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STAKEHOLDER PANEL ON
AGENT DETECTION ASSAYS
Background & Fitness for Purpose
Venezuelan Equine
Encephalomyelitis Virus
l
l d
h
Ei een N. Ost un , DVM, P D
Diagnostic Virology Laboratory,
National Veterinary Services Laboratories, USDA
AOAC, International Rockville, MD
3 February 2015
VEEV Historical Background
•
VEEV was first isolated in
1936 from a horse brain
during an outbreak of fatal
equine encephalomyelitis in
the Guajira region of
Venezuela
Th i l t
l i ll
–
e so a e was sero og ca y
distinct from eastern and
western equine encephalomyelitis viruses (EEEV, WEEV)
•
Prior outbreaks in horses, mules, donkeys identified
retrospectively (1920’s and 1930’s, included Colombia)