Scurt istoric asupra cercetării parazitului giardia intestinalis

Giardia enterica

Conținutul

    giardia enterica

    Consultați pagina sa descriptivă acolo. DescriereGiardia muris trophozoite SEM The ventral adhesive disk resembles a suction cup, where overlapping microtubules giardia enterica the cytoplasm form a numbershaped figure. The adhesive disk facilitates adherence of the protozoan to the intestinal surface.

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    The protozoan Giardia causes the diarrheal disease called giardiasis. Giardia species exist as free-swimming by means of flagella giardia enterica, and as egg-shaped cysts.

    It is the cystic stage, which facilitates the survival of giardia enterica organisms under harsh environmental conditions.

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    The cyst is considered the infective form, and disease is often transmitted by drinking contaminated water. As depicted in these SEMs, in giardia enterica intestine, cysts giardia enterica stimulated to liberate trophozoites. Cysts can be shed in fecal material, and can, thereafter, remain viable for several months in appropriate environmental conditions.

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    Cysts can also be transferred directly from person-to-person, as a result of poor hygiene. Note: Not all PHIL images are public domain; be sure to check copyright status conjunctival papilloma causes credit authors and content providers.

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