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The parasites of medical importance
The parasites of medical importance
23
Microbiology
Undergraduate 3
11/26/2012

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Term
Entamoeba histolytica
Definition
causes Amebiasis humans are primary hosts, spread by water contaminated with sewage to water crops
Term
Naegleria fowleri
Definition
Primary acute menigoencephalitis is caused by nasal contact with water or traumatic eye damage
Term
Balantidium coli
Definition
lives in intestine of sheep, pigs, cattle, horses
Term
Trichomonas vaginalis
Definition
causes Trichomoniasis, lives in urogenital tract
Term
Giardia interstinalis
Definition
Causes Giardiasis, usually ingested with h20 and food, causes sx of diaherra and abdominal pain
Term
Trypanosoma brucei
Definition
causes African Sleeping sickness, spready by tsete flies
Term
Trypanosoma cruzi
Definition
causes Chagas disease, spread by Reduviid bug (kissing bug)
Term
Leishmania mexicana and Leishmania tropica
Definition
casuses Leishamaniasis--zoonosis transmittted among mammalian hosts by female sand flies that require a blood meal to produce eggs
Term
Plasmodium
Definition
agent of malaria
Term
4 species of malaria
Definition
Plasmodium malariae, Plasmodium vivax, Plasmodium falciparum and Plasmodim ovale
--causes chills fever, sweating, anemia, organ enlargement
Term
Toxoplama gondii
Definition
causes toxoplasmosis, lives in cats GI tract
Term
Ascaris lumbricoides
Definition
large intestinal roundworm, allergic reactions can occur, worms retain motitlity do not attach, sever inflammatory reactions mark migratory route
Term
Trichuris trichiura
Definition

Whipworm infection worms can pierce capillaries, casued localized hemorrage and allow bacterial to leave intestine, heavy infestations can cause dysentery, rectal prolapse, and be fatal in children

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Whipworm
The round worm is a worm that causes trichuriasis when it infects a human large intestine. It is commonly known as the whipworm which refers to the shape of the worm; it looks like a whip with wider "handles" at the posterior end. Wikipedia
Scientific name: Trichuris trichiura
Term
Enterobius vermicularis
Definition
Pinworm infection
Term
Necator americanus and Ancylostoma duodenale
Definition
Hookworm infection, may cause pnemonia, N/V cramps and bloody diarrhea, blood loss is significant--anemia
Term
Strongylodes stercoralis
Definition
Heavy worm loads can cause pneumotits and eosinphilia, bloody diahrrea liver enlargement bowel obstruction and malabsorption
Term
Trichinella spiralis
Definition
Trchinosis, acquired by eating uncooked pork or bear meat
Term
Tissue Nematodes
Definition
causes chronic deforming disease
Term
Wuchereria bancrofti
Definition
elphantitis, tropical disease spread by mosquitos, causes massive swelling in extremitites
Term
Onchocera volvulus
Definition
river blindness, transmitted by black biting flies
Term
Loa Loa
Definition
the African eye worm, spread by bite of small flies
Term
Taenia saginata
Definition
Beef tapeworm, causes vague abdn pain
Term
Taenia solidum
Definition
Pork tapeworm, psychiatric disturbances
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