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EPI Final PQ > MT4 - Mycobacteria General ++ (W) > Flashcards

MT4 - Mycobacteria General ++ (W) Flashcards

1
Q

Giant cells typically occur in tubercles

A

T

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2
Q

Mycobacterium tuberculosis can cause generalised tuberculosis in pigs.

A

T

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3
Q

Mycobacterium tuberculosis can cause tuberculosis in humans.

A

T

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4
Q

Facultative pathogenic mycobacteria can colonise only cold-blooded animals.

A

F

Cold-blooded, cattle and swine + other mammals

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5
Q

Mycobacteria are facultative intracellular bacteria.

A

T

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6
Q

Saprophytic and facultative pathogenic mycobacteria cannot colonise warm blooded animals.

A

F

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7
Q

Facultative pathogenic Mycobacteria can only reproduce in the environment.

A

F

Can be found in environment, plants, water and gut

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8
Q

Facultative pathogenic Mycobacteria can only colonize in warm-blooded animals.

A

F

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9
Q

There is no antigen connection between facultative and obligate pathogenic mycobacteria

A

F

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10
Q

Pigs are resistant against Mycobacterium tuberculosis.

A

F

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11
Q

Lympho-haematogenous spread of mycobacteria can be seen in the post primary phase of tuberculosis.

A

F

Found in phase 2 - “early generalization”

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12
Q

There is a close antigen relationship between mycobacteria

A

T

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13
Q

Mycobacterium bovis can cause tuberculosis only in ruminants

A

F

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14
Q

Mycobacterium bovis can cause generalized tuberculosis in goats

A

T

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15
Q

Tuberculin is an extract made from broth culture of mycobacteria

A

T

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16
Q

Tuberculin is the toxin produced by mycobacteria

A

F

it’s an antigen extract

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17
Q

Intra canalicular spread of mycobacteria can be seen in the post primary phase of
tuberculosis

