Taenia solium can be found in

1. Analyze the question The question asks which animal Taenia solium can be found in. Taenia solium is the pork tapeworm, so we need to identify its host among the options.

2. Explain the concept Taenia species are parasitic flatworms (class Cestoda) with two hosts:

• Definitive (primary) host: where the adult worm lives, which is the human intestine.
• Intermediate host: where the larval stage (cysticercus or bladder worm) develops in the muscles.

The two common human tapeworms are:

• Taenia solium has the pig as its intermediate host (pork tapeworm).
• Taenia saginata has the cow/cattle as its intermediate host (beef tapeworm).

3. Step-by-step solution

1. The name solium is linked with the pork tapeworm.
2. A human eats undercooked "measly" pork containing cysticerci.
3. The cysticercus develops into the adult tapeworm in the human intestine.
4. The adult releases proglottids with eggs in the faeces.
5. A pig eats the eggs, which hatch into larvae that burrow into the muscles and form cysticerci.

Checking the options:

• A. Cow: host of Taenia saginata, not T. solium.
• B. Goat: not a typical host.
• C. Dog: not a host of T. solium, though dogs carry other tapeworms such as Dipylidium and Echinococcus.
• D. Pig: correct, the intermediate host of Taenia solium.

4. Answer The correct option is D. pig.

5. Exam tip Remember "SOlium = SOw" (a sow is a female pig), and "SAGinata = beef/cattle". JAMB often asks this pairing, so keep both in mind.