MT4 - Bovine tuberculosis (R) Flashcards

1
Q

Mainly proliferative lesions can be seen in the late generalization phase of bovine tuberculosis

A

F

Mainly exudative

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2
Q

Bovine tuberculosis is sustained by infected animals

A

T

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3
Q

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

A

T

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4
Q

Infected cattle shed the agents of bovine tuberculosis in milk

A

T

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5
Q

Infected cattle shed the agents of bovine tuberculosis in tracheal discharge

A

T

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6
Q

Infection of cattle with Mycobacterium tuberculosis is frequently asymptomatic

A

T

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7
Q

The sensitivity of the intradermal tuberculin test is above 90% in cattle

A

T

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8
Q

If the tuberculin test is negative, it has to be repeated immediately

A

F

Only repeated after 60-90 days, some countries 42 days

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9
Q

The tuberculin test in cattle can be false negative if the animal is infected with facultative pathogenic mycobacteria

A

F

false positiv

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10
Q

The tuberculin test in cattle can be false negative if the animal is infected with Mycobacterium tuberculosis

A

F

false positive

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11
Q

The tuberculin test in cattle can be false negative if the animal is in the exhaust phase

A

T

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12
Q

The tuberculin has to be injected in the skin fold in the skin intra dermal test

A

T

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13
Q

The tuberculin test is used for the detection of infection of animals with mycobacteria.

A

T

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14
Q

The intradermal tuberculin test is negative if the increase of the thickness of the skin is 1.8 mm and there are no local lesions or signs

A

T

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15
Q

The intradermal tuberculin test is positive if the increase of the thickness of the skin is 3.6 mm and there are local lesions or signs

A

T

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16
Q

The intradermal tuberculin test is negative if the increase of the thickness of the skin is 3.6 mm and there is no local lesions or signs

A

F

Inconclusive

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17
Q

If the resistance of the animal is high, mainly exudative lesions of tuberculosis can be seen

A

F

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18
Q

In the case of bovine tuberculosis aerogenic infection is the most frequent way of infection

A

T

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19
Q

In the case of bovine tuberculosis always exudative lesions can be seen

A

F

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20
Q

Selection (test & slaughter) and generation shift methods can be used for eradication of bovine tuberculosis

A

T

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21
Q

Europe is free from bovine tuberculosis; bovine tuberculosis does not occur in Europe at all

A

F

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22
Q

Rifampicin is frequently used for the treatment of bovine tuberculosis

A

F

not allowed in farm animals

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23
Q

The thermal tuberculin test can be used in order to examine the organic reaction of bovine tuberculosis

A

T

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24
Q

The tuberculin test in cattle can be false negative if only short time (1-3 weeks) has passed since the infection

A

T

  • early infection stages
  • immunocompromise
  • improper test administration,
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25
Q

Positive reaction of the tuberculin test in cattle can be caused by infection with Mycobacterium tuberculosis

A

T

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26
Q

False positive reactions of the tuberculin test in cattle can be caused by infection with certain Corynebacterium species

A

T

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27
Q

Mycobacterium bovis is an agent of bovine tuberculosis

A

T

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28
Q

If the cellular immune reaction of cattle is weak, mainly exudative lesions of tuberculosis can be seen

A

T

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29
Q

Bovine tuberculosis cause mainly exudative lesions in calves below 1 month

A

F

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30
Q

Mycobacterium tuberculosis can cause tuberculosis in humans

A

T

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31
Q

In case of infection with mycobacterium bovis the reaction against bovine and avian tuberculin is about the same in cattle

A

F

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32
Q

Cough is a typical clinical sign of bovine pulmonary tuberculosis

A

T

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33
Q

Mycobacterium bovis and mycobacterium caprae belong to the mycobacterium tuberculosis complex

