Peter Timoney, FRCVS, PhD, is head of the Gluck Equine Research Center in Kentucky and one of the world’s leading authorities on equine infectious disease.


Q: What is West Nile encephalitis?


Inflammation of the central nervous system (brain and spinal cord) caused by a mosquito-borne virus named West Nile virus. This virus was first identified as far back as 1935. Historically it is known to be distributed in Africa, the Middle East, and Southwest Asia. It has been introduced in sporadic occasions in various southern European countries. It has never been previously isolated or known to occur in the Americas

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