Echinostomes are medically- and veterinary-important parasitic flatworms that invade humans, domestic animals and wildlife and also parasitize in their larval stages numerous invertebrate and cold-blooded vertebrate hosts. The interest in echinostomes in parasitology and general biology comes from several areas: (1) Human infections; (2) Experimental models; (3) Animal infections; (4) Systematics. The application of novel techniques is moving...