A

T

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34
Q

The incubation time of bovine tuberculosis is 1-2 weeks

A

F

Months, even years

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35
Q

Mycobacterium bovis can cause generalized tuberculosis in pigs

A

T

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36
Q

The skin intradermal tuberculin test has to be read 24 hours after injection

A

F

Reading after 72 hours

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37
Q

Dermatitis nodosa is caused by mycobacterium bovis

A

F

M.avium

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38
Q

Only aerosol infection occurs in the case of bovine tuberculosis

A

F

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39
Q

The skin intradermal tuberculin test can be repeated within a week if necessary

A

F

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40
Q

Mycobacterium bovis can cause tuberculosis in humans

A

T

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41
Q

The primary complex of bovine tuberculosis is generally seen in the gastrointestinal tract

A

F

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42
Q

False positive reactions of the tuberculin test in cattle can be caused by pre-allergy

A

F

Caused by parallergy Pre-allergy causes false negative

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43
Q

In the intradermal skin test for tuberculosis, other mycobacteria can cause false positive.

A

T

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44
Q

The skin intra-dermal tuberculin test is a type IV hyper-sensitivity test

A

T

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45
Q

Mycobacterium bovis and Mycobacterium caprae can cause bovine tuberculosis

A

T

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46
Q

The tuberculin skin test is positive if the skin thickness is 2mm and local signs such as severe oedema of the neck is present

A

T

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47
Q

In the exhaust phase of Tuberculosis, the tuberculin test can be false positive

A

F

Can cause false negative

48
Q

The primary complex in bovine tuberculosis is mainly in the respiratory tract

A

T

49
Q

The tuberculin test is inconclusive if the increase of the thickness of the skin fold is 3.2 mm and it is painful

A

T

inconclusive:fols is 1-4 mm thicker than avian reaction, no local reaction

50
Q

The tuberculin test is negative for 3 weeks after infection

A

T

51
Q

Cattle are vaccinated every year in order to prevent tuberculosis

A

F

Cannot prevent the disease

52
Q

The tuberculin reaction is positive if the increase of the thickness of the skin fold is 4.1 mm

A

T

53
Q

If the increase of thickness of the skin fold in the tuberculin test is 4.1 mm, the reaction is inconclusive

A

F

POSITIVE

54
Q

If the positive tuberculin reaction is caused by facultative pathogenic mycobacteria the positivity will disappear after a few months

A

T

55
Q

Cough is a frequent sign of bovine tuberculosis

A

T

56
Q

Intestinal tuberculosis has no clinical signs in cattle

A

F

57
Q

Badgers can infect cattle with Mycobacterium bovis.

A

T

58
Q

Vaccines are widely used to prevent bovine tuberculosis

A

F

59
Q

Mycobacterium bovis cannot cause tuberculosis in pigs

A

F

60
Q

Mycobacterium bovis can infect cage birds

A

T

61
Q

Parallergy lasts lifelong in the case of cattle

A

F

62
Q

Inhalation is the most frequent form of infection in the case of bovine tuberculosis

A

T

63
Q

Parallergy results in false negative reaction in the tuberculin test

A

F

False positive

64
Q

If the thickness of the skin is increased with 3.4 mm in the tuberculin test and local lesions are present, test is inconclusive

A

F

inconclusive:fols is 1-4 mm thicker and no local reaction

65
Q

Tuberculotic cattle are treated with antibiotics for at least three weeks

A

F

66
Q

The skin intradermal tuberculin test has to be read after 72 h

A

T

67
Q

If the intradermal tuberculin test is inconclusive, it has to be repeated within a week

A

F

68
Q

If the skin fold become 3 mm thicker in the skin intradermal tuberculin test and is painful, the test is positive

A

F

Positive: >4 mm or local reaction

69
Q

Mycobacterium avium subsp. avium can cause positive tuberculin reaction in cattle

A

T

70
Q

At bovine tuberculosis the resistance of the infected animals effects the clinical manifestation

