Are hookworms considered zoonotic, and do they inhabit human intestines?

• A. No, they only affect dogs.
• B. Yes, they are zoonotic but do not inhabit human intestines.
• C. Yes, they colonize human large intestine.
• D. Only cats are affected.

Answer: (B)

Hookworms that infect dogs and cats can be passed to people, so they are zoonotic. The typical human infection occurs when larvae in contaminated soil penetrate the skin, usually on the feet or lower legs. In humans, these larvae do not mature into adult worms that live in the intestines; instead, they cause skin-focused issues like cutaneous larva migrans as they migrate through the skin. So the correct point is that hookworms are zoonotic but do not colonize the human large intestine. To reduce risk, practice good deworming and pet hygiene, and wear shoes in areas where contaminated soil may be present.