A population-dynamics simulation model of the main vectors of Chagas' disease transmission, Rhodnius prolixus and Triatoma infestans

A stimulation model was developed to represent the population dynamics of two bugs (Triatoma infestans and Rhodnius prolixus ), which are the main vector species of Chagas' Disease in some Latin American countries. The model includes the infection process of bugs with the parasite causing the d...

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Bibliographic Details
Published in:Ecological modelling 1990-12, Vol.52 (3-4), p.249-266
Main Authors: RABINOVICH, J. E, HOMSCHOOT, P
Format: Article
Language:English
Subjects:
Animal, plant and microbial ecology
Biological and medical sciences
Fundamental and applied biological sciences. Psychology
Reduviidae
Rhodnius prolixus
Triatoma infestans
Trypanosoma cruzi
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Summary:A stimulation model was developed to represent the population dynamics of two bugs (Triatoma infestans and Rhodnius prolixus ), which are the main vector species of Chagas' Disease in some Latin American countries. The model includes the infection process of bugs with the parasite causing the disease (Trypanosoma cruzi ). Human and animal hosts for bugs (with a preference factor for each) were considered; bug migration between houses and between houses and the wild environment was also modelled; the three types of houses most common in rural areas were considered. The bugs' population regulation mechanisms were modelled acting over natality and mortality. Populations of both species showed sustained oscillations under certain conditions, with about two cycles per year for T. infestans and about four cycles per year for R. prolixus , and proportional to the length of each species' development time.
ISSN:0304-3800
1872-7026
DOI:10.1016/0304-3800(90)90019-D