There is a good reason to give ivermectin to afghan refugees. Because 1/4 of them suffer from parasites.
Among adults, 9/37 (24.3%) patients were infected with intestinal parasites including Ascaris lumbricoides and Giardia intestinalis. Conclusions: The Afghan community, living in poor sanitary conditions with limited access to health services, is one of the most infected populations in the world.
Ivermectin is an anti-parasitic drug that is used to treat river blindness and intestinal roundworm infection in humans