Volume 15, Number 6—June 2009

Research

Lineage 2 West Nile Virus as Cause of Fatal Neurologic Disease in Horses, South Africa

Marietjie Venter , Stacey Human, Dewald Zaayman, Gertruida H. Gerdes, June Williams, Johan Steyl, Patricia A. Leman, Janusz Tadeusz Paweska, Hildegard Setzkorn, Gavin Rous, Sue Murray, Rissa Parker, Cynthia Donnellan, and Robert Swanepoel

Author affiliations: University of Pretoria, Pretoria, South Africa (M. Venter, S. Human, D. Zaayman, J. Williams, J. Steyl, C. Donnellan); National Health Laboratory Services, Pretoria (M. Venter); Onderstepoort Veterinary Research Institute, Pretoria (G.H. Gerdes); National Institute for Communicable Diseases, Johannesburg, South Africa (P. Leman, J.T. Paweska, R. Swanepoel); Chartwell Equine Clinic, Midrand, South Africa (H. Setzkorn); Karoo Veterinary Clinic, Colesburg, South Africa (G. Rous); Witbos Clinic, Midrand (S. Murray); Glen Austin Equine Clinic, Midrand (R. Parker)

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Figure 1

Figure 1. Histopathologic section of 2 lumbar spine gray matter dendrites that stained immunohistochemically positive with flavivirus antiserum on postmortem tissue of horse HS101/08. Magnification ×1,000.

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