lands* ^{forgot a word.}

For the sake of a research paper, I am trying to find an example where geopolitical, economic, and health motives were employed by a colonial public health service or some authority to create an ideology of both race and racialized disease. A professor suggested Rhodesia, but I am struggling to find information on that. I thought I would find a prime example of this with white settlers in South Africa, but I am struggling to find sources. Maybe Mozambique or Liberia or Freetown? I know it's difficult to find an exact instance, that combines all these elements so if you know of any examples of racial segregation and land alienation, and racialized disease epidemics and endemics happening tangentially that would still be awesome.