tapeworm in commercial red meat

Eating undercooked meat from cows infected with tapeworm larvae can cause tapeworm infection in humans. 1 2 Symptoms of tapeworm infection include the presence of the young parasite, called a larva, in the bloodstream and muscles, which forms a protective shell, called a cyst. 1 Trichinellosis, also called trichinosis, is caused by eating raw or undercooked meat of animals infected with the larvae of a species of worm called Trichinella. 2