Disease organisms transmitted by mosquitoes include West Nile virus, Saint Louis encephalitis virus, Eastern equine encephalomyelitis virus, Everglades virus, Highlands J virus, La Crosse Encephalitis virus in the United States; dengue fever, yellow fever, Ilheus virus, malaria, Zika virus and filariasis in the American tropics; Rift Valley fever, Wuchereria bancrofti, Japanese Encephalitis, chikungunya and filariasis in Africa and Asia; and Murray Valley encephalitis in Australia.