Rift Valley fever, South Africa - update.
D004196:Disease Outbreaks / Q000517:prevention & control*; D005260:Female; D006801:Humans; D012295:Rift Valley Fever / Q000453:epidemiology* / Q000517:prevention & control / Q000635:transmission; D013019:South Africa / Q000453:epidemiology; D014195:Travel; D014944:World Health Organization