Thrombotic meningoencephalitis (TME) by Histophilus somni in sheep in Uruguay

Authors

  • A. Romero DILAVE Miguel C Rubino, Laboratorio Regional Este, Avelino Miranda 2045, Treinta y Tres, Uruguay.
  • C. Quinteros DILAVE Miguel C Rubino, Laboratorio Regional Este, Avelino Miranda 2045, Treinta y Tres, Uruguay.
  • P. Marinho Ejercicio liberal, Veterinarios Asociados, General Artigas 789, Melo, Uruguay.
  • D. O´'Toole Wyoming State Veterinary Laboratory, Department of Veterinary Sciences, Laramie, WY 82070, USA
  • F. Dutra DILAVE Miguel C Rubino, Laboratorio Regional Este, Avelino Miranda 2045, Treinta y Tres, Uruguay.

Keywords:

Sheep, Thrombotic meningoencephalitis, TEME, Histophilus somni, Brain abscess immunohistochemistry

Abstract

The purpose of this study was to communicate the occurrence of thrombotic meningoencephalitis (TME) by Histophilus somni in sheep in Uruguay. During the mating season of May 2011, in a flock of 100 animals, 1 breeding ewe and 1 ram died after showing fever, weakness, ataxia, blindness, convulsions and recumbence. Macroscopically, the brain of the ram had hemorrhages in the leptomeninges and numerous foci of liquefactive necrosis (2-5 mm) at the gray-white junction of cerebral hemispheres, basal gray nuclei and thalamus. Microscopically, the foci consisted of suppurative necrosis, vascular thrombosis and numerous bacterial colonies inside the abscesses. Immunohistochemistry assays performed on paraffin-embedded tissues were positive for Histophilus somni confirming the cause of the disease.

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Published

2013-09-01

How to Cite

Romero, A., Quinteros, C., Marinho, P. ., O´’Toole, D., & Dutra, F. (2013). Thrombotic meningoencephalitis (TME) by Histophilus somni in sheep in Uruguay. Veterinaria (Montevideo), 49(191), 38–47. Retrieved from https://revistasmvu.com.uy/index.php/smvu/article/view/242

Issue

Vol. 49 No. 191 (2013): September

Section

Technical Notes

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