Pathogenesis

  • Viraemia
  • CNS replication within a week, causing:
    • Paralysis of the lips
    • Drooping eyelids
    • Incoordination
  • Often fatal

Epidemiology

  • Transfer via vector: mostly through mosquito salivary transfer

Diagnosis

  • Clinical signs
  • Virus isolation can be performed from blood or spinal fluid

Control

  • Annual vaccination
  • Vector control
  • Human vaccination recommended for vets in endemic areas

VEE in Donkeys