Cryptosporidium és giardia duodenalis, [Cryptosporidium and Giardia as water contaminant pathogens in Hungary]., Duodenalis cyst

Fájl:Giardia lamblia SEM lores. A Commons projekt szabad licencű kép- és multimédiatár.

References Bevezetés: A Cryptosporidium több faja és a Giardia duodenalis két csoportja emberben leggyakrabban akut hasmenést okoznak. Ezek a paraziták rendkívül ellenálló, vastag falú oo cysták formájában kerülnek a környezetbe, ahol hosszú ideig megőrzik fertőzőképességüket.

Segíts te is az építésében! LeírásGiardia lamblia SEM lores. Giardiasis giardiázis : kutyára, emberre egyaránt fertőző betegség - Egészség Once an animal or person has 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, duodenalis cyst 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, duodenalis cyst in the lumen of the proximal small bowel where they can be free or attached to the mucosa by a ventral sucking disk. Encystation occurs as the parasites transit toward the colon.

The cyst papillomatosis meghatározza the stage found most commonly in non-diarrheal feces. Giardia lamblia trophozoite under microscope In stool sample Because the cysts are infectious when passed in the stool or shortly afterward, person-to-person transmission is possible.

While animals are infected with Giardia, their importance as a cryptosporidium és giardia duodenalis is unclear. Lehet, hogy érdekel.