SPADA Working Groups ~ April Meeting Book
Epizootic VEE Transmission
Primary Vector multiple mosquito species
h Ot er species naturally infected but not amplifiers
Vertebrate H t os : Horses
Dead-end hosts : Humans –epidemics of ’flu like illness, encephalitis
VEE - high viremia in horses – movement control is appropriate
Epizootic VEEV infections
• Equine pathogen – In natural outbreaks, equine cases precede human • Equids are primary amplifier for human infections • Expect simultaneous impact in bioterrorism event • Human pathogen – Adults experience influenza‐like illness • Attack rate nearly 100% • 1‐5 day incubation, illness 1‐2 weeks • Malaise, spiking fever, rigors, severe headache, photophobia, myalgia in legs and lumbosacral area • Nausea, vomiting, cough, sore throat, diarrhea
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