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Several outbreaks of Rift Valley fever (RVF) have been documented in South Africa since it first  occurred in the country in 1950. However, there is no comprehensive account of the timing,  location and extent of all known outbreaks. As part of a study investigating the epidemiology  of RVF in South Africa, a full history of outbreaks was compiled using references to the disease  in South Africa from scientific literature, annual reports, disease reports and animal disease  databases. The geographic location and temporal occurrence of each outbreak were recorded  as accurately as allowed by the available records. The result was a better and more complete  picture than has hitherto been available of the spatial and temporal distribution of RVF in  South Africa for the period between 1950 and 2011. Several smaller outbreaks which had not  been described previously in literature were documented. Extensive outbreaks occurred in  the central interior of the country (Free State, Eastern Cape and Northern Cape provinces),  interspersed with smaller outbreaks or long intervening periods of absence, whilst smaller  outbreaks occurred in the eastern part of the country (KwaZulu-Natal, Mpumalanga and  Gauteng).

Temporal and spatial history of Rift Valley fever in South Africa: 1950 to 2011