You seem to be assuming there was some sort of widespread goverment medical system used by the black populations, which I don't think ever existed during that era.
If a widespread government network of hospitals and clinics existed, that was used by a significant proportion of the non white population, which could be used as a delivery mechanism for a crazed genocidal policy like proposed then I suspect that SA would have been a very different country entirely. Mustering the political will amongst the white polity to create and fund such a comprehensive government medical system for non Whites (that might later be co-opted by the genocide) would I think imply that SA was a much nicer, caring society than it was in OTL. I can't imagine a pre or Apartheid parliament or electorate supporting a programme to fund such a healthcare system
You would have to have a POD really early in the 20th century I think - perhaps no 2nd Boer War or at least a nicer one, that doesn't help force feed Afrikaner nationalism, to the extent that the Afrikaners later sustain parties like the Hertzog led National Party or the later, reformed "pure" National Party of Malan and the ilk (the latter being the party of Apartheid)
If a widespread government network of hospitals and clinics existed, that was used by a significant proportion of the non white population, which could be used as a delivery mechanism for a crazed genocidal policy like proposed then I suspect that SA would have been a very different country entirely. Mustering the political will amongst the white polity to create and fund such a comprehensive government medical system for non Whites (that might later be co-opted by the genocide) would I think imply that SA was a much nicer, caring society than it was in OTL. I can't imagine a pre or Apartheid parliament or electorate supporting a programme to fund such a healthcare system
You would have to have a POD really early in the 20th century I think - perhaps no 2nd Boer War or at least a nicer one, that doesn't help force feed Afrikaner nationalism, to the extent that the Afrikaners later sustain parties like the Hertzog led National Party or the later, reformed "pure" National Party of Malan and the ilk (the latter being the party of Apartheid)