Conhecimentos sobre triatomíneos e sobre a doença de Chagas em localidades com diferentes níveis de infestação vetorial

Dias, João Víctor Leite; Queiroz, Dimas Ramon Mota; Diotaiuti, Liléia; Pires, Herton Helder Rocha

doi:10.1590/1413-81232015217.07792015

Cited by 22 publications

(22 citation statements)

References 27 publications

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“…This recommendation should be tempered by four factors. First, although our conclusion agrees with researchers in other contexts who found no association between knowledge and home infestation [58,59], our research was limited to six communities nearby to each other. Other communities may reflect different or alternative associations than the ones in which we worked.…”

Section: Discussionsupporting

confidence: 90%

“…The connection between knowledge of CD and triatomine bugs to prevention is not always a direct one. For example, Dias et al [58] found that in Minas Gerais, Brazil, being able to identify triatomine bugs was not associated with home infestation and, further, that there was no association between knowledge of CD transmission mechanism and home infestation. Conversely, Donovan et al [59] found in La Hicaca, Honduras that communities with high knowledge have a high desire for prevention and testing, but did not assess an association with infestation rates or prevention practices.…”

Section: Discussionmentioning

confidence: 99%

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Determinants of intentions to prevent triatomine infestation based on the health belief model: An application in rural southern Ecuador

et al. 2020

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Introduction Control of triatomine infestation is a key strategy for the prevention of Chagas disease (CD). To promote this strategy, it is important to know which antecedents to behavioral change are the best to emphasize when promoting prevention. Objective The aim of this study was to determine predictors for intention to prevent home infestation based on the Health Belief Model (HBM), a commonly used health intervention planning theory. Materials & methods A cross-sectional study was conducted with 112 heads of household in six communities with endemic and high rates of triatomine infestation in Loja province, Ecuador. The data was collected by a questionnaire including perceived severity, susceptibility, benefits to action, barriers to action, and self-efficacy. These data were also used to predict actual infestation of homes. Results Community members reported strong intentions to prevent home infestation. HBM constructs predicted about 14% of the observed variance in intentions. Perceived susceptibility and severity did not predict behavioral intention well; perceived barriers to small-scale action that reduce likelihood of infestation and self-efficacy in participating in surveillance systems

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Section: Discussionsupporting

confidence: 90%

Section: Discussionmentioning

confidence: 99%

Determinants of intentions to prevent triatomine infestation based on the health belief model: An application in rural southern Ecuador

et al. 2020

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“…The lack of declining infestation and colonization rates in most of the years addressed in the study can be explained by the appearance of other diseases, such as dengue 26,50 and American visceral leishmaniasis 26 , which triggered the redirection of activities in the area of education in health and interfered with the actions of notification of triatomines by populations 51 . In addition, low prevalence rates of Chagas' disease in some regions and political-administrative issues related to systematic control programs 46 have contributed to the disrupted follow-up of entomological surveys over the years 26,46 .…”

Section: Discussionmentioning

confidence: 98%

“…Findings of the study demonstrate that the main obstacle to be overcome in the Chagas disease vector transmission control is continuous surveillance, assuming that household invasions from the extradomestic environment will always be possible 11 . In this context, community participation in the triatomine detection process is required 47 in order to decentralize of entomological surveillance actions by the field teams 48 , a measure with a significant impact, as demonstrated in some regions 11,13,47,[49][50][51] .…”

Section: Discussionmentioning

confidence: 99%

Indicadores entomológicos de triatomíneos no Estado do Rio Grande do Norte, Brasil

Barreto

Cavalcanti

Andrade

et al. 2019

Ciênc. saúde coletiva

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Resumo Objetivou-se descrever os principais indicadores entomológicos relacionados aos triatomíneos na mesorregião Oeste do Rio Grande do Norte. Trata-se de estudo descritivo, transversal e retrospectivo, desenvolvido com base em análise histórica de informações sobre a captura de triatomíneos realizada pelo Programa de Controle de doença de Chagas, no período de 2008 a 2013. Foram capturadas cinco espécies, das quais se destacaram a Triatoma brasiliensis e a Triatoma pseudomaculata, pela ocupação do ambiente domiciliar e peridomiciliar, sequencialmente, e a Panstrongylus lutzi, pelo maior índice de infecção natural. Observou-se prevalência de ninfas dentre os exemplares capturados, maior densidade triatomínica no peridomicílio, índices de infestação, colonização e infecção natural de 5,6%, 49,6% e 0,8%, respectivamente, diferença significativa na distribuição de espécimes entre os municípios investigados e ausência de declínio dos índices de infestação e colonização entre os anos de 2009 e 2012. Os achados sugerem a necessidade de vigilância contínua, possibilitada pela associação entre as equipes de campo e as comunidades, com ênfase na proposta de educação em saúde para o reconhecimento e notificação dos triatomíneos pela população.

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“…In the Municipality of Diamantina in Minas Gerais, among the total insects captured, 87.9% were found inside the households [43]. The author described that the main places in the house were the bedroom (33.6%) and the living room (32.1%).…”

Section: Discussionmentioning

confidence: 99%

Home invasion of triatomines increases the risk of Chagas disease transmission in the Brazilian Amazon

Mota

Valente

Ramos

et al. 2020

Preprint

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Chagas disease is a parasitic infection with a large reemergent rates in some Amazon regions with usual features of outbreaks of the acute disease mainly by oral transmission. The main vectors of Trypanosoma cruzi are hematophagous insects, the triatomines. Some of them can establish themselves in human dwellings and their annexes but others are mostly wild. In the state of Pará, few records have been made about the occurrence of those wild vectors in fortuitous contact with inhabitants in riverside regions in the Amazon. These vector behaviours have been studied by our group since 2006, trying to explain their role in transmission of the silent disease or asymptomatic infection. The objective of this study is to describe the epidemiological profile of populations exposed to random triatomine home invasion in riverside areas with this registered occurrence. This is a cross-sectional study developed in Abaetetuba city, in the state of Pará, where we conducted a seroepidemiologic survey in inhabitants that registered triatomine home invasion. The results demonstrated that triatomine invasions occur especially in the in-home environment and in the rural zone. The genus Rhodnius was the most found in residences of the municipalities. Direct contact through the vector was reported by 15.55% of the total participants, and an unusual vector behaviour were observed during the day. Despite this small casuistic, 0.47% of the enrolled inhabitants had positive serology IgG anti- T. cruzi antibodies. We confirm one occurrence of asymptomatic infection in a child and, also, favourable links to the Chagas disease transmission chain. Faced with the scarcity of information on triatomine aggression in the Amazon, the authors recommended an entomological study of greater scope in those areas. The record of unusual vector behaviour and the serological surveillance of human populations under this risk may constitute a new tool for the early detection of silent infections and reinforce the knowledges about the behaviour of invading insects. At the same time, health education can assist in strategies for the prevention of Chagas' disease.

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Conhecimentos sobre triatomíneos e sobre a doença de Chagas em localidades com diferentes níveis de infestação vetorial

Cited by 22 publications

References 27 publications

Determinants of intentions to prevent triatomine infestation based on the health belief model: An application in rural southern Ecuador

Determinants of intentions to prevent triatomine infestation based on the health belief model: An application in rural southern Ecuador

Indicadores entomológicos de triatomíneos no Estado do Rio Grande do Norte, Brasil

Home invasion of triatomines increases the risk of Chagas disease transmission in the Brazilian Amazon

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