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Participation o ticks in the infectious cycle f canine visceral leishmaniasiss, in teresina, piauí,BBrazil / Participação do Rhipicephalus sanguineus no ciclo infeccioso da leishmaniose visceral canina em Teresina, Piauí, Brasil
Campos, José Henrique Furtado; Costa, Francisco Assis Lima.
  • Campos, José Henrique Furtado; Universidade Federal do Piauí (UFPI).
  • Costa, Francisco Assis Lima; Universidade Federal do Piauí (UFPI).
Rev. Inst. Med. Trop. Säo Paulo ; 56(4): 297-300, Jul-Aug/2014. tab
Article in English | LILACS | ID: lil-716413
ABSTRACT
In this study, we detected Leishmania spp. infection in R. sanguineus collected from dogs that were naturally infected with L. (L.) infantum. We examined 35 dogs of both sexes and unknown ages. The infected dogs were serologically positive by the immunofluorescence antibody test (IFAT), enzyme-linked immunosorbent assay (ELISA), and Quick Test-DPP (Dual Path Platform), as well as parasitological examination of a positive skin biopsy or sternal bone marrow aspiration. Ten negative dogs were included as controls. The ticks that infested these dogs were collected in pools of 10 adult females per animal. The PCR was performed with specific primers for Leishmania spp., which amplified a 720-bp fragment. Of the 35 analyzed samples, a product was observed in eight samples (8/35; 22.9%). We conclude that the presence of parasite DNA suggests that ticks participate in the zoonotic cycle of canine visceral leishmaniasis, in the city of Teresina, Piauí.
RESUMO
Neste estudo foi detectada infecção por Leishmania spp. em Rhipicephalus sanguineus (R. sanguineus) de cães naturalmente infectados por Leishmania (Leishmania) infantum = L. (L.) infantum. Foram utilizados 35 cães de ambos os sexos e idades desconhecidas, sorologicamente positivos pelas técnicas de reação de imunofluorescência indireta (RIFI), enzyme-linked immunosorbent assay (ELISA) e Quick Test-DPP (Dual Path Plataform), e com exame parasitológico positivo em biópsia de pele ou punção de medula óssea esternal e 10 cães domiciliados negativos, como controle. Os carrapatos que infestavam esses cães foram coletados em pool de 10 fêmeas adultas por animal. A Reação em Cadeia pela Polimerase (PCR = Polymerase Chain Reaction) foi realizada com primers para Leishmania spp., que amplificaram 720pb. O resultado das 35 amostras processadas revelou a amplificação de oito amostras (8/35 - 22,9%). Conclui-se que a presença do DNA do parasita sugere que carrapatos podem estar participando do ciclo zoonótico da leishmaniose visceral canina na cidade de Teresina, Piauí.
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Full text: Available Index: LILACS (Americas) Main subject: Tick Infestations / Dog Diseases / Leishmaniasis, Visceral Type of study: Diagnostic study Limits: Animals Country/Region as subject: South America / Brazil Language: English Journal: Rev. Inst. Med. Trop. Säo Paulo Journal subject: Tropical Medicine Year: 2014 Type: Article Affiliation country: Brazil

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Full text: Available Index: LILACS (Americas) Main subject: Tick Infestations / Dog Diseases / Leishmaniasis, Visceral Type of study: Diagnostic study Limits: Animals Country/Region as subject: South America / Brazil Language: English Journal: Rev. Inst. Med. Trop. Säo Paulo Journal subject: Tropical Medicine Year: 2014 Type: Article Affiliation country: Brazil