A Commons projekt szabad licencű kép- és multimédiatár. Segíts te duodenalis infection az építésében! LeírásGiardia lamblia SEM lores.
Ciri ciri invertebrata platyhelminthes - tripsta. E gyógyszerek bármelyikének tablettája elegendő a giardiasis, toxocariasis. Toxocariasis is often called visceral larva migrans VLM. Dec 09, · Giardiasis is diagnosed by the identification of cysts or trophozoites in the feces, using direct mounts as well as concentration procedures.
Once an animal or person érett láncízületek been infected with this protozoan, the parasite lives in the intestine, and is passed in the stool. Because the parasite is protected by an outer shell, it can survive outside the body, and in the environment for long periods of time.
Cysts are resistant forms and are responsible for transmission of giardiasis. Both cysts and trophozoites can be found in the feces diagnostic stages.
The cysts are hardy and can survive several months in cold water. Infection occurs by the ingestion of cysts in contaminated water, food, or by the fecal-oral route hands or fomites.
In the small intestine, excystation releases trophozoites each cyst produces two trophozoites. Trophozoites multiply by longitudinal binary fission, remaining in the lumen of the proximal small bowel where they can be free or attached to the mucosa duodenalis infection a ventral sucking disk.
Encystation occurs as the parasites transit toward the colon. The cyst is the stage found most commonly in non-diarrheal feces.
Because the cysts are infectious when passed in the stool or shortly afterward, person-to-person transmission is possible. Duodenalis infection animals are infected with Giardia, their importance as a reservoir is unclear.