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The Veterinary Record, Vol 138, Issue 14, 323-326
Copyright © 1996 by British Veterinary Association
1 Department of Veterinary Medicine, University of Ibadan, Ibadan, Nigeria
2 Department of Virology, University of Ibadan, Ibadan, Nigeria
3 Department of Veterinary Pathology, University of Ibadan, Ibadan, Nigeria
4 Vetech Clinic, Onireke, Ibadan, Nigeria
Thirteen cases of a disease with a low morbidity and very high mortality in horses in Nigeria are described; the disease is characterised by fever (rectal temperature
40°C), generalised muscle spasms, ataxia, increased respiratory and heart rates and terminal lateral recumbency. The illness generally lasts three to five days but durations of 12 to 30 hours have been observed. Laboratory investigations, including histopathology and serology suggest a viral aetiology, possibly an alphavirus of the equine encephalitis group.
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