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Tissue stages of Hepatozoon canis in naturally infected dogs from São Paulo State, Brazil

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Abstract

A total of 222 dogs were examined by blood smear examination and Hepatozoon canis infection was detected in 13 dogs (5.9%). Five H. canis-infected dogs were necropsied to observe tissue stages in the organs. Fragments of spleen, liver, lungs, heart, kidneys, lymph nodes, bone marrow and skeletal muscles were used to made touch-impression smears. No macroscopic lesions were found in the organs. Two dogs had gamonts within polymorphonuclear cells and schizonts in various stages of development within the spleen and the bone marrow. Nevertheless, no mature meronts were found.

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Fig. 1a–f

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Acknowledgements

We wish to thank Dr. Júlio L. Sequeira and Fábio Melero for performing the necropsy of the dogs. The experiments comply with the current laws of Brazil.

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Authors and Affiliations

  1. Departamento de Parasitologia, Instituto de Biociências, Universidade Estadual Paulista (UNESP), 18618-000, Botucatu, São Paulo, Brazil

    Lucia Helena O’Dwyer

  2. Departamento de Clínica Veterinária, Faculdade de Medicina Veterinária e Zootecnia, UNESP, Botucatu, São Paulo, Brazil

    Mere Erika Saito, Márcia Yumiko Hasegawa & Aguemi Kohayagawa

Authors
  1. Lucia Helena O’Dwyer
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  2. Mere Erika Saito
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  3. Márcia Yumiko Hasegawa
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  4. Aguemi Kohayagawa
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Corresponding author

Correspondence to Lucia Helena O’Dwyer.

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O’Dwyer, L.H., Saito, M.E., Hasegawa, M.Y. et al. Tissue stages of Hepatozoon canis in naturally infected dogs from São Paulo State, Brazil. Parasitol Res 94, 240–242 (2004). https://doi.org/10.1007/s00436-004-1190-9

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  • DOI: https://doi.org/10.1007/s00436-004-1190-9

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