> treating infections by bloodletting (including by leeches) It's actually a working treatment https://en.wikipedia.org/wiki/Hirudo_medicinalis#Medical_use ht

> treating infections by bloodletting (including by leeches) It's actually a working treatment https://en.wikipedia.org/wiki/Hirudo_medicinalis#Medical_use https://en.wikipedia.org/wiki/Hirudo_medicinalis#Medical_use