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Investigation of African swine fever outbreaks in pigs outside the controlled areas of South Africa, 2012–2017. Van Rensburg Leana Janse, Van Heerden Juanita, Penrith Mary-Louise, Heath Livio, Rametse Thapelo, Etter Eric. 2020. Journal of the South African Veterinary Association, 91:a1997, 9 p.