blaauwtong

Updated: May 6, 2025

Malarial manifestations occur all over South Africa, but in progressive degrees of virulence with the advance to warmer latitudes, and with the descent from the high table-lands to the coast levels. On the Transvaal high veldt, for example, a mild form is developed which, in midsummer, to a small extent, affects and kills sheep. It is called blaauwtong, and does not affect horses.

C. H. Thomas - Origin of the Anglo-Boer War Revealed (2nd ed.): The Conspiracy of the 19th Century Unmasked

Sheep and horses could not with safety remain longer in those warm regions, as then the fatal malarial blaauwtong begins there to attack sheep, and horse sickness becomes virulent as well. The high veldt, as said before, is exempt from that danger.

C. H. Thomas - Origin of the Anglo-Boer War Revealed (2nd ed.): The Conspiracy of the 19th Century Unmasked