Parasitology Research

, 105:1509

Detection of dog filariasis in Marajo Island, Brazil by classical and molecular methods

  • Adriano P. Furtado
  • Eder S. Do Carmo
  • Elane G. Giese
  • Antonio C. R. Vallinoto
  • Reinalda M. Lanfredi
  • Jeannie N. Santos
Original Paper

DOI: 10.1007/s00436-009-1584-9

Cite this article as:
Furtado, A.P., Do Carmo, E.S., Giese, E.G. et al. Parasitol Res (2009) 105: 1509. doi:10.1007/s00436-009-1584-9

Abstract

Canine filariasis in domestic and wild dogs, foxes, and wolves is caused by several species of filarids. Although these filarial species inhabit different loci in the vertebrate definitive hosts, they generally release microfilariae into the bloodstream. Data about filarial infection in dogs in Brazil, especially on the Marajo Island, is scarce. For this reason, we conducted an analysis of 188 domestic dogs within two Marajo Island municipalities. The overall prevalence of microfilaremic was 32.45%; taken by blood smear and modified Knott’s method. No significant difference of positivity between male and female was observed (X2 Yates’s correction = 0.341; p = 0.559). Significant age–infection ratios were detected (X2 = 32.943; p < 0.0001). A high occult infection was detected (53.84%). PCR of rDNA and phylogenetic tree indicated that the microfilariae and adult worms found in domestic dogs from Marajo Island were Dirofilaria immitis.

Copyright information

© Springer-Verlag 2009

Authors and Affiliations

  • Adriano P. Furtado
    • 1
  • Eder S. Do Carmo
    • 1
  • Elane G. Giese
    • 1
  • Antonio C. R. Vallinoto
    • 2
  • Reinalda M. Lanfredi
    • 1
    • 3
  • Jeannie N. Santos
    • 1
  1. 1.Laboratório de Biologia Celular e Helmintologia “Profa. Dra. Reinalda Marisa Lanfredi”, Instituto de Ciências BiológicasUniversidade Federal do ParáBelémBrasil
  2. 2.Laboratório de Virologia, Instituto de Ciências BiológicasUniversidade Federal do ParáBelémBrasil
  3. 3.Laboratório de Biologia de Helmintos Otto Wucherer, Instituto de Biofísica Carlos Chagas FilhoUniversidade Federal do Rio de JaneiroRio de JaneiroBrazil