Question: Fenbendazole is ineffective against which parasite that is also called the flea tapeworm?
Sentence (from "Dipylidium caninum"): Dipylidium caninum, also called the flea tapeworm, double-pore tapeworm, or cucumber tapeworm (in reference to the shape of its cucumber-seed-like proglottids, though these also resemble grains of rice or sesame seeds), is a cyclophyllid cestode that infects organisms afflicted with fleas and canine chewing lice, including dogs, cats, and sometimes human pet-owners, especially children.
Relevant evidence: Yes