Acquisition and transmission of Hepatozoon canis (Apicomplexa: Hepatozoidae) by the tick Amblyomma ovale (Acari: Ixodidae)

Autor(es)

Rubini, A. S. ^[1] ; Paduan, K. S. ^[1] ; Martins, T. F. ^[2] ; Labruna, M. B. ^[2] ; O'Dwyer, L. H. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Estadual Paulista, Inst Biociencias, Dept Parasitol, BR-18618000 Sao Paulo - Brazil

^[2] Univ Sao Paulo, Fac Med Vet & Zootecnia, Dept Med Vet Prevent & Saude Anim, BR-05508 Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Veterinary Parasitology; v. 164, n. 2-4, p. 324-327, OCT 14 2009.
• Citações Web of Science: 43

Resumo

The present study aimed to evaluate under controlled conditions the acquisition of Hepatozoon canis by Amblyomma ovale after feeding on infected dogs, and the subsequent induction of infection in uninfected dogs that ingested the experimentally infected ticks. Two H. canis naturally infected dogs were infested with A. ovate adult ticks derived from an uninfected laboratory tick colony. After feeding, two A. ovale females presented H. canis oocysts in the hemolymph at the first and fourth days after removal of ticks from dogs. The oocysts had an average size of 244.34 mu m x 255.46 mu m. Three uninfected dogs were fed with ticks previously fed on the infected dogs. Only one dog became infected 32 days after oral inoculation, presenting circulating gametocytes, parasitemia less than 1%, and positive PCR confirmed to be H. canis by DNA sequencing. The results obtained indicated A ovale ticks as potential vector of H. canis in rural areas of Brazil. (C) 2009 Elsevier B.V. All rights reserved. (AU)

• Processo FAPESP: 06/53415-0 - Infeccao experimental de amblyomma sp. (acari: ixodidae) com hepatozoon canis (apicomplexa: hepatozoidae) em caes naturalmente infectados.
• Beneficiário: Adriano Stefani Rubini
• Modalidade de apoio: Bolsas no Brasil - Doutorado