Answer: hookworms

AnswerCrossword Clue
hookwormsHOOKWORM, a parasitic worm
hookwormsA disease caused by an infestation of hookworms, often resulting in severe anemia
hookwormsA parasitic nematode worm that inhabits the intestines of humans and other animals. It has hooklike mouthparts with which it attaches itself to the wall of the gut, puncturing the blood vessels and feeding on the blood