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Protozoan groups
sorcodina (amebas), sporozoa, mastigophora (flagellates), ciliata
GI Infections
Entamoeba histolytica
causes dysentary and liver abscess; 4 nuclei
Entamoeba histolytica: trophozoite
vegetative form
Entamoeba histolytica: cysts
are non-motile
Giardia lambia
causes giardiasis; fecal/oral; cysts not killed by cholrination
Cryptosporidium parvum
ingestion of oocysts; NOT killed by Chlorination
Balantidium coli
Largest protozoa and ONLY ciliate
Protozoa: GU tract infections - Trichomonas vaginalis
flagellate; no cysts; STD
Protozoa: Systemic
Toxoplasma gondii
causes toxoplasmosis; most common parasite infection
Toxoplasma gondii: Host
Toxoplasma gondii: TMx
ingestion of cysts
TORCHES - cross the placenta
TOxoplasma, Rubella, Cytomegalovirus, HErpes (and HIV), Syphillis
Leishmania donovani
Black illness (hyper pigmented skin lesions)
Leishmania donovani: TMx
sand fly
Trypanosomes cruzi
flagellate; Chagas; cardiac failure
T. cruzi: TMx
reduviid bug
T. brucei
enlarged lymph nodes; CNS
T. brucei: TMx
Tse Tse fly
Trypanosomes can go through Gene Shuffling. Define.
varying their coat by moving different surface genes into transciptionally active sites
causes keratitis; no good, effective therapy
Plasmodium (vivax, ovale, falciparum, malariae)
causes malaria
Sporogony vs. Schizogony
Sexual cycle (sporogony) occurs in mosquitos and asexual cycle (schizogony) occurs in humans
Malaria attacks ____
ameba that passes through mucous membranes while swimming
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