Description: English: This diagram illustrates the methods by which the arbovirus, Western equine encephalitis virus (WEEV) reproduces and amplifies itself in both avian populations, and rodent populations, and is subsequently transmitted to dead end hosts including humans and horses by the Culex tarsalis mosquito. Western equine encephalitis virus, is a member of the family Togaviridae, and the genus Alphavirus, is closely related to Eastern and Venezuelan equine encephalitis viruses. Date: 1976. Source:
https://phil.cdc.gov/Details.aspx?pid=14996. Author: CDC/ Dr. Thomas Monath.