Triatoma infestans: importância, controle e eliminação da espécie no Estado de São Paulo, Brasil

Silva, Eduardo Olavo da Rocha e; Wanderley, Dalva Marli Valério; Rodrigues, Vera

doi:10.1590/s0037-86821998000100010

Cited by 20 publications

(4 citation statements)

References 15 publications

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“…Outros fatores, além do uso de inseticidas, também colaboraram para que os resultados fossem favoráveis ao controle da endemia, como o êxodo rural ocorrido a partir da década de 50, devido à avalanche do modelo urbano-industrial, à onda da globalização e à economia de mercado, que inviabilizaram o arcaico sistema de produção rural, privilegiando agroindústrias, modernização, redução de mão-de-obra etc. 22 . Embora priorizado em 1983, o PCDCh teve suas atividades perturbadas, a partir de 1986, em virtude das repetidas epidemias de dengue no país e da perda de pessoal que foi remanejado para o controle dessa virose 23 .…”

Section: Introductionunclassified

Vigilância entomológica da doença de Chagas na região centro-oeste de Minas Gerais, Brasil, entre os anos de 2000 e 2003

et al. 2005

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In Minas Gerais State, Brazil, after the elimination of Triatoma infestans by the Brazilian Chagas Disease Control Program, some triatomine species, such as Panstrongylus megistus, have merited the attention of entomological surveillance authorities. After the decentralization of the Brazilian health system, certain administrative and operational difficulties have been observed in some municipalities (counties). This study aims to evaluate entomological surveillance for Chagas disease in the 54 municipalities supervised by the Division of Decentralized Health Activities in Divinopolis, Minas Gerais, from 2000 to 2003. In 46 municipalities, 1,531 triatomines were captured, of which 94.1% were P. megistus. The infection rate for T. cruzi in the vectors was 1.3%. A total of 850 reports were received and 835 site visits were conducted, showing that the program is active and efficient in the majority of the municipalities analyzed. The importance of the maintenance and improvement of entomological surveillance in the region was demonstrated, since triatomine bugs continue to invade (and can colonize) the domiciliary environment, although with low density.

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Section: Introductionunclassified

Vigilância entomológica da doença de Chagas na região centro-oeste de Minas Gerais, Brasil, entre os anos de 2000 e 2003

et al. 2005

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“…When this study was done, in Brazil, the principal method to reduce triatomine populations infesting human dwellings was with chemical insecticides of prolonged residual action, such as hexachlorocyclohexane (BHC; Coura, 1993; Lima et al, 1991; Marsden, 1984; Silva et al, 1998). According to Marsden (1984), when organochlorines were banned in many developed countries, Brazil imported supplies from South Africa and used 474,000 tons of BHC in 1979.…”

Section: Introductionmentioning

confidence: 99%

Laboratory and field studies for the control of Chagas disease vectors using the fungus Metarhizium anisopliae

Rangel

Piedrabuena

Roitman

et al. 2020

Arch Insect Biochem Physiol

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Chagas disease is one of the most important insectvectored diseases in Brazil. The entomopathogenic fungus Metarhizium anisopliae was evaluated against nymphs and adults of Panstrongylus megistus, Triatoma infestans, and T. sordida. Pathogenicity tests at saturated humidity demonstrated high susceptibility to fungal infection. The shortest estimates of 50% lethal time (LT 50) for P. megistus varied from 4.6 (isolate E9) to 4.8 days (genetically modified strain 157p). For T. infestans, the shortest LT 50 was 6.3 (E9) and 7.3 days (157p). For T. sordida, the shortest LT 50 was 8.0 days (157p). The lethal concentration sufficient to kill 50% of T. infestans (LC 50) was 1.9 × 10 7 conidia/ml for strain 157p. In three chicken coops that were sprayed with M. anisopliae, nymphs especially were well controlled, with a great population reduction of 38.5% after 17 days. Therefore M. anisopliae performed well, controlling Triatominae in both laboratory and field studies.

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“…In Brazil, rural exodus in the 1970s and '80s reduced the use of manual labor in rural areas, thereby increasing the number of inhabited houses, which provide ideal shelter for Triatoma infestans Klug, 1834 2 .…”

Section: Introductionmentioning

confidence: 99%

Triatomine infestation and vector-borne transmission of Chagas disease in northwest and central Paraná, Brazil

et al. 2004

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Triatoma infestans: importância, controle e eliminação da espécie no Estado de São Paulo, Brasil

Abstract: Resumo Os autores tecem considerações a respeito do controle dos transmissores da doença de

Cited by 20 publications

References 15 publications

Vigilância entomológica da doença de Chagas na região centro-oeste de Minas Gerais, Brasil, entre os anos de 2000 e 2003

Vigilância entomológica da doença de Chagas na região centro-oeste de Minas Gerais, Brasil, entre os anos de 2000 e 2003

Laboratory and field studies for the control of Chagas disease vectors using the fungus Metarhizium anisopliae

Triatomine infestation and vector-borne transmission of Chagas disease in northwest and central Paraná, Brazil

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