Gut Parasite, Humans Infested by Undercooked Meat
Puzzle 11 of Vienna Hard Pack
Question is: Gut Parasite, Humans Infested by Undercooked Meat
and the answer is: TAPEWORM
Word Meaning:
TAPEWORM — (countable) Any parasitical worm of the class or infraclass Cestoda, which infests the intestines of animals, including humans, often infecting different host species during their life cycle.
Definitions from Wiktionary.