Tapeworm
A worm that is flattened like a tape measure and functions as an intestinal parasite, unable to live freely on its own but able to do so within an animal's gut.
The eggs usually enter the body via raw or uncooked beef.
Symptoms of their presence are usually absent.
However, some patients experience abdominal pain, fatigue, weight loss, and diarrhea.
Treatment with medication results in a cure within days.