Species diversity of sandflies (Diptera: Psychodidae) during different seasons and in different environments in the district of Taquaruçú, state of Tocantins, Brazil

Machado, Tâmara Oliveira; Bragança, Marcos A. L.; Carvalho, M. L.; Filho, José Dilermando Andrade

doi:10.1590/s0074-02762012000700021

Cited by 17 publications

(21 citation statements)

References 31 publications

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“…Unlike these regions, faunal studies on these insects in Tocantins showed high species richness, with 48 species described in the municipality of Porto Nacional between 2004 and 2007, and revealing predominance of L. longipalpis, L. whitmani and L. sordellii (VILELA et al, 2011). In the Taquaruçu district, six months of research resulted in 767 sandfly specimens from 32 different species (MACHADO et al, 2012).…”

Section: Discussionmentioning

confidence: 99%

Epidemiological aspects of visceral leishmaniasis in Jaciara, Mato Grosso, Brazil, 2003 to 2012

Brito¹,

Oliveira

Lazari

et al. 2014

Rev. Bras. Parasitol. Vet.

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Visceral leishmaniasis (VL) is caused by Leishmania (L.) infantum chagasi in the Americas. In Brazil, it is transmitted by sandflies of the species Lutzomyia longipalpis and L. cruzi, and dogs are the main domestic reservoirs. The aim of this study was to analyze data relating to VL transmission in Jaciara, state of Mato Grosso, and discuss vector distribution, domestic reservoirs, and human cases that occurred between 2003 and 2012. The data for analysis were obtained from the Notifiable Diseases Information System (human), the State Health Department's Environmental Monitoring Agency (canine data) and the State Health Department's Entomology Laboratory (sandfly data). Over this period, Jaciara had 19 autochthonous human cases (12 males and seven females), with one death 2,273. Out of the 7,545 dogs tested by enzyme immunoassay and indirect immunofluorescence were positive. The sandflies collected comprised 5,015 individuals belonging to 24 species, with a predominance of L. whitmani followed by L. cruzi. The results showed that the parasite has frequent circulation and that the vector L. cruzi is widely distributed over all months, thus suggesting that transmission may occur at any time of the year.Keywords: Visceral leishmaniasis (VL), Lutzomyia cruzi, Lutzomyia whitmani, Canine Reservoir. ResumoA leishmaniose visceral (LV), causada nas Américas pelo protozoário Leishmania (L.) infantum chagasi, transmitida no Brasil por flebotomíneos das espécies Lutzomyia longipalpis e L. cruzi, tem os cães como principais reservatórios domésticos. O objetivo deste trabalho foi analisar os dados relacionados à transmissão da LV, em Jaciara (MT), e discutir a respeito da distribuição do vetor, reservatório doméstico e os casos humanos ocorridos no período de 2003 a 2012. Os dados para análise foram obtidos do Sistema de Informações de Agravos de Notificação (humanos), da Vigilância Ambiental da Secretaria Estadual de Saúde (caninos) e do Laboratório de Entomologia da Secretaria Estadual de Saúde (flebotomíneos). Jaciara apresentou 19 casos autóctones, 12 do sexo masculino e sete do sexo feminino, com um óbito. Dos 7.545 cães testados por imunoensaio enzimático e reação de imunofluorescência indireta, 2.273 foram reagentes. Os flebotomíneos coletados totalizaram 5.015 indivíduos pertencentes a 24 espécies com predomínio de L. whitmani seguido por L. cruzi. Os resultados demonstraram circulação frequente do parasito e a ampla distribuição do vetor L. cruzi com frequência em todos os meses, sugerindo que a transmissão possa ocorrer em qualquer época do ano.Palavras-chave: Leishmaniose Visceral (LV), Lutzomyia cruzi, Lutzomyia whitmani, Reservatório Canino.

