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13 Cards in this Set

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Amoeba: Entamoeba Histolytica
Cyst ingested, sexual transmission and passed in feces
-intestinal parasite
Flagellates: Giardia
-Lamblia
-intestinalis
-duodenalis
-Intestinal parasite
food contamination with infective cysts, passed in stool with trophozoite
-classical to see steatorrhea
Flagellates: Trichomonas
hominis=
tenax=
vaginalis=
=intestinal
=oral
=urogenital
-trophozoite in secretions, no cysts (can't acquire outside)
Amoeba flagellates: Naegleria Fowleri
causes PAM: primary amoebic meninge encephalitis!!!
-Cyst in water, trophozoite is infectious!! enters through olfactory
dx: CSF
Amoeba Flagellates: Acanthamoeba culbertsoni
Balamuthia mandrilaris
enters through lower respiratory causes GAE, eye infections
-trophozoite is infectious
dx: cysts + trophozoites in tissue
Haemiflagellates
Trypanosoma gambiense=
trypanosoma rhodesiense=
"tsetse fly"
=west africa
=east africa
-sleeping sickness
dx: blood smear, CSF (trypomastigote)
Haemoflagellates
Trypanosoma cruzi
reduviid bug- America
-Chagas dz
"naughty bug"
dx: amastigote found in tissue biopsy
Haemoflagellates- Leishmania
tropica=
brasiliensis=
donovanii=
=dermal/cutaneous form
=mucocutaneous form
=visceral form (worst)
phlebotamine sandfly
dx: blood smear
Cilia: Balantidum coli
=intestinal parasite
(ONLY human ciliate)
cyst ingested
dx: feces (trophozoites can invade colon wall)
Sporozoa:
Cryptosporidium parvum/hominis
Cyclospora Cayetenensis=
Isospora belli=
=found in swimming pools
-oocyst ingested
-intestinal sporozoa
dx: feces
Tissue Sporozoa:
Plasmodium sporozoa
MALARIA
-mosquite definitive hose (sporogony)
-anopholis female mosquito
-sporozoite injected from ruptured cyst
dx: trophozoite in blood smear
Tissue Sporozoa:
Babesia sporozoa
-easily confused with malaria
-tick vector (ixodes)
Tissue Sporozoa:
Toxoplasma gondii
definitive host: cat family
-ingested, organ transplant, accidental inoculation
-transmission: cyst
dx: serological, blood, tissue, amniotic fluid, CSF serum