Dengue in Brazil - situation, transmission and control: a proposal for ecological control

Marzochi, Keyla Belízia Feldman

doi:10.1590/s0074-02761994000200023

Cited by 34 publications

(30 citation statements)

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“…This pattern may be related to the different socioeconomic levels of the population, as shown by Costa & Natal. 5 According to Marzochi,7 large numbers of inhabitants of urban areas are associated with poverty zones without infrastructure and lacking in public services. This may provide conditions that are favorable for disease proliferation.…”

Section: Discussionmentioning

confidence: 99%

Análise espacial da transmissão de dengue em cidade de porte médio do interior paulista

Mondini

Neto

Sanches³

et al. 2005

Rev. Saúde Pública

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Section: Discussionmentioning

confidence: 99%

Análise espacial da transmissão de dengue em cidade de porte médio do interior paulista

Mondini

Neto

Sanches³

et al. 2005

Rev. Saúde Pública

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“…Esse fato decorre de fatores relacionados à biologia e ao comportamento do vetor, somados a problemas típicos dos centros urbanos (Gadelha & Toda 1985, Ishak 1987, Marzochi 1994, Monath 1994.…”

Section: Palavras-chave: Dengue Extrato De Planta Controle Mosquitounclassified

Atividade larvicida de óleos essenciais contra Aedes aegypti L. (Diptera: Culicidae)

Furtado¹,

Lima²,

Neto³

et al. 2005

Neotrop. Entomol.

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-In the search for alternative chemical control against Aedes aegypti L., many researches are developed and encouraged in order to find new insecticidal plant substances. In this work, the larvicidal effect of ten essential oils was tested on A. aegypti. The oils were extracted by steam distillation and their chemical composition determined by GL-chromatography coupled with mass spectroscopy. The essential oils were diluted in aqueous solutions of dimethyl sulfoxide with concentrations of: 100, 50, 10, and 1 mg/ml. The larvicidal activity, based on the percentage of larval mortality, was evaluated after 24h exposure to the treatments. The essential oil of Vanillosmopsis arborea Baker presented the highest larvicidal activity, with CL 50 of 15.9 mg/ml and CL 90 of 28.5 mg/ml. On the other hand the essential oil of O. gratissimum L. showed the lower activity with CL 50 de 95,80 mg/ml and CL 90 de 102,86 mg/ml. The results indicate that the tested essential oils, and particularly the V. arborea, are composed by substances with larvicidal properties for A. aegypti.KEY WORDS: Dengue, plant extract, control, mosquito RESUMO -Na busca por controle químico alternativo contra Aedes aegypti L., muitas pesquisas são desenvolvidas e estimuladas no intuito de se descobrirem novas substâncias inseticidas de origem vegetal. Neste trabalho, o efeito larvicida de dez óleos essenciais foi avaliado contra A. aegypti. Os óleos foram obtidos por arraste a vapor e sua composição química foi determinada por cromatografia gasosa acoplada a espectrometria de massa. Os óleos essenciais foram diluídos em solução aquosa de dimetil sufóxido nas concentrações: 100, 50, 10 e 1 mg/ml. A atividade larvicida, baseada na percentagem de larvas mortas, foi avaliada 24h após o tratamento. O óleo essencial de Vanillosmopsis arborea Baker induziu a maior atividade larvicida, com CL 50 de 15,9 mg/ml e CL 90 de 28,5 mg/ml., enquanto o de O. gratissimum L. apresentou a menor atividade com CL 50 de 95,80 mg/ml e CL 90 de 102,86 mg/ml. Os resultados indicam que os óleos essenciais avaliados, principalmente o de V. arborea, são compostos por substâncias com efeito larvicida contra A. aegypti.

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“…The first epidemic was registered in Roraima, a state in the Amazon, in 1981 and 1982. Rio de Janeiro, which has the second largest Brazilian urban area, suffered its first outbreak in 1986 [1]. A patient infected by a second serotype may present dengue hemorrhagic fever , which can be lethal.…”

mentioning

confidence: 99%

Case report: spontaneous rupture of the spleen due to dengue fever

Miranda

Miranda²,

Rolland³

2003

Braz J Infect Dis

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Dengue in Brazil - situation, transmission and control: a proposal for ecological control

Cited by 34 publications

References 0 publications

Análise espacial da transmissão de dengue em cidade de porte médio do interior paulista

Análise espacial da transmissão de dengue em cidade de porte médio do interior paulista

Atividade larvicida de óleos essenciais contra Aedes aegypti L. (Diptera: Culicidae)

Case report: spontaneous rupture of the spleen due to dengue fever

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