Mycobacteria Flashcards

1
Q

respiration

A

aerobic

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2
Q

spore

A

non spore forming

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3
Q

shape

A

rod

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4
Q

acid fast bacilli?

A

yes

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5
Q

ZN staining

A

positive

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6
Q

pathogenesis

A

saprophytes
opportunistic invaders
obligate pathogens
intracellular bacteria (phagocytized by M2 macrophage)

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7
Q

resistance to enviornmental conditions

A

due to bacterial lipid rich wall

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8
Q

zoonotic disease?

A

yes

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9
Q

acid fast?

A

yes

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10
Q

ZN staining

A

positive

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11
Q

shape

A

rods

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12
Q

growth media

A

egg enriched media

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13
Q

respiration

A

aerobic

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14
Q

motility

A

non motile

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15
Q

spore

A

non spore forming

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16
Q

carotenoid pigmetns

A

some mycobacteria produce them

17
Q

major diseases

A

tuberculosis
Johne’s disease
feline leprosy

18
Q

tuberculin test

A

cellular immune response
type IV delayed hypersensitivity

19
Q

M tuberculosis colonies

A

rough
buff
difficult to break apart
no essential growth supplement

20
Q

m bovis colonies

A

cream colored
raised with central roughness
break apart easily
no essential growth supplement

21
Q

m avium complex colonies

A

sticky
off white
break apart easily
no essential growth supplement

22
Q

m avium subspecies paratuberculosis colonies

A

small
hemispherical
some pigmented
essential growth supplement – mycobactin

23
Q

clinical infections

A

tuberculosis in avian and mammals
paratuberculosis in ruminants
feline leprosy
skin tuberculosis and bovine farcy
granulomatous lesions – caseous appearance inside granuloma