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Essay on giardiasis


essay on giardiasis

all human parasites. If water loss is severe, it can become serious, especially for infants. A typical infection can be slight, resolve without treatment, and last between 26 weeks, although it can sometimes last longer and/or be more severe. Giardia ( /dirdi/ or /drdi/ ) is a genus of anaerobic flagellated protozoan parasites of the phylum Sarcomastigophora that colonise and reproduce in the small intestines of several vertebrates, causing giardiasis. Encystation is a continuous process during infection. There is a small risk of catching giardiasis from a pet, but animals usually have a different kind that does not affect humans. This may occur through the presence of lectin on the surface of the trophozoite or through other mechanical means.

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Fast facts on giardiasis, here are some key points about giardiasis. Whatever the mechanism by which. This is common in countries with poor sanitation. Adhesion of trophozoites to the epithelium has been demonstrated to cause increased epithelial permeability. 16, 25 G intestinalis is genetically heterogeneous with 8 genetically distinct genotypes or assemblages, designated A-H; assemblages A and B can infect humans. The average duration of symptoms in all ages ranges from 3-10 weeks. 18, excystation occurs within 5 minutes of exposure of the cysts to an environment with a pH between.3 and.7. Giardia, with a particular focus on the process of encystation and antigenic variation of this interesting micro-organism. The trophozoite form of, g lamblia is teardrop-shaped and measures 9-21 micrometers long by 5-15 micrometers wide. Giardiasis risk can be minimized by following some simple safety advice: Hand-washing : Wash hands before and after using the bathroom, before and after eating, before and after changing a diaper, and before and after handling food, whether cooking or preparing food. To survive within the intestine, Giardia undergoes antigenic variation, a process by which the parasite continuously josh fields thesis midway switches its major surface molecules, allowing the parasite to evade the host's immune response and produce chronic and recurrent infections.

Find out how it can affect. The intestinal protozoan parasite Giardia intestinalishas a simple life cycle consisting of disease-causing trophozoites and infectious cysts. Giardia is a genus of anaerobic flagellated protozoan parasites of the phylum Sarc omastigophora that colonise and reproduce in the small intestines of several. Giardiasis is a major diarrheal disease found throughout the world.


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