-
E. hystolica
(entamoeba)
- MOT: contaminated food/water & hand to mouth, sexual
- Target: intestines
- Dx: cysts in feces
- Notes:
amoeba, WW
-
Giardia lamblia, intestinalis, duodenalis
- MOT: contaminated food/water
- Target:
intestines- Dx:
cysts in feces- Notes:
flagellates
-
B. coli
(balantidum coli)
- MOT: contaminated food/water
- Target: intestines
- Dx: cysts in feces
- Notes: ciliates; common cattle parasite
-
N. fowleri
(naegleria)
brain eating amoeba
- MOT: olfactory neuroepithelium
- Target: CSF & tissues
- Dx: trophozoites in CSF(flagellates) & tissues
- Notes: amoeboflagellates; more acute cause syphilitis
-
T. gambiense
(trypanosomiasis)
- MOT: tsetse fly, West Africa
- Target: lymph, blood, tissue, CSF
- Dx: amastigote (cells/tissues) & trypomastigote (blood)
- Notes: Sleeping Sickness
-
T. rhodesiense
(trypanosomiasis)
- MOT: tsetse fly, East Africa
- Target:
lymph, blood, tissue, CSF- Dx:
amastigote (cells/tissues) & trypomastigote (blood)- Notes:
Sleeping Sickness
-
T. cruzi
(trypanosmiasis)
- MOT: reduviid bug, Americas (kissing bug)
- Target: lymph, blood, tissue, CSF
- Dx: amastigote (cells/tissues) & trypomastigote (blood)
- Notes: sleeping sickness
-
L. tropica
(leishmania)
- MOT: phlebotomine sandfly
- Target: dermal/cutaneous
- Notes: skin lesions; self limiting; mild form
-
L. brasiliense
(leishmania)
- MOT: phlebotomine sandfly
- Target: mucocutaneous/nose
- Notes: intermediate virulence
-
L. donovanii
(leishmania)
- MOT: phlebotomine sandfly
- Target:
visceral
-
Plasmodium spp
- MOT: insect bite; v-mosquito
- Target: blood & tissue
- Notes: malaria
-
Babesia spp.
- MOT: insect bite; v - tick (same as lime disease)
- Target: blood
- Notes: babesiosis mimics malaria
-
Toxoplasma gondii
- MOT: ingested (meat), transplant, transfusion, han/nail, inhale, transplacental
- Target: tissue
- Notes: toxoplasmosis
-
S. mansoni
(schistosomiasis)
- MOT: direct skin penetration by cecariae
- Target: intestinal blood vessels
- Dx: blood fluke feces
- Notes: itch & intense eosinophilic rxns
-
S. japonicum
(schistosomiasis)
- MOT: direct skin penetration by cecariae
- Target: intestinal blood vessels
- Dx: blood fluke feces
- Notes: itch & intense eosinophilic rxns
-
S. hematobium
(schistosomiasis)
- MOT: direct skin penetration by cecariae
- Target: intestinal blood vessels
- Dx: blood fluke urine
- Notes: itch & intense eosinophilic rxns
-
D. latum
diphylobothrium
- MOT: raw fish ingestion
- Target: intestine
- Dx: eggs in feces
- Notes: B12 deficiency --> megaloblastic, pernicous anemia
-
T. saginata
taeniasis
- MOT: improperly cooked beef
- Target: intestinal disease (worm ingested), cyst in tissues (egg ingested)
- Dx: eggs/proglottids in feces
- Notes: cestode - tapeworm
-
T. solium
taeniasis
- MOT: improperly cooked pork
- Target: intestinal disease (worm ingested), cyst in tissues (egg ingested)
- Dx: eggs/proglottids in feces
- Notes: cestode - tapeworm
-
E. granulosus & E. multiocularis
echinococcus
- MOT: ingested
- Target: small intestine
- Dx: eggs in feces
- Notes: dog tapeworm; Hyatid disease (cyst)
-
A. lumbricoides
ascaris
- MOT: ingested
- Target: adult worm intestine
- Dx: eggs in feces
- Notes: round worm
-
N. americanus
necator
- MOT: larvae in soil; enter skin in foot, cause itch
- Target: adult worm intestine
- Dx: eggs in feces
- Notes: hook worm can cause anemia if it enters blood
-
E. vermicularis
enterobius
- MOT: perianal itching - hand to mouth transmission
- Target: adults in lumen of cecum
- Dx: scotch tape on anus to see eggs
- Notes: pin worm, young children, contagious, small sticky eggs
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