Презентация на тему: Medical Academy named after S.I. Georgievsky CFU . Biological bases of parasism

Medical Academy named after S.I. Georgievsky CFU . Biological bases of parasism
Medical Academy named after S.I. Georgievsky CFU . Biological bases of parasism
Medical Academy named after S.I. Georgievsky CFU . Biological bases of parasism
Medical Academy named after S.I. Georgievsky CFU . Biological bases of parasism
MORPHOLOGY
Medical Academy named after S.I. Georgievsky CFU . Biological bases of parasism
CYST MORPHOLOGY
Medical Academy named after S.I. Georgievsky CFU . Biological bases of parasism
Medical Academy named after S.I. Georgievsky CFU . Biological bases of parasism
Medical Academy named after S.I. Georgievsky CFU . Biological bases of parasism
LIFE CYCLE
Medical Academy named after S.I. Georgievsky CFU . Biological bases of parasism
Medical Academy named after S.I. Georgievsky CFU . Biological bases of parasism
PATHOGENECITY
DISEASE
DIAGNOSIS
TREATMENT
PREVENTION  and CONTROL
Medical Academy named after S.I. Georgievsky CFU . Biological bases of parasism
Medical Academy named after S.I. Georgievsky CFU . Biological bases of parasism
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Medical Academy named after S.I. Georgievsky CFU . Biological bases of parasism class Sarcodina Presentation by prajapat kalpesh 192B Scientific Advisor – Svetlana ma’am

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Entamoeba Histalytica

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Слайд 5: MORPHOLOGY

The trophozoites are 20-30 µm in diameter and contain a vesicular nucleus with a central endosome, peripheral chromatin and radial achromatic fibrils (imparting a 'cart-wheel' appearance). The cysts are spherical measuring 10-15 µm in diameter and have 4 nuclei.

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Слайд 7: CYST MORPHOLOGY

Cysts  are typically found in formed stool, whereas trophozoites are typically found in diarrheal stool. Infection with  Entamoeba histolytica  (and E.dispar ) occurs via ingestion of mature  cysts  from fecally contaminated food, water, or hands.

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Слайд 11: LIFE CYCLE

Infection by  Entamoeba histolytica  occurs by ingestion of mature cysts (2) in fecally contaminated food, water, or hands. Excystation (3) occurs in the small intestine and trophozoites (4) are released, which migrate to the large intestine.

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Слайд 14: PATHOGENECITY

Entamoeba histolytica, a protozoan parasite, is the etiologic agent of amoebiasis in humans. It exists in two forms—the trophozoite which is the active, dividing form, and the cyst which is dormant and can survive for prolonged periods outside the host. In most infected individuals the trophozoites exist as commensals.

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Слайд 15: DISEASE

Entamoeba histolytica is an anaerobic parasitic amoebozoan, part of the genus Entamoeba. Predominantly infecting humans and other primates causing amoebiasis, E. histolytica is estimated to infect about 35-50 million people worldwide. E. histolytica infection is estimated to kill more than 55,000 people each year.

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Слайд 16: DIAGNOSIS

A single stool examination has a low sensitivity of detecting the parasite. The best  diagnostic  method is detection of E.  histolytica  antigen or DNA in stool. Clinical  diagnosis  of amebiasis is difficult because of the nonspecific nature of symptoms

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Слайд 17: TREATMENT

To  treat  invasive amebiasis, metronidazole ( Flagyl, MetroGel, Noritate ) is recommended even for amoebic liver abscesses (up to 10 cm sized abscesses). Tinidazole ( Tindamax ) is FDA approved for  treatment  of both intestinal or extraintestinal (invasive) amebiasis.

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Слайд 18: PREVENTION  and CONTROL

Improved sanitation will help to reduce the liklihood of transmission. Travelers to endemic areas can reduce the risk of infection by drinking bottled water, not using ice cubes in drinks, and washing fruits and vegetables with clean water (or by peeling them yourself).

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THANKS FOR YOUR ATTENTION

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