Rift valley fever in South Africa. 2. The occurrence of human cases in the Orange Free State, the North-Western Cape Province, the Western and Southern Transvaal. B. Field and laboratory investigation.
D000818:Animals; D006801:Humans; D007753:Laboratories; D012295:Rift Valley Fever / Q000453:epidemiology* / Q000706:statistics & numerical data*; D013019:South Africa
RIFT VALLEY FEVER/epidemiology and statistics