Epidemiological aspects of human and canine visceral leishmaniasis in Montes Claros, State of Minas Gerais, Brazil, between 2007 and 2009

Prado, Patrícia Fernandes do; Rocha, Marília Fonseca; Sousa, Joel Fontes de; Caldeira, Dênio Iuri; Paz, Gustavo Fontes; Dias, Edelberto Santos

doi:10.1590/s0037-86822011000500006

Cited by 41 publications

(45 citation statements)

References 22 publications

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“…Prado et al (2011) observed that in Montes Claros, state of Minas Gerais, more men were affected byVL (64%), and this is compatible with an average of 61% found in Brazil. Mestre and Fontes (2007) reported that VL Mato Grosso primarily affected males and children aged less than five years.…”

Section: Discussionsupporting

confidence: 76%

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: Discussionsupporting

confidence: 76%

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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“…According to the VLCP, they must be eliminated (euthanasia) for not only being the main reservoir of the disease, but also because canine infection precedes the occurrence of human cases (Prado et al, 2011). Silva et al (2005) state that this strategy would reduce the cases in humans.…”

Section: Discussionmentioning

confidence: 99%

Epidemiological aspects of human and canine visceral leishmaniasis in State of Alagoas, Northeast, Brazil

Rocha

Ribeiro

et al. 2018

Braz. J. Biol.

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Zoonotic visceral leishmaniasis (ZVL), caused by protozoans of the genus Leishmania, it is a worldwide of great importance disease. In the northeast region of Brazil, the state of Alagoas has an endemic status for ZVL. Thus, this work aimed to analyze the epidemiological situation of human and canine visceral leishmaniasis in Alagoas, Northeast, Brazil, from 2007 to 2013. We conducted a descriptive, observational, retrospective study using secondary data from the Notifiable Diseases Information System, the Center of Zoonosis Control of Maceió, and the Central Laboratory of Public Health of Alagoas. During the studied period, it was observed that the highest incidence of human visceral leishmaniasis was in 2011 and the lowest in 2013. On the other hand, canine visceral leishmaniasis had its highest incidence in 2007 and its lowest in 2012. Of the 55 municipalities in the State of Alagoas that showed human visceral leishmaniasis (HVL), São José da Tapera presented an average of 4.4 cases over the past five years, being classified as of intense transmission. Regarding canine visceral leishmaniasis, in the same studied period, 45,112 dogs were examined in the State, of which 4,466 were positive. It resulted, thus, in a 9.9% positivity rate. Conclusions: Our data are important because canine infection is an important risk factor for the human disease. Keywords

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“…The urbanization of CVL is still a serious public health problem in many parts of Brazil (França-Silva et al, 2003;Morais et al, 2008;Prado et al, 2011;Dias et al, 2011;Barata et al, 2013). In Juatuba, CVL is highly dynamic and widely distributed throughout the municipality (Fig.…”

Section: Discussionmentioning

confidence: 99%

“…Spatial analysis guides the allocation of resources for environmental intervention and other actions involving different sectors (Morais et al, 2008;Prado et al, 2011). The non-static behavior of the disease requires permanent monitoring combined with increasingly detailed statistical, spatial, and temporal analyses.…”

Section: Discussionmentioning

confidence: 99%

Transmission of visceral leishmaniasis in dogs in a risk area of the metropolitan region of Belo Horizonte, Minas Gerais, Brazil

Lopes

Pastrana

Borges

et al. 2016

Arq. Bras. Med. Vet. Zootec.

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Visceral leishmaniasis (VL) has spread rapidly across cities in the metropolitan region of Belo Horizonte. The aim of this study was to investigate VL dynamics in a prospective cohort study of dogs in Juatuba, between 2010 and 2011, to confirm the incidence of Leishmania infantum, and to assess possible risk factors associated with infection. An observational and prospective closed cohort study was performed using serology testing in dogs, randomly selected from the whole municipality. All seronegative dogs, or dogs with inconclusive results were monitored using indirect immunofluorescence (IIF) at 6-month intervals. The dog's owners completed a semi-structured questionnaire to assess possible causal factors of seroconversion, and the responses were assessed using logistic regression. The canine incidence coefficient was 206/1,000 dogs per year (CI: 178-238), and a cluster was identified in an area with a high concentration of seropositive dogs, but a low overall canine population. Large dogs were identified as a risk factor and the following variables were identified as protection factors: dogs aged over 4 years, daily peridomicile cleaning, and better socioeconomic conditions. VL is spreading over a large area in Juatuba in a short period of time. Key words: leishmaniasis, incidence, seroconversion, risk factors, cluster RESUMO A leishmaniose visceral (LV) expandiu-se de forma rápida e extensa pelos municípios da Região Metropolitana de Belo Horizonte. Objetivou-se estudar a dinâmica da LV em uma coorte prospectiva de cães em Juatuba, entre 2010 e 2011, para verificar a incidência e fatores de risco associados à infecção por Leishmania infantum. Foi feito um estudo observacional e prospectivo de coorte fechada por meio de análise sorológica em cães selecionados aleatoriamente em todo o município, com acompanhamento semestral dos resultados soronegativos e indeterminados na imunofluorescência indireta (IFI

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Epidemiological aspects of human and canine visceral leishmaniasis in Montes Claros, State of Minas Gerais, Brazil, between 2007 and 2009

Cited by 41 publications

References 22 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

Epidemiological aspects of human and canine visceral leishmaniasis in State of Alagoas, Northeast, Brazil

Transmission of visceral leishmaniasis in dogs in a risk area of the metropolitan region of Belo Horizonte, Minas Gerais, Brazil

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