Encephalomyelitis in a calf associated with the protozoan Neospora caninum in the Parana State, Brazil

Authors

  • Ana Paula Millet Evangelista dos Santos Faculdades Luiz Meneghel
  • Italmar Teodorico Navarro Universidade Estadual de Londrina
  • Odilon Vidotto Universidade Estadual de Londrina
  • Ana Paula F. Rodrigues Loureiro Bracarense Universidade Estadual de Londrina

DOI:

https://doi.org/10.5433/1679-0359.2006v27n1p111

Keywords:

Neospora caninum, Encephalomyelitis, Calf, Immunohistochemical.

Abstract

A 21 days old Jersey male calf showing neurological signals was examined by the Pathology Emergency Service of Veterinary Hospital of State University of Londrina, Parana, Brazil. After the euthanasia the calf was submitted to the necropsy and fragments of cerebral cortex, cervical area of the spinal marrow, heart, liver and lung were picked for histological exams and virus isolation. No viral agent was isolated from the processed tissues of the calf. The histological exams revealed several ovoid and spherical cysts of protozoan in the brain and spinal marrow. These cysts showed positive reaction in the immunohistochemical (IHQ) for the N. caninum and also for T. gondii. Sera samples of the calf mother’s also presented positive serology for N. caninum, T. gondii, BHV-1 and VBVD. The results of the maternal serology, IHQ, histopathology and clinical signs that the calf presented suggest the involvement of the N. caninum in the case. This is the first report of congenital neosporose in calf in the state of Paraná-Brazil.

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Author Biographies

Ana Paula Millet Evangelista dos Santos, Faculdades Luiz Meneghel

Departamento de Medicina Veterinária e Produção Animal, Faculdades Luiz Meneghel (FFALM), Bandeirantes-PR, Brasil.

Italmar Teodorico Navarro, Universidade Estadual de Londrina

Departamento de Medicina Veterinária Preventiva, Universidade Estadual de Londrina (DMVP-UEL), Londrina-PR, Brasil.Campus Universitário.

Odilon Vidotto, Universidade Estadual de Londrina

Departamento de Medicina Veterinária Preventiva, Universidade Estadual de Londrina (DMVP-UEL), Londrina-PR, Brasil.Campus Universitário.

Ana Paula F. Rodrigues Loureiro Bracarense, Universidade Estadual de Londrina

Departamento de Medicina Veterinária Preventiva, Universidade Estadual de Londrina (DMVP-UEL), Londrina-PR, Brasil.Campus Universitário.

Published

2006-06-30

How to Cite

Santos, A. P. M. E. dos, Navarro, I. T., Vidotto, O., & Bracarense, A. P. F. R. L. (2006). Encephalomyelitis in a calf associated with the protozoan Neospora caninum in the Parana State, Brazil. Semina: Ciências Agrárias, 27(1), 111–114. https://doi.org/10.5433/1679-0359.2006v27n1p111

Issue

Section

Communication

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