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Section: Discussionmentioning

confidence: 99%

Epidemiological aspects of visceral leishmaniasis in Jaciara, Mato Grosso, Brazil, 2003 to 2012

Brito¹,

Oliveira

Lazari

et al. 2014

Rev. Bras. Parasitol. Vet.

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“…From the scarce bibliographic records that were found (9), the vector was recorded in only 22 municipalities of Tocantins [29][30][31][32][33][34][35][36][37]. In contrast, there are records of human cases in 124 municipalities, which demonstrate the lack of entomological studies in the state ( Figure 5).…”

Section: American Visceral Leishmaniasis and Lutzomyia (Lutzomyia) Lomentioning

confidence: 99%

Ecoepidemiology of American Visceral Leishmaniasis in Tocantins State, Brazil: Factors Associated with the Occurrence and Spreading of the Vector Lutzomyia (Lutzomyia) longipalpis (Lutz & Neiva, 1912) (Diptera: Psychodidae: Phlebotominae)

Afonso¹,

MirandaChaves²,

Magalhães³

et al. 2017

The Epidemiology and Ecology of Leishmaniasis

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Leishmaniases are considered serious public health problems, and their geographical expansion has enabled their establishment in urban areas of medium and large cities in Brazil. Continuous processes of deforestation, construction of dams, and hydroelectric plants, among others, cause environmental impact and may favor the increase in the number of human cases of leishmaniases, as well as the establishment of epidemic outbreaks. This scenario reflects the reality of some regions of Brazil, such as Tocantins State, which in recent years has recorded high levels of American visceral leishmaniasis (AVL). This study is aimed to analyze environmental and epidemiological factors related with the spatial and temporal distribution of AVL and with the occurrence of Lutzomyia (Lutzomyia) longipalpis, the main vector of AVL, in the state of Tocantins. The results indicate that the vector is adapted to all environments, especially the ones under human influence, and that anthropogenic environmental impacts can support the development and adaptation of AVL in Brazil. Such information could be applied in control strategies aimed at decreasing AVL incidence.

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“…O esforço de captura de flebotomíneos do presente estudo foi maior quando comparado a outros trabalhos em matas de galeria no Brasil central MAChAdo et al 2012;thies et al 2013). Entretanto, uma menor diversidade de flebotomíneos foi observada nas matas de galeria da FAL.…”

Section: As Espécies Identificadas Foramunclassified

Ocorrência de flebotomíneos (Diptera: Psychodidae) em matas de galeria no Distrito Federal, Brasil

et al. 2014

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Resumo. O objetivo deste estudo foi analisar a ocorrência de flebotomíneos em matas de galeria do Distrito Federal (DF), em diferentes estações climáticas, estratos verticais e condições de preservação das matas. As capturas foram realizadas em três áreas na Fazenda Água Limpa da Universidade de Brasília. Em cada área foi analisada a ocorrência de flebotomíneos em 20 pontos visitados em dois meses, novembro de 2012 (estação chuvosa) e maio de 2013 (estação seca). Armadilhas luminosas HP foram instaladas a 1,5 m e a 10 m de altura do solo, operando entre 17:00 e 07:00 h, por três dias consecutivos.

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Species diversity of sandflies (Diptera: Psychodidae) during different seasons and in different environments in the district of Taquaruçú, state of Tocantins, Brazil

Cited by 17 publications

References 31 publications

Epidemiological aspects of visceral leishmaniasis in Jaciara, Mato Grosso, Brazil, 2003 to 2012

Epidemiological aspects of visceral leishmaniasis in Jaciara, Mato Grosso, Brazil, 2003 to 2012

Ecoepidemiology of American Visceral Leishmaniasis in Tocantins State, Brazil: Factors Associated with the Occurrence and Spreading of the Vector Lutzomyia (Lutzomyia) longipalpis (Lutz & Neiva, 1912) (Diptera: Psychodidae: Phlebotominae)

Ocorrência de flebotomíneos (Diptera: Psychodidae) em matas de galeria no Distrito Federal, Brasil

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