scholarly journals The initial success of the Chagas' Disease Control Program: factors contributing to Triatomine infestation

1992 ◽  
Vol 8 (4) ◽  
pp. 391-403 ◽  
Author(s):  
Millicent Fleming-Moran
Keyword(s):  
Chagas Disease ◽  
Control Program ◽  
Triatoma Infestans ◽  
Linear Regression Models ◽  
Disease Vector ◽  
Disease Control Program ◽  
Household Crowding ◽  
Favorable Conditions ◽  
House Infestation ◽  
Regional Comparisons

While the control of the major Chagas' disease vector Triatoma infestans has been achieved in many endemic areas of Brazil, data from the inception of the control program in the Triângulo Mineiro (1976-79) suggest that re-infestation by triatomines occurs under certain favorable conditions. The percentage of houses infested in 500 communities of the Triângulo Mineiro region is compared for two years: 1976 and 1979, using linear regression models. Controlling for three major triatomine vectors, household crowding, house demolition and construction, and infested out-buildings are all independent covariates of house infestation in these communities. While several household factors have been suggested as correlates of infestation, the control program focuses on community-level reductions in infestation, but intra-community or regional comparisons have heretofore been unfeasible. Computerized data are becoming available to identify communities at high risk for re-infestation, and for targeting control-program activities.

scholarly journals A motorized vehicle-mounted sprayer as a new tool for Chagas disease vector control

2017 ◽  
Vol 33 (1) ◽  
Author(s):  
Ana Laura Carbajal-de-la-Fuente ◽  
◽  
Patricia Lencina ◽  
Cynthia Spillmann ◽  
Ricardo Esteban Gürtler ◽  
...  
Keyword(s):  
Vector Control ◽  
Chagas Disease ◽  
Main Tool ◽  
Control Program ◽  
Triatoma Infestans ◽  
Physical Effort ◽  
Chagas Disease Vectors ◽  
Vector Control Program ◽  
Randomized Intervention ◽  
House Infestation

Abstract: Residual insecticide spraying still is the main tool used to suppress house infestations with Chagas disease vectors. While manual compression sprayers (MCS) have traditionally been used in Latin America, Mendoza's vector control program from Argentina introduced the use of a modified motorized vehicle-mounted sprayer (VMS) with apparent advantages over MCS. We conducted a randomized intervention trial to evaluate the effectiveness and selected components of the performance of MCS and VMS. We assessed house infestation by Triatoma infestans in 76 previously-infested houses at 0, 1, 4 and 12 months postintervention. Infestations were reduced substantially, with no significant differences between treatments. End-point infestations were restricted to peridomiciles. Although VMS required less time to complete the house spraying than MCS, both treatments had similar performance and did not suppress infestations completely. The main relative advantages of VMS were a reduced physical effort, especially under harsh field conditions, and potential gains in spray coverage per unit of time.

scholarly journals Molecular Population Genetics and Evolution of the Chagas’ Disease Vector Triatoma infestans (Hemiptera: Reduviidae)

2013 ◽  
Vol 14 (5) ◽  
pp. 316-323 ◽  
Author(s):  
Beatriz García ◽  
Alicia R. Pérez Rosas ◽  
María Blariza ◽  
Carla Grosso ◽  
Cintia Fernández ◽  
...  
Keyword(s):  
Population Genetics ◽  
Chagas Disease ◽  
Triatoma Infestans ◽  
Disease Vector ◽  
Molecular Population Genetics

scholarly journals Intensified Surveillance and Insecticide-based Control of the Chagas Disease Vector Triatoma infestans in the Argentinean Chaco

2013 ◽  
Vol 7 (4) ◽  
pp. e2158 ◽  
Author(s):  
Juan M. Gurevitz ◽  
María Sol Gaspe ◽  
Gustavo F. Enriquez ◽  
Yael M. Provecho ◽  
Uriel Kitron ◽  
...  
Keyword(s):  
Chagas Disease ◽  
Triatoma Infestans ◽  
Disease Vector

scholarly journals Positive deviance study to inform a Chagas disease control program in southern Ecuador

