This is a tropical disease that is common in Upper Egypt and the Sudan. Despite the fact that for centuries untold numbers of Europeans have visited the regions it still hasn’t taken hold in Europe.
I would suspect that in practice a major factor is that Europe has had better sanitation that almost all of Africa dating back almost to the Roman Republic.
Likely reasons include: The life cycle of this worm requires a certain species or genera of Snail that is not present in Europe. The Snail needs to be excreted from it’s human host into waters with snails and even semi-modern sanitation does a good job of preventing this.