Giardia Intestinalis Flashcards

1
Q

subkingdom

A

protozoa

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2
Q

phylum

A

sarcomastigophora

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3
Q

order

A

diplomonadorida/ trichomonadorida

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4
Q

common name

A

none

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5
Q

hosts

A

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

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6
Q

giardia exists in many different _____

A

assemblages

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7
Q

what assemblages do dogs have?

A

C and D

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8
Q

what assemblages do cats have?

A

A1 and F

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9
Q

is there a zoonosis associated with this disease?

A

yes

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10
Q

identification

A
trophozoites
tear drop shape
flagella 
ovoid
4 nuclei
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11
Q

size of adult?

A

21 micrometers

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12
Q

how many flagella do they have?

A

8

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13
Q

life cycle

A
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
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14
Q

how long can cysts survive for in the environment?

A

2-4 weeks

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15
Q

PPP

A

1-2 weeks

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16
Q

site of infection

A

small intestine

17
Q

pathogenesis

A

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

18
Q

clinical signs

A

often none, sometimes acute diarrhea

19
Q

diagnosis

A

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

20
Q

treatment

A

no treatments are approved

sanitation or disinfection

21
Q

what size are the cysts

A

12 micrometers

22
Q

who has assemblage A or B?

A

human, dog, and cat

23
Q

where do these parasites attach to feed?

A

microvilli of small bowel