Signs and symptoms Diphyllobothriasis



symptoms of parasite infection raw fish: clonorchis sinensis (a trematode/fluke), anisakis (a nematode/roundworm) , diphyllobothrium (cestode/tapeworm), have gastrointestinal, otherwise distinct, symptoms.


diphyllobothriasis can last decades if untreated. infections asymptomatic. manifestations may include abdominal discomfort, diarrhea, vomiting , weight loss. vitamin b12 deficiency subsequent megaloblastic anemia may occur, has not several decades in d. latum infections, possibly because of improved nutrition. in 1 test, half of ingested vitamin absorbed d. latum in otherwise healthy patients, while 80-100% absorbed worm in patients anemia. not known why anemia occurs in cases not others. massive infections may result in intestinal obstruction. migration of proglottids can cause cholecystitis or cholangitis.


females cases disproportionately reported, due higher likelihood them involved in meal preparation, rather morphological differences.








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