Giardia Intestinalis Flashcards Preview

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Flashcards in Giardia Intestinalis Deck (23):
1

subkingdom

protozoa

2

phylum

sarcomastigophora

3

order

diplomonadorida/ trichomonadorida

4

common name

none

5

hosts

dogs, cats, cattle, sheep, goats, llamas, wild and domestic animals

6

giardia exists in many different _____

assemblages

7

what assemblages do dogs have?

C and D

8

what assemblages do cats have?

A1 and F

9

is there a zoonosis associated with this disease?

yes

10

identification

trophozoites
tear drop shape
flagella
ovoid
4 nuclei

11

size of adult?

21 micrometers

12

how many flagella do they have?

8

13

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

14

how long can cysts survive for in the environment?

2-4 weeks

15

PPP

1-2 weeks

16

site of infection

small intestine

17

pathogenesis

mostly asymptomatic
trophozoites can cause acute focal inflammation
cause cause duodenal ulcerations
malabsorption common

18

clinical signs

often none, sometimes acute diarrhea

19

diagnosis

fecal smears - cyst in feces
trophozoites in fresh diarrhea
ELISA tests
PCR

20

treatment

no treatments are approved
sanitation or disinfection

21

what size are the cysts

12 micrometers

22

who has assemblage A or B?

human, dog, and cat

23

where do these parasites attach to feed?

microvilli of small bowel