NCVP - National Center for Veterinary Parasitology

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  • Home
  • Resources
    • People >
      • Directors and Advisory Board
      • Residents >
        • Boehringer Ingelheim Resident
        • Elanco Resident
        • IDEXX Resident
        • Merck Resident
        • Zoetis Resident
      • NCVP Alums
      • Clinical Parasitology Support
      • Additional Support
      • Sponsors
    • Parasite Image Database >
      • Protozoa
      • Arthropods
      • Nematodes
      • Trematodes
      • Cestodes
      • Acanthocephala
      • Tick-Borne Disease Agents
    • Case of the Month
    • Teaching and Research Materials >
      • Teaching Specimen Request
      • Parasite Jeopardy Games
      • Parasite Videos
    • Online Resources >
      • Parasitology Board Preparation
      • Additional Parasitology Resources
      • Resources for Educators
    • NCVP Board Member Resources
    • NCVP Zoom Backgrounds
    • Residents' Corner
  • News
    • Veterinary Parasitology in the News
    • NCVP Newsletter
  • Opportunities
    • Request for Proposals
    • Residency Application
    • Continuing Education in Parasitology
    • Positions Open in Veterinary Parasitology

Protozoa

Amebas

 

Entamoeba spp.

Entamoeba coli
Cyst of Entamoeba coli stained with iodine from an infected olive baboon, Papio anubis. Mature cysts can have up to 8 nuclei.
Entamoeba histolytica / dispar
Entamoeba histolytica / dispar cysts stained with iodine from an infected olive baboon, Papio anubis. The cysts of ​Entamoeba histolytica and Entamoeba ​dispar are considered morphologically indistinguishable. Mature cysts are spherical, have 4 nucleii, and measure 12 to 18 µm in diameter. ​
Entamoeba invadens
Entamoeba invadens trophozoite from tissue of a tortoise. An important pathogen of captive reptiles, Entamoeba invadens is the causative agent of amoebiasis in reptiles. Trophozoites measure 10-38 μm by 9-30 μm and contain one to four nuclei.
Lesion of Entamoeba invadens in the stomach of a tortoise. Lesions typically occur in the intestinal tract and liver, creating ulcers characterized by hyperemia, inflammation, and an infiltration of neutrophils. Amebae are found at the periphery of the ulcer, leaving the cavity filled with necrotic tissue

Naegleria fowleri

Feeding trophozoites in a section of brain tissue. Naegleria fowleri causes primary amebic meningoencephalitis (PAM) in humans.

    Categories

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    Amebas
    Apicomplexa
    Ciliates
    Flagellates