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| Encephalitis Virus, Western Equine Encephalomyelitis Virus, Western Equine | WEE Virus | Western equine encephalitis virus | Encephalitis Viruses, Western Equine | Virus, Western Equine Encephalitis | Viruses, Western Equine Encephalitis | Western Equine Encephalitis Viruses A species of ALPHAVIRUS that is the etiologic agent of encephalomyelitis in humans and equines in the United States, southern Canada, and parts of South America. |