coccidia 2 Flashcards
isospora beli
which animals can it infect?
non - it only can infect humans
moephology of it oocyst?
oval /elliptical
2 sporocyst-4 sporozoites
thin-smooth 2 layered cyst wall
how many sporocyst does it have?
2
how many sporozoites does it have ?
8
where the sporozoites are released ?
proximal of intestine (duodenal and jejunal epithelium)
how a person get infected with it?
from consumption of contaminated water or food of isospora parasit
where sporozoites transform into trophozoites?
on duodenal and jejunal epithelium
asexual reproduction
trophozoites multiply into schizont which will asexually reproduce into merozoites
what happen to th zygot excreted in feces?
within 3-4 days immutar oocyst transform into sporulated oocyst
what is the infective form?
sporulated oocyst
mode
mode of transmission?
feco-oral route
how is different from C. ?
it has same life cycle except oocyst mature in enviroment
does oocyst /differentiate mature in the body?
no
patheogenesis
1-marked villous atrophy
2- crypt hyperplasia in the small intestines
