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Amoebae -Amoebae that infect human being are divided into: 1-Intestinal amoebae .

Amoebae -Amoebae that infect human being are divided into: 1-Intestinal amoebae . a- Commensals in man (non-pathogenic) as: - Entamoeba coli. - Entamoeba hartmanni . - Entamoeba gingivalis . - Endolimax nana. - Iodamoeba butschlii . b-Pathogenic to man:

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Amoebae -Amoebae that infect human being are divided into: 1-Intestinal amoebae .

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  1. Amoebae -Amoebae that infect human being are divided into: 1-Intestinal amoebae. a-Commensals in man (non-pathogenic) as: -Entamoeba coli. -Entamoebahartmanni. -Entamoebagingivalis. -Endolimax nana. -Iodamoebabutschlii. b-Pathogenic to man: - Entamoebahistolytica. 2-Free living amoebae (pathogenic): -Naegleriafowleri. -Acanthamoeba spp.

  2. Entamoebahistolytica-Morphology

  3. Trophozoite

  4. cyst

  5. Pathogenesis The invasiveness of the strain: 1-phagocytic activity. 2-production of cytolytic enzymes. 3-production of cytotoxins (enterotoxins). 4-resistance to the host's inflammatory response. 5-contact-dependent cytolysis

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