A

T

71
Q

At most cases bovine tuberculosis has a rapid, acute progression

A

F

72
Q

Bovine tuberculosis shows clinical signs mainly under the age of 6 months

A

F

73
Q

The main pathogen causing bovine tuberculosis is Mycobacterium tuberculosis

A

F

74
Q

Bovine tuberculosis only affects the lungs

A

F

75
Q

Bovine tuberculosis is a zoonosis

A

T

76
Q

Tuberculosis causes generalized disease by organic infection in cattle

A

T

77
Q

Tuberculosis cannot infect cattle per os

A

F

78
Q

Tuberculosis in cattle occurs especially in young animals

A

F

79
Q

Cattle tuberculosis can be diagnosed by serological methods

A

F

80
Q

Cattle tuberculosis is always generalized

A

F

81
Q

Tuberculosis in cattle is prevented with frequent vaccinations

A

F

82
Q

Cattle are infected with M. bovis mainly per os and enteric tuberculosis is most frequent

A

F

83
Q

Cattle infected with M. bovis will carry the bacterium for a maximum of 1 year

A

F

84
Q

In intestinal tuberculosis, diarrhoea is the main clinical sign

A

T

85
Q

In the case of bovine tuberculosis foetuses are generally not infected

A

T

86
Q

Generation shift can be used for eradication of tuberculosis

A

T

87
Q

Vaccination of 6-month-old calves with BCG vaccine will result eradication of tuberculosis

A

F

88
Q

After infection with Mycobacterium bovis cattle remain lifelong carriers

A

T

89
Q

The primary complex in cattle is generally in the lungs and the mediastinal lymph nodes

A

T

90
Q

In cattle extrapulmonary tuberculosis does not occur

A

F

91
Q

Late generalization is characterized by productive processes

A

F

92
Q

Chronic tuberculosis affects organs together with lymph nodes

A

T

93
Q

The skin intradermal tuberculin test is negative if the thickness of the skin increased by 4.5 mm

A

F

positive

94
Q

Tuberculin test can detect about 50% of the infected animals

A

F

95
Q

The skin intradermal tuberculin test is highly sensitive in cattle

A

T

96
Q

The skin intradermal tuberculin test is negative if the thickness of the skin increased by 4.1 mm.

A

F

positive

97
Q

In case of positive tuberculin reactions in a herd, movement restriction has to be implemented

A

T

98
Q

The PPD-tuberculin (purified protein derivative) contains the antigenic abstract of the agent

A

T

99
Q

During the general tuberculin test we give the tuberculin SC or IV

A

F

thermal tuberculin test is administered SC or IV

100
Q

General tuberculin test is used to trigger a hypersensitivity reaction

A

T

101
Q

The general tuberculin test (name) is not really used now a days

A

T

102
Q

The tuberculin test can be false negative in cattle within 3 weeks after infection

A

T

103
Q

The intradermal tuberculin test can be: False positive in case of infection by Mycobacterium avium subsp. paratuberculosis

A

T

104
Q

The intradermal tuberculin test can be: False negative in case of anergy

A

T

immune system is exhausted

105
Q

The intradermal tuberculin test can be: False negative in case of pre-allergy

A

T

106
Q

The intradermal tuberculin test can be: False negative in case of older, demarcated nodule

A

T

107
Q

Tuberculin test is false negative in case of old, encapsulated lesions

A

T

108
Q

Tuberculin test is false negative in case of pre-infection

A

T

109
Q

At the end of the disease the probe/intradermal skin test can be negative

A

T

110
Q

In other types of tuberculosis infections the intradermal tuberculin can be positive

A

T

111
Q

Using the thermal tuberculin test, organic reactions can be increased

A

T

112
Q

In case of para-allergic reaction we carry out the comparative tuberculin test. In case of para-allergic reaction we eliminate the positive animals immediately

A

T

113
Q

In case of para-allergic reaction we perform a test-cut

A

F

114
Q

In addition to para-allergic test we can carry out a gamma interferon test

A

T

115
Q

M.tuberculosis can cause generalised tuberculosis in cattle

A

T

116
Q

False positive reaction of the tuberculine test can be caused by infectious with facultative pathogenic mycobacteria

A

T

117
Q

Facultative pathogenic mycobacteria can cause positive tuberculin test in cattle

A

T