Jan 5, 2023 · If a cow, the intermediate host, eats grass with these eggs on it, the eggs hatch in its intestines. The young parasite, called a larva, passes into the bloodstream and moves to muscles.

Oct 9, 2025 · Tapeworm eggs are passed in stool and can then infect new hosts, animals, and humans. Learn the symptoms of this rare infection in the U.S. and how to treat it.

Jul 26, 2022 · Human and animal waste that contaminates food and water supplies may include the microscopic tapeworm eggs. When humans ingest the eggs, they hatch into larvae in their intestines, …

Sep 17, 2025 · Tapeworms are intestinal parasites similar in shape to tape measures. Their eggs typically enter a human host from animals through food, particularly raw or undercooked meat.

Taeniasis is the infection of humans with the adult tapeworm of Taenia saginata, T. solium or T. asiatica. Humans are the only definitive hosts for these three species. Eggs or gravid proglottids are passed …

Nov 9, 2024 · Tapeworms have a three-stage lifecycle: an egg, an immature stage called a larva, and an adult stage at which the worm can produce more eggs. Because larvae can get into the muscles of …

What causes tapeworm infection? Animals sometimes eat things contaminated with tapeworm eggs. The eggs hatch and burrow into the muscles of the animal and form cysts.

Adult tapeworm infections are diagnosed by identifying eggs or gravid proglottid segments in stool. Neurocysticercosis (larval disease in the CNS) is best identified by imaging (eg, brain CT and/or MRI).

Dec 19, 2025 · Tapeworms enter the body when someone ingests the eggs or larvae of tapeworms. 9 Eating raw or undercooked pork, beef, or fish containing tapeworm eggs or larvae is the most …

Nov 9, 2025 · Ingesting the eggs (larvae) of pork tapeworms (Taenia solium) in feces can cause an infection called cysticercosis.