Risk factors associated with Trypanosoma cruziexposure in domestic dogs from a rural community in Panama
Mem. Inst. Oswaldo Cruz
;
110(7): 936-944, Nov. 2015. tab, graf
Article
in English
| LILACS
| ID: lil-764584
ABSTRACT
Chagas disease, caused by Trypanosoma cruziinfection, is a zoonosis of humans, wild and domestic mammals, including dogs. In Panama, the main T. cruzivector is Rhodnius pallescens, a triatomine bug whose main natural habitat is the royal palm, Attalea butyracea. In this paper, we present results from three T. cruziserological tests (immunochromatographic dipstick, indirect immunofluorescence and ELISA) performed in 51 dogs from 24 houses in Trinidad de Las Minas, western Panama. We found that nine dogs were seropositive (17.6% prevalence). Dogs were 1.6 times more likely to become T. cruziseropositive with each year of age and 11.6 times if royal palms where present in the peridomiciliary area of the dog’s household or its two nearest neighbours. Mouse-baited-adhesive traps were employed to evaluate 12 peridomestic royal palms. All palms were found infested with R. pallescenswith an average of 25.50 triatomines captured per palm. Of 35 adult bugs analysed, 88.6% showed protozoa flagellates in their intestinal contents. In addition, dogs were five times more likely to be infected by the presence of an additional domestic animal species in the dog’s peridomiciliary environment. Our results suggest that interventions focused on royal palms might reduce the exposure to T. cruzi infection.
Full text:
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Index:
LILACS (Americas)
Main subject:
Triatominae
/
Chagas Disease
/
Dog Diseases
/
Insect Vectors
Type of study:
Diagnostic study
/
Etiology study
/
Prevalence study
/
Risk factors
Limits:
Animals
Country/Region as subject:
Central America
/
Panama
Language:
English
Journal:
Mem. Inst. Oswaldo Cruz
Journal subject:
Tropical Medicine
/
Parasitology
Year:
2015
Type:
Article
/
Project document
Affiliation country:
Panama
Institution/Affiliation country:
Instituto Conmemorativo Gorgas de Estudios de Salud/PA
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