Balantidum coli “ciliate” Flashcards
Importance of B. coli
ZOONTONIC: only ciliate known to parasitize humans!!!
DH
Pigs, primates, horses, bovine, rodents and humans
IH
none
____ life cycle
direct
Trophozoite is motile or immobile?
mobile
Trophozoite characteristics
horseshoe shaped macronucleus, ciliated
direct smear will show
motile, ciliated trophozoites
Cysts are shed into ___
feces
in order to see cysts, use floatation with _____ ____
zinc sulfate
Infective stage for DH
cysts in feces
site of infection
large intestine
Route of infection
fecal to oral route
cysts in host feces are ingested> trophozoites excyst in ____> colonize in _____and encyst in ____> then cyst and trophozoite are excreted
SI; LI; LI
PPP
4-5 days
Clinical signs in pigs
usually asympt or, unlikely, diarrhea or colitis