Tapeworms in the intestine usually cause no symptoms but may cause abdominal discomfort, diarrhea and loss of appetite.
Tapeworms cause 2 major types of zoonotic disease syndromes, depending on whether humans are the definitive or intermediate host.
When human serve as definitive hosts, adult tapeworms infect the GI tract and interfere with nutrition.
Consumers in western Canada and Alaska become infected by eating raw or undercooked and improperly smoke salmon.
The larval worms are encysted in salmon flesh, usually sockeye salmon, which become infected as young fish during their rather long sojourn in fresh water.
The fish tapeworm is a broad, long worm; often grow to lengths of 3-7 feet at maturity.
Fish tapeworms, the largest parasite that infects humans
