At least 7 different Bunyamwera serogroup viruses have been isolated from humans, usually from blood, including Bunyamwera, Germiston, Ilesha, and Shokwe viruses in Africa;
Xingu virus in South America; Wyeomyia virus and a Cache Valley-like virus in Central America; and CVV in the southeastern United States (1,2,5, 7,8).