Lutzomyia longipalpis (Diptera: Psychodidae: Phlebotominae) in the region of Saquarema: potential area of visceral leishmaniasis transmission in the state of Rio de Janeiro, Brazil

Brazil, Reginaldo Peçanha; Pontes, Michelle Cristina de Queiroz; Passos, Wagner Lança; Fuzari, Andressa Alencaste; Brazil, Beatriz Gomes

doi:10.1590/s0037-86822012000100023

Cited by 8 publications

(7 citation statements)

References 12 publications

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“…The presence of the vector L. longipalpis in the state of Rio de Janeiro has been documented in the southern part of the country, on Marambaia Island, in the municipality of the cities of Mangaratiba and Saquarema 3,9 . Cases of the autochthonous transmission of canine visceral leishmaniasis were reported in the southern part of the city of Rio de Janeiro, in the Laranjeiras neighborhood, and in the city of Angra dos Reis 5,10 .…”

Section: Discussionmentioning

confidence: 99%

First Case of Autochthonous Human Visceral Leishmaniasis in the Urban Center of Rio De Janeiro: Case Report

Silva

Boechat

Ferry

et al. 2014

Rev. Inst. Med. trop. S. Paulo

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Visceral leishmaniasis is an anthropozoonosis that is caused by protozoa of the genus Leishmania, especially Leishmania (Leishmania) infantum, and is transmitted to humans by the bite of sandflies of the genus Lutzomyia, such as Lutzomyia longipalpis. There are many reservoirs, including Canis familiaris. It is a chronic infectious disease with systemic involvement that is characterized by three phases: the initial period, the state period and the final period. The main symptoms are fever, malnutrition, hepatosplenomegaly, and pancytopenia. This article reports a case of a patient diagnosed with visceral leishmaniasis in the final period following autochthonous transmission in the urban area of Rio de Janeiro. The case reported here is considered by the Municipal Civil Defense and Health Surveillance of Rio de Janeiro to be the first instance of autochthonous visceral leishmaniasis in humans in the urban area of this city. The patient was discharged and is undergoing a follow-up at the outpatient clinic, demonstrating clinical improvement.

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Section: Discussionmentioning

confidence: 99%

First Case of Autochthonous Human Visceral Leishmaniasis in the Urban Center of Rio De Janeiro: Case Report

Silva

Boechat

Ferry

et al. 2014

Rev. Inst. Med. trop. S. Paulo

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“…The urban emergence is reported as: (i) "first" AVL autochthonous urban or atypical cases ( Duarte et al 1994 , Noyes et al 1997 , Carrillo et al 1999 , de Lima et al 2009 , de Campos et al 2013 , Silva et al 2014a, Von Zuben et al 2014 ), (ii) urban outbreaks ( Aguilar et al 1998 , Delgado et al 1998 , Feliciangeli et al 1999 , Bevilacqua et al 2001 , Zerpa et al 2002 , Flórez et al 2006 , de Oliveria et al 2006, Mestre & Fontes 2007 , Salomón et al 2008 , Barata et al 2013) , (iii) the finding of Lu. longipalpis in urban environments or areas without previous records ( Paula et al 2008 , Souza & Borges 2008 , Andrade Filho & Brazil 2009, Souza et al 2009 , Salomón et al 2011a, b, Valderrama et al 2011 , Brazil et al 2012 , Santos et al 2012 , Acosta et al 2013 , Bravo et al 2013) and (iv) predicted changes of distribution or altitudinal shifts ( González et al 2014) . On the other hand, the literature recorded the spread of the vector and infected reservoirs/hosts by L. infantum in urban environments from the Northwest to the Southeast of Brazil ( Maia-Elkhoury et al.…”

