Entomological aspects of Chagas' disease transmission in the domestic habitat, Argentina

OBJECTIVE: To study the risk of Trypanosoma cruzi domestic transmission using an entomological index and to explore its relationship with household's characteristics and cultural aspects. METHODS: There were studied 158 households in an endemic area in Argentina. Each household was classified accord... Ausführliche Beschreibung

1. Person: Catalá SS verfasserin
Weitere Personen: Crocco LB verfasserin; Muñoz A verfasserin; Morales G verfasserin; Paulone I verfasserin; Giraldez E verfasserin; Candioti C verfasserin; Ripol C verfasserin
Quelle: In Revista de Saúde Pública (01.01.2004)
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Format: Online-Artikel
Sprache: English
Spanish
Portuguese
Veröffentlicht: 2004
Beschreibung: Online-Ressource
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  Creative Commons License Source: Directory of Open Access Journals (DOAJ).
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520 |a OBJECTIVE: To study the risk of Trypanosoma cruzi domestic transmission using an entomological index and to explore its relationship with household's characteristics and cultural aspects. METHODS: There were studied 158 households in an endemic area in Argentina. Each household was classified according to an entomological risk indicator (number of risky bites/human). A questionnaire was administered to evaluate risk factors among householders. RESULTS: Infested households showed a wide range of risk values (0 to 5 risky bites/human) with skewed distribution, a high frequency of lower values and few very high risk households. Of all collected Triatoma infestans, 44% had had human blood meals whereas 27% had had dogs or chickens blood meals. Having dogs and birds sharing room with humans increased the risk values. Tidy clean households had contributed significantly to lower risk values as a result of low vector density. The infested households showed a 24.3% correlation between time after insecticide application and the number of vectors. But there was no correlation between the time after insecticide application and T. infestans' infectivity. The statistical analysis showed a high correlation between current values of the entomological risk indicator and Trypanosoma cruzi seroprevalence in children. CONCLUSIONS: The risk of T. cruzi domestic transmission assessed using an entomological index show a correlation with children seroprevalence for Chagas' disease and householders' habits. 
700 0 |a Crocco LB  |e verfasserin  |4 aut 
700 0 |a Muñoz A  |e verfasserin  |4 aut 
700 0 |a Morales G  |e verfasserin  |4 aut 
700 0 |a Paulone I  |e verfasserin  |4 aut 
700 0 |a Giraldez E  |e verfasserin  |4 aut 
700 0 |a Candioti C  |e verfasserin  |4 aut 
700 0 |a Ripol C  |e verfasserin  |4 aut 
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