The distribution pattern of Lutzomyia longipalpis (Diptera: Psychodidae) in the peridomiciles of a sector with canine and human visceral leishmaniasis transmission in the municipality of Dracena, São Paulo, Brazil

Rangel, Osias; Sampaio, Susy Mary Perpétuo; Ciaravolo, Ricardo Mário de Carvalho; Holcman, Márcia Moreira

doi:10.1590/s0074-02762012000200003

Cited by 14 publications

(13 citation statements)

References 14 publications

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“…) longipalpis being present in municipalities where there are autochthonous records of human cases of AVL in Tocantins, the vector occurs in all classes of land use, being adapted to all environments including disturbed areas, corroborating studies that discuss its adaptation to changing environments [9,34,40,47,48]. A positive correlation was observed between the presence of L. (L.) longipalpis and areas of secondary vegetation [49] and ombrophilous forest in Tocantins, indicating that the vector is adapted to different environments, especially in areas recovering from human interventions or from natural causes.…”

Section: Considering the Assumption Of L (Lsupporting

confidence: 58%

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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Section: Considering the Assumption Of L (Lsupporting

confidence: 58%

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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“…Early summer was the period with the highest species diversity, and the remaining species were < 2% of the total phlebotomine capture, maybe as a consequence of the kind of environments sampled, which were more favorable for urban/peri‐urban species (Rangel et al ., ). Among these species we found Mg. migonei , Mi.…”

Section: Discussionmentioning

confidence: 97%

Co‐occurrence and seasonal and environmental distributions of the sandflies Lutzomyia longipalpis and Nyssomyia whitmani in the city of Puerto Iguazú, northeastern Argentina

Santini

Fernández

Cavia

et al. 2017

Medical Vet Entomology

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The aim of this work was to study the distribution of Phlebotominae (Diptera: Psycodidade) abundance in time and space in an area in northeastern Argentina with vector transmission of visceral and tegumentary leishmaniasis. For this, 51 households were selected using a 'worst scenario' criterion where one light trap was set during two consecutive nights in peridomiciles in the transitions between the four seasons, and the environment was surveyed simultaneously. The relationships of phlebotomine assemblage structure and the most abundant species with seasonality and environmental variables were evaluated using a canonical correspondence analysis and generalized linear mixed models, respectively. A total of 5110 individuals were captured. Lutzomyia longipalpis (Lutz & Neiva, 1912) and Nyssomyia whitmani (Antunes & Coutinho, 1939) were the most abundant species captured in all samplings (98.3% of the total capture). The period of highest abundance of Lu. longipalpis was early autumn, and it was distributed in the most urbanized areas. Nyssomyia whitmani occupied mainly the less urbanized areas, showing peaks of abundance in early spring and summer. Other species were captured in low numbers and showed seasonal-spatial variations similar to those of Ny. whitmani. We confirmed Leishmania spp. vector persistence throughout the year in spatial patches of high abundance even during the less favorable season.

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“…In Dracena in the state of São Paulo, over a one-year period, Rangel et al (2012) collected 5,889 sandflies that were distributed between only two species, and 99.8% were identified as Lutzomyia longipalpis. Costa et al (2013) captured 24,226 sand flies in monthly collections over a one-year period in Passira, a municipality in Pernambuco.…”

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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The distribution pattern of Lutzomyia longipalpis (Diptera: Psychodidae) in the peridomiciles of a sector with canine and human visceral leishmaniasis transmission in the municipality of Dracena, São Paulo, Brazil

Abstract: The specimen distribution pattern of a species can be used to characterise a population of interest and also provides area-specific guidance for pest management and control.

Cited by 14 publications

References 14 publications

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)

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)

Co‐occurrence and seasonal and environmental distributions of the sandflies Lutzomyia longipalpis and Nyssomyia whitmani in the city of Puerto Iguazú, northeastern Argentina

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

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