click below
click below
Normal Size Small Size show me how
Parasites
Microbiology
Question | Answer |
---|---|
Intestinal tract protozoa | Entamoeba histolytica, Giardia lamblia, Coccidia (Cryptosporidium spp, Isospora belli) |
Urogenital protozoa | Trichomonas vaginalis |
Blood and Tissue protozoa | Plasmodium spp, Naegleria, Acanthamoeba spp, Toxoplasma gondii |
Nematodes | Enterobius, Ascaris, Strongyloides, Trichinella, hookeworms(Ancylostoma, Necator) |
Cestodes | Taenia, Echinococcus |
Malaria belong to what protozoan group? | Coccidia |
Has both Cyst & troph forms | E. histo, Giardia |
Cysticercosis | Taenia spp |
Chorioretinitis | Toxo gondii |
Most protozoa reproduce by (1), while yeasts reproduce by (2) and molds reproduce (3) | (1) fission (2) budding (3)asexually (conidia) or sexually |
Flagellate | Giardia, T vag |
Sexual & asexual repro cycles | Coccidia spp |
May cause malabsorption; unwashed veg/grown in manure; old man | giardia |
Most common intestinal helminth | Ascaris lumbricoides |
Classic = postcoital bleeding in female | T vaginalis |
Acute dz = flu-like s/s | Toxo |
Thermophilic | Naegleria |
Person-to-person, fomite, or aerosol | Enterobius vermicularis |
Wheezing | Ascaris, hookworms |
Adult worms lay up to 20,000 eggs/day | hookworms (ancylostoma; Necator) |
Diagnosis: direct exam of stool | Hookworms |
cutaneous larva migrans | Hookworms |
anemia | Hookworms |
immigrants from endemic areas | Strongyloides, Taenia |
freezing reduces transmission | Trichinella |
worms of hogs, beef, fish, dogs and cats | Taenia |
transform into new larval stage, can lead to overwhelming dissemination | Strongyloides |
T. vag inhabits: | female urethra & vagina (5-20%) & male urethra and prostate (2-10%) |
Coccidia: bloody diarrhea = (1); watery = (2) | (1) Large bowel involvement; (2) small bowel |
AIDS parasite | isospora belli |