Parasitology

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Author:
bassman2572
ID:
121271
Filename:
Parasitology
Updated:
2011-12-06 14:05:43
Tags:
Parasites
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Description:
Parasites of medical importance
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  1. Entamoeba histolytica
    • found in aqueous habitats
    • has both life cycle stages
    • humans are the primary host
    • food borne or waterborne
    • infects intestinal cells
    • diagnosed through fecal flotation
    • symptoms are cramps and bloody diarrhea
  2. Trichomonas vaginalis
    • Flagellate
    • reservoir is the human urogenital tract
    • 50% are asymptomatic
    • strict parasite that does not live long outside the host
  3. Giardia lamblia
    • most common flagellate isolated
    • has both stages
    • can survive up to 2 months in the environment
    • isolated from the intestines of many animals
    • can be found in fresh water
    • displays food borne illness symptons
  4. Trypanosoma brucei
    • blood flagellates
    • vector borne
    • lives in the blood and body tissues of the human host
    • has complicated life cycle
    • African Sleeping Sickness
    • vector is the TseTse fly
  5. Trypanosoma cruzi
    • Chagas disease
    • reduviid bug is the vector
    • mainly South America
    • blood flagellates
    • vector borne
    • lives in the blood and body tissues of the human host
    • has complicated life cycle
  6. Leishmania
    • sand flies are the vector
    • endemic to equatorial regions
    • blood flagellates
    • vector borne
    • lives in the blood and body tissues of the human host
    • has complicated life cycle
  7. Plasmodium
    • Protozoa without well developed locomotor organelles
    • has four species (falciparum, malariae, vivax, ovale)
    • malaria
    • Anopheles mosquito is the vector
    • stained blood smears are definitive diagnosis with patient
    • history
    • uses a quinine drug form for treatment
    • prevention is the best method of control.
  8. Toxoplasma gondii
    • Protozoa without well developed loco-motor organelles
    • toxoplasmosis
    • uses cats for part of its life cycle
    • occurs throughout the world
    • most cases go unnoticed but some progress to severe disease such as in a fetus or AIDS patient
    • cysts can be in raw or undercooked meat
    • mimics mononucleosis or cytomegalovirus infection.
  9. Cryptosproridium
    • Protozoa without well developed loco-motor organelles
    • intestinal parasite of many animals
    • spread in unsanitary water or food

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