casos alóctones de leishmaniose visceral canina no paraná, brasil: implicações epidemiológicas allochthonous cases of canine visceral leishmaniasis in paraná, brazil: epidemiological implications

Clicks: 361
ID: 172290
2009
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Abstract
O presente trabalho teve como objetivo pesquisar a ocorrência de leishmaniose visceral em cães com sinais clínicos compatíveis, procedentes de clínicas veterinárias das diferentes regiões do Estado do Paraná e em caso positivo verificar a autoctonia dos mesmos. Dos animais com suspeita clínica e epidemiológica de LV, foi coletada amostra de sangue para realização de hemograma, provas bioquímicas, sorologia, cultura do parasito, PCR e RAPD. Os cães portadores de quadro clínico, como febre, hiperqueratose, onicogrifose e emagrecimento exagerado, tiveram gânglio poplíteo e/ou medula óssea puncionados e o conteúdo inoculado em meio de cultivo NNN. A extração de DNA do parasito em sangue e cultura foi realizada pelo método fenol/clorofórmio. A amplificação de DNA do protozoário foi feita por PCR e RAPD. Dos 24 animais analisados, o parasito foi isolado em 19 cães. As técnicas moleculares permitiram identificar 14 isolados como L. (Leihmania) infantum e cinco como L. (Viannia) braziliensis. A análise epidemiológica dos casos permitiu determinar o local de transmissão e definir que todos os cães com LV diagnosticados eram casos alóctones, ou seja eram importados de regiões endêmicas. Sugere-se que a migração dos cães de regiões endêmicas para regiões indenes poderá permitir a instalação de novos focos, desde que o agente encontre ecótopo adequado e vetor específico (Lutzomyia longipalpis).
The south region is the only area in Brazil that does not present autochthonous cases of visceral leishmaniasis (VL), however, in the state of Parana, dogs and humans have been found showing a VL compatible clinical profile. In view of this problem, the present work aimed at isolating and identifying the parasite and determining the cases autochthony. All animals clinically suspect of VL were clinically evaluated, and had samples of their blood collected for hemoculture (NNN culture medium), serology, PCR and RAPD-PCR, hemogram, and biochemical assays. The dogs presenting VL clinical profile had their lymph nodes and/or bone marrow punctured and their content inoculated in NNN culture medium. The protozoan isolated was identified by PCR and PCR-RAPD. Strains of Leishmania were isolated in 19 out of the 24 studied animals. Fourteen isolates were identified as L. (Leishmania) infantum, and five were L. (Viannia) braziliensis. In the epidemiological analysis, it was possible to determine that all dogs with L. (L.) infantum being allochthonous cases. Leishmaniasis is a zoonose that has the domestic dog as reservoir, the migration ofsuch animals can disseminate the parasite to other regions, provided the agent finds an adequate ecotope and a specific vector (Lutzomyia longipalpis).
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thomaz-soccol2009revistacasos Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Vanete Thomaz-Soccol;Edilene A. Castro;Italmar Teodorico Navarro;Marconi Rodrigues de Farias;Lília Maria de Souza;Yanê Carvalho;Saloé Bispo;Norberto Assis Membrive;João Carlos Minozzo;Jessé Truppel;Wagner Bueno;Ennio Luz
Journal journal of clinical periodontology
Year 2009
DOI
10.4322/rbpv.01803008
URL
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-29612009000300008
Keywords
dogs visceral leishmaniasis leishmania infantum epidemiología epidemiologyanimal culture allochthonous cases

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