Section: The Urbanisation-dispersion Of Lu Longipalpismentioning

confidence: 97%

Lutzomyia longipalpis urbanisation and control

Salomón

Feliciangeli

Quintana

et al. 2015

Mem. Inst. Oswaldo Cruz

108

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Since the description of Lutzomyia longipalpis by Lutz and Neiva more than 100 years ago, much has been written in the scientific literature about this phlebotomine species. Soares and Turco (2003) and Lainson and Rangel (2005) have written extensive reviews focused on vector-host-parasite interactions and American visceral leishmaniasis ecology. However, during the last two decades, the success of Lu. longipalpis in colonising urban environments and its simultaneous geographical spreading have led to new theoretical and operational questions. Therefore, this review updates the general information about this species and notes the more challenging topics regarding the new scenario of urbanisation-spreading and its control in America. Here, we summarise the literature on these issues and the remaining unsolved questions, which pose recommendations for operational research.

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“…Visceral leishmaniasis (VL) is a widespread zoonosis in Brazil that is highly lethal among untreated individuals, malnourished children, and those who are immunodeficient (Rabello et al 2003). Over the last three decades, the epidemiology of VL has changed drastically in many regions of Brazil, from a typical rural disease to an urban problem (Brazil et al 2012). The causative agent of VL, Leishmania infantum (Leishmania chagasi), is transmitted between dogs and humans by blood-feeding female sand flies.…”

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confidence: 99%

Genetic Structure of Lutzomyia longipalpis Populations in Mato Grosso Do Sul, Brazil, Based on Microsatellite Markers

et al. 2013

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Background Lutzomyia longipalpis (Diptera: Psychodidae) is the major vector of Leishmania (Leishmania) infantum and thus plays a crucial role in the epidemiology of American visceral leishmaniasis (AVL). This vector is the best studied species of sand fly in the Neotropical region. Many studies claim that this vector is in fact a species complex; however there is still no consensus regarding the number of species that belong into this complex or the geographical distribution of sibling species. The aim of the present study was to analyze the genetic relationships within Lu. longipalpis populations in the state of Mato Grosso do Sul (MS), Brazil.Methodology/Principal FindingsWe collected 30 Lu. longipalpis (15 females and 15 males) from five localities (Campo Grande, Três Lagoas, Aquidauana, Miranda and Bonito) and 30 Lu. Cruzi from Corumbá, totaling 180 sandflies from MS, and 30 Lu. longipalpis from Estrela de Alagoas, state of Alagoas (AL), Northeast Brazil. We show that eight previously described microsatellite loci were sufficient in distinguishing Lu. longipalpis from Lu. Cruzi, which is a closely related species, and in differentiating between Lu. longipalpis collected in MS versus Estrela de Alagoas. Analyses of the genotypes revealed introgression between sympatric Lu. longipalpis and Lu. Cruzi. Conclusions/SignificanceOur findings support the hypothesis of cryptic species within the Lu. longipalpis complex. Furthermore, our data revealed introgression between Lu. longipalpis and Lu. cruzi. This phenomenon should be further investigated to determine the level and incidence of hybridization between these two species. We also demonstrated that microsatellite markers are a powerful tool for differentiating sand fly populations and species. The present study has elucidated the population structure of Lu. longipalpis in MS and, by extension, the Neotropical Lu. longipalpis complex itself.

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Lutzomyia longipalpis (Diptera: Psychodidae: Phlebotominae) in the region of Saquarema: potential area of visceral leishmaniasis transmission in the state of Rio de Janeiro, Brazil

Abstract: Revista da Sociedade Brasileira de Medicina

Cited by 8 publications

References 12 publications

First Case of Autochthonous Human Visceral Leishmaniasis in the Urban Center of Rio De Janeiro: Case Report

First Case of Autochthonous Human Visceral Leishmaniasis in the Urban Center of Rio De Janeiro: Case Report

Lutzomyia longipalpis urbanisation and control

Genetic Structure of Lutzomyia longipalpis Populations in Mato Grosso Do Sul, Brazil, Based on Microsatellite Markers

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