²,

Quirós-Gómez³

et al. 2015

The American Society of Tropical Medicine and Hygiene

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Abstract. In Colombia, the main vectors of Trypanosoma cruzi, the causative agent of Chagas disease, are Rhodnius prolixus and Triatoma dimidiata. T. dimidiata is present in the east region of Colombia as domestic, peridomestic, and sylvatic populations, resulting in difficulties for its control. A cost-effective way to prioritize houses for treatment is to stratify houses based on risk factors. In this study, risk factors were evaluated for potential associations with domicile infestation of T. dimidiata. There was an increased likelihood of domestic infestation associated with the presence of mixed roofs (odds ratio [OR] = 36.14, 95% confidence interval [95% CI] = 12.21-106.97), cats (OR = 3.94, 95% CI = 1.36-11.38), rock piles (OR = 5.28, 95% CI = 1.64-16.98), and bushes with height above 10 m (OR = 11.21, 95% CI = 2.08-60.45). These factors could be used to target surveillance and control of T. dimidiata to houses with an increased risk of being infested.

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House-level risk factors for triatomine infestation in Colombia

Cited by 53 publications

References 26 publications

Eco-Epidemiology of Chagas Disease in an Endemic Area of Colombia: Risk Factor Estimation, Trypanosoma cruzi Characterization and Identification of Blood-Meal Sources in Bugs

Eco-Epidemiology of Chagas Disease in an Endemic Area of Colombia: Risk Factor Estimation, Trypanosoma cruzi Characterization and Identification of Blood-Meal Sources in Bugs

Prevalence and Risk Factors for Chagas Disease in Pregnant Women in Casanare, Colombia

House-Level Risk Factors for Triatoma dimidiata Infestation in Colombia

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