Giardia Intestinalis Flashcards
subkingdom
protozoa
phylum
sarcomastigophora
order
diplomonadorida/ trichomonadorida
common name
none
hosts
dogs, cats, cattle, sheep, goats, llamas, wild and domestic animals
giardia exists in many different _____
assemblages
what assemblages do dogs have?
C and D
what assemblages do cats have?
A1 and F
is there a zoonosis associated with this disease?
yes
identification
trophozoites tear drop shape flagella ovoid 4 nuclei
size of adult?
21 micrometers
how many flagella do they have?
8
life cycle
trophozoites adhere to microvilli of small intestine multiply asexually several times trophozoite encysts cysts pass down the small intestine pass in the feces as the infective form
how long can cysts survive for in the environment?
2-4 weeks
PPP
1-2 weeks
site of infection
small intestine
pathogenesis
mostly asymptomatic
trophozoites can cause acute focal inflammation
cause cause duodenal ulcerations
malabsorption common
clinical signs
often none, sometimes acute diarrhea
diagnosis
fecal smears - cyst in feces
trophozoites in fresh diarrhea
ELISA tests
PCR
treatment
no treatments are approved
sanitation or disinfection
what size are the cysts
12 micrometers
who has assemblage A or B?
human, dog, and cat
where do these parasites attach to feed?
microvilli of small bowel