A

T

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18
Q

Antibodies against mycobacteria are detected in the tuberculin test

A

F

Measure the immune response, measuring the reaction of skin

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19
Q

Facultative pathogenic mycobacteria can cause local lesions in pigs

A

T

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20
Q

Facultative pathogenic mycobacteria cannot cause tuberculosis

A

F

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21
Q

Mycobacteria are acid and alcohol fast bacteria

A

T

the bacteria is resistant to acid and alcohol

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22
Q

Mycobacterium tuberculosis can cause generalized tuberculosis in parrots

A

T

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23
Q

Fresh tuberculosis lesions in the lymph nodes are common the early generation

A

T

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24
Q

Mycobacteria can be stained with Ziehl-Neelsen staining

A

T

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25
Mycobacteria cannot be stained
F
26
Obligate pathogenic mycobacteria can occur and replicate in the environment
F | Replicates in the infected animal
27
All mycobacteria species are obligate pathogenic
F | Majority is, but some are saprophytic, facultative pathogens
28
The resistance of mycobacteria is low, they die in the environment soon
F | Certain components make the cell wall very resistan
29
Mycobacterium bovis can cause generalised tuberculosis in goats
T
30
Fresh tuberculosis lesions in the lymph nodes are common in the post primary phase
F
31
Mycobacteria are highly resistant thanks to lipids and waxes in the cell wall
T
32
Mycobacterium tuberculosis can cause tuberculosis in humans
T
33
Mycobacterium tuberculosis can cause generalized tuberculosis in pigs
T
34
Mycobacterium bovis can cause generalized tuberculosis in pigs
T
35
Pigs are resistant against Mycobacterium tuberculosis
F | They are highly susceptible
36
Mycobacterium bovis can cause generalized tuberculosis in badgers
T
37
Mycobacterium caprae can infect only goats
F
38
Tuberculosis lesions in the lymph node are common in the early generalization
T
39
The habitat of the obligate pathogenic Mycobacteria is the environment
F | habitat is the infected animal
40
Mycobacteria are obligate intracellular bacteria
F | Facultative intracellular bacteria
41
Waxes can be found in the cell wall of Mycobacteria
T
42
Only Mycobacterium tuberculosis can cause tuberculosis in humans
F
43
Neutrophil granulocytes can be typically found in tubercles
F | ymphocytes are found
44
Necrosis can be seen in the tubercles
T
45
The habitat of saprophytic, facultative pathogenic Mycobacteria is the environment.
T | Together with plants, water and gut
46
Saprophytic, facultative pathogenic Mycobacteria cannot colonize mammals
F
47
Mycobacteria have several shared antigens
T
48
The cell wall of mycobacteria contains mycolic acid
T
49
The tuberculin contains lipopolysaccharide (LPS) antigens
F
50
The cell wall of mycobacteria contains large amount of lipopolysaccharide
T
51
Mycobacteria can replicate only in animals
I think F T in A but if q obligate myco then T is correct If just mycobact in general though I think F bc saprophytic+facultative rep in the env
52
Mycobacterium tuberculosis causes tuberculosis in parrots
T
53
Mycobacterium tuberculosis causes generalized tuberculosis in badgers
F | M.bovis
54
Mycobacterium tuberculosis causes tuberculosis in poultry
F | Cage birds and parrots, NOT poultry
55
The cell wall of mycobacteria contains mycolic acid
T
56
The tuberculin contains lipopolysaccharide (LPS) antigens
F
57
All mycobacteria can replicate in the environment
F
58
Mycobacterium bovis can cause tuberculosis in wild living ruminants
T
59
Mycobacterium bovis can cause tuberculosis in wild boars
T
60
If the increase of the thickness of the skin fold in the tuberculin test is 1.9 mm the reaction is positive
F | Less than 2mm = negative
61
The skin intradermal tuberculin test is a Type IV. hypersensitivity reaction
T
62
Antigens of mycobacteria show a close relationship
T
63
Mycobacteria can survive in the environment only for a few days
F
64
Atypical mycobacteria can cause lesions in pigs
T
65
Mycobacteria caprae can infect cattle, other ruminants and swine.
T
66
Saprophytic, facultative pathogenic mycobacteria cannot cause tuberculosis
F | NOT COMMON
67
Only cattle maintain bovine tuberculosis
F
68
Obligate pathogenic Mycobacteria can only reproduce in the infected body
T
69
Facultative pathogenic mycobacteria can cause tuberculosis in fishes
T- file is unsure
70
Mycobacteria are not resistant, they can survive in the environment for maximum of two days
F-A | Due to the cell wall components, they survive long
71
Mycobacterium suis is the most frequent agent of tuberculosis of pigs
F | M.bovis and M.Caprae is most common
72
Facultative pathogenic mycobacteria can colonize the gut of pigs
T
73
Sometimes facultative pathogenic mycobacteria cause lesions in pig
T | Local lesions
74
Mycobacteria can survive in the environment
T
75
Mycobacteria cannot be cultured
F | takes too long
76
Waxes and lipids in the mycobacteria are virulence factors
T
77
Tuberculin test is an allergic test
T
78
Mycobacteria can be cultured, but their incubation time is long
T
79
Tuberculosis is diagnosed by detecting antibodies to M. bovis in the blood with ELISA
F | Used as complimentary test
80
The center of the tubercle is necrotized
T
81
The tubercle consists of histiocytes and foreign body giant cell.
T
82
The causative agents of tuberculosis are obligate pathogenic bacteria
T
83
Köster staining is a special staining for Mycobacteria
F | Ziehl-Neelsen
84
Mycobacteria are highly resistant
T | Due to the cell wall
85
Early generalization of mycobacteria occurs via lympho-hematogenous route
T
86
In dogs’ tuberculosis can be generalized
T
87
Late generalization can be characterized by lost resistance.
T
88
In the tubercle, coagulation necrosis is seen.
T
89
In the phase of early generalization Mycobacteria do not replicate in the lymph node.
F
90
Mycobacteria are a worldwide disease
T
91
Chronic tuberculosis causes changes in the lymph node
F | No fresh lesions in the lymph nodes
92
Mycobacteria can be demonstrated from the discharge of sick animals by staining.
T
93
Tuberculosis can be demonstrated earliest by ELISA
F
94
Tuberculosis can first be diagnosed by PCR
F
95
Tuberculosis can be diagnosed with certainty serology
F
96
Mycobacterium infection in pigs can be zoonotic
T
97
Mycobacterium spp. in swine can be caused by atypical mycobacteria
T
98
Mycobacteria in swine can be caused by M. bovis and produces localized lesions.
F | generalises
99
M. tuberculosis is a common mycobacterium infection of pig
F- A (not common maybe)
100
Mycobacteria are acid and alcohol fast bacteria
T
101
Sawdust bedding can predispose pigs to infection by facultative pathogenic mycobacteria.
T
102
Facultative pathogenic mycobacteria can cause generalized tuberculosis in pigs.
T-A | Localized lesions
103
The habitat of pathogenic mycobacteria is the soil
F
104
The habitat of facultative pathogenic mycobacteria is the soil
F
105
Only cattle are susceptible to Mycobacterium bovis
F
106
Some facultative pathogenic Mycobacteria can cause tuberculosis in cold blooded animals
T
107
The tuberculin contains antigens from mycobacteria
T
108
The agent of avian tuberculosis is an obligate pathogenic bacterium
T

EPI Final PQ (49 decks)

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