2015 ◽  
Vol 110 (3) ◽  
pp. 299-309 ◽  
Author(s):  
Claudia Nieto-Sanchez ◽  
Esteban G Baus ◽  
Darwin Guerrero ◽  
Mario J Grijalva
Keyword(s):  
Disease Control ◽  
Chagas Disease ◽  
Control Program ◽  
Positive Deviance ◽  
Disease Control Program ◽  
Southern Ecuador

scholarly journals Triatomine Fauna and Recent Epidemiological Dynamics of Chagas Disease in an Endemic Area of Northeast Brazil

2018 ◽  
Vol 2018 ◽  
pp. 1-13 ◽  
Author(s):  
Cláudia M. Melo ◽  
Ana Carla F. G. Cruz ◽  
Antônio Fernando V. A. Lima ◽  
Luan R. Silva ◽  
Rubens R. Madi ◽  
...  
Keyword(s):  
Trypanosoma Cruzi ◽  
Disease Control ◽  
Chagas Disease ◽  
Control Program ◽  
The State ◽  
Positive Serology ◽  
Serological Tests ◽  
Systemic Analysis ◽  
South Central ◽  
Disease Control Program

Updated information of the dispersion dynamics of Chagas disease (CD) and a systemic analysis of these data will aid the early identification of areas that are vulnerable to transmission and enable efficient intervention. This work synthesized spatiotemporal information regarding triatomine fauna and analyzed this information in combination with the results from serological tests to elucidate the epidemiological panorama of CD in the state of Sergipe, Brazil. This is a retrospective analytical study that utilized information from the database of the National Chagas Disease Control Program. Between 2010 and 2016, 838 triatomines of eight species, namely, Panstrongylus geniculatus, which was first recorded in the state of Sergipe, Panstrongylus lutzi, P. megistus, Triatoma brasiliensis, T. pseudomaculata, T. tibiamaculata, T. melanocephala, and Rhodnius neglectus, were collected. Optical microscopy revealed that 13.2% of triatomines examined were infected by Trypanosoma cruzi-like flagellates. The distribution of triatomines exhibits an expanding south-central to northern dispersion, with a preference for semiarid and agreste areas and occasional observations in humid coastal areas due to anthropogenic actions reflected in the environment. Of the human cases analyzed from 2012 to 2016, 8.3% (191/2316) presented positive serology for Trypanosoma cruzi, and this proportion showed a gradual increase in the southern center of the state and new notifications in coastal regions. There is a need for intensification and continuity of the measures adopted by the Chagas Disease Control Program in Sergipe, identifying new priority areas for intervention and preferential ecotopes of the vectors, considering the occurrence of positive triatomines intradomicilliary and a source of new triatomines in the peridomiciles.

Entomopathogenic nematodes (Heterorhabditidae and Steinernematidae), to control Triatoma infestans populations (Hemiptera: Reduviidae), Chagas disease vector

2021 ◽  
pp. 104814
Author(s):  
Daiana Pamela Eliceche ◽  
María Fernanda Achinelly ◽  
Carlos Silvestre ◽  
María Victoria Micieli ◽  
Gerardo Aníbal Marti
Keyword(s):  
Chagas Disease ◽  
Entomopathogenic Nematodes ◽  
Triatoma Infestans ◽  
Disease Vector

scholarly journals Effectiveness of Large-Scale Chagas Disease Vector Control Program in Nicaragua by Residual Insecticide Spraying Against Triatoma dimidiata

2015 ◽  
Vol 93 (6) ◽  
pp. 1231-1239 ◽  
Author(s):  
Kota Yoshioka ◽  
Jiro Nakamura ◽  
Lenin Pérez ◽  
Yuichiro Tabaru ◽  
Doribel Tercero ◽  
...  
Keyword(s):  
Vector Control ◽  
Chagas Disease ◽  
Large Scale ◽  
Control Program ◽  
Disease Vector ◽  
Vector Control Program
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