Colonizing overseas has never been an easy matter, especially for an emerging colonial empire like Austria, which had much to learn.
The African continent in this era was far from a hospitable place; the most formidable enemy was not the native tribes, but rather the harsh natural environment.
Poisonous insects, fierce beasts, and rampant diseases were the core factors that constrained the colonization of Africa by various nations. Otherwise, the nearby African continent would have long been completely carved up by everybody.
Frankly speaking, if the production technology of quinine had not made a breakthrough and the major problem of malaria had not been preliminarily solved, Franz would not have dared to recklessly set foot on the African continent.
For safety's sake, all Austrian soldiers were receiving education in hygiene practices, including personal and camp sanitation, all of which had to be rigorously according to standards.