Parasitology I (Amebiasis, Balantidium, Leishmania, & Malaria) Flashcards
What parasite causes amebiasis?
Entamoeba histolytica
Which Entamoeba is pathogenic?
histolytica
Which entamoeba is nonpathogenic?
dispar
What is the infective stage of amebiasis?
cyst
What is the pathology stage of amebiasis?
trophozoite
How is amebiasis transmitted?
fecal contaminated food and water; anal-oral sex
Where does amebiasis act?
large intestine, liver, CNS
What are the GI symptoms of amebiasis?
bloody diarrhea, watery diarrhea, constipation and then diarrhea
What is the GI pathology of amebiasis?
ulcers
What are the liver symptoms of amebiasis?
pain in the right quadrant; takes months or years to develop into an abscess
Why are the liver symptoms a time bomb?
because 60% of people with liver involvement never remember having any GI problems
What common organelles are missing in Entamoeba histolytica?
mitochondira, endoplasmic reticulum (ER), golgi apparatus, microtubules
What is the main host of Balantidium Coli?
pig
What two stages does Balantidium coli have?
trophozoite and cyst
What is special about the trophozoite stage?
it has cilia
What is the infective stage of Leishmania?
from the Sandfly
What is the pathology stage of Leishmania?
the amastigote
Where does Leishmania affect the human body?
depends on the type
How is Leishmania transmitted?
bite of sandfly
How is Leishmania diagnosed?
dipstick, biopsy, and culture
How is Leishmania treated?
toxic drugs