The Venezuelan equine encephalitis virus, or Venezuelan equine encephalitis (VEE), is a mosquito-borne pathogen which causes encephalomyelitis and can affect all species of horses. After infection, equines may die suddenly or show progressive disorders to the central nervous system. Humans can also contract the disease and may experience flu-like symptoms in otherwise healthy adults, while the young, the elderly, and those with weakened immune systems may become very ill or die.
