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Epidemiology - MIDTERM 4 PQS > PQS - Bovine tuberculosis✅ > Flashcards

PQS - Bovine tuberculosis✅ 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

Or causes local lesions

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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

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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

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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

Treatment in farm animals is not allowed

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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

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25
Positive reaction of the tuberculin test in cattle can be caused by infection with Mycobacterium tuberculosis
T
26
False positive reactions of the tuberculin test in cattle can be caused by infection with certain Corynebacterium species
T
27
Mycobacterium bovis is an agent of bovine tuberculosis
T
28
If the cellular immune reaction of cattle is weak, mainly exudative lesions of tuberculosis can be seen
T
29
Bovine tuberculosis cause mainly exudative lesions in calves below 1 month
F
30
Mycobacterium tuberculosis can cause tuberculosis in humans
T
31
In case of infection with mycobacterium bovis the reaction against bovine and avian tuberculin is about the same in cattle
F
32
Cough is a typical clinical sign of bovine pulmonary tuberculosis
T
33
Mycobacterium bovis and mycobacterium caprae belong to the mycobacterium tuberculosis complex
T
34
The incubation time of bovine tuberculosis is 1-2 weeks
F **Months, even years**
35
Mycobacterium bovis can cause generalized tuberculosis in pigs
T
36
The skin intradermal tuberculin test has to be read 24 hours after injection
F **Reading after 72 hours**
37
Dermatitis nodosa is caused by mycobacterium bovis
F **Caused by M.avium**
38
Only aerosol infection occurs in the case of bovine tuberculosis
F
39
The skin intradermal tuberculin test can be repeated within a week if necessary
F
40
Mycobacterium bovis can cause tuberculosis in humans
T
41
The primary complex of bovine tuberculosis is generally seen in the gastrointestinal tract
F
42
False positive reactions of the tuberculin test in cattle can be caused by pre-allergy
F **Caused by parallergy** **Pre-allergy causes false negative**
43
In the intradermal skin test for tuberculosis, other mycobacteria can cause false positive.
T
44
The skin intra-dermal tuberculin test is a type IV hyper-sensitivity test
T
45
Mycobacterium bovis and Mycobacterium caprae can cause bovine tuberculosis
T
46
The tuberculin skin test is positive if the skin thickness is 2mm and local signs such as severe oedema of the neck is present
T
47
In the exhaust phase of Tuberculosis, the tuberculin test can be false positive
F **Can cause false negative**
48
The primary complex in bovine tuberculosis is mainly in the respiratory tract
T
49
The tuberculin test is inconclusive if the increase of the thickness of the skin fold is 3.2 mm and it is painful
F
50
The tuberculin test is negative for 3 weeks after infection
T
51
Cattle are vaccinated every year in order to prevent tuberculosis
F **Cannot prevent the disease**
52
The tuberculin reaction is positive if the increase of the thickness of the skin fold is 4.1 mm
T
53
If the increase of thickness of the skin fold in the tuberculin test is 4.1 mm, the reaction is inconclusive
F **= Positive**
54
If the positive tuberculin reaction is caused by facultative pathogenic mycobacteria the positivity will disappear after a few months
T
55
Cough is a frequent sign of bovine tuberculosis
T
56
Intestinal tuberculosis has no clinical signs in cattle
F
57
Badgers can infect cattle with Mycobacterium bovis.
T
58
Vaccines are widely used to prevent bovine tuberculosis
F
59
Mycobacterium bovis cannot cause tuberculosis in pigs
F
60
Mycobacterium bovis can infect cage birds
T
61
Parallergy lasts lifelong in the case of cattle
F
62
Inhalation is the most frequent form of infection in the case of bovine tuberculosis
T
63
Parallergy results in false negative reaction in the tuberculin test
F **False positive**
64
If the thickness of the skin is increased with 3.4 mm in the tuberculin test and local lesions are present, test is inconclusive
F
65
Tuberculotic cattle are treated with antibiotics for at least three weeks
F
66
The skin intradermal tuberculin test has to be read after 72 h
T
67
If the intradermal tuberculin test is inconclusive, it has to be repeated within a week
F
68
If the skin fold become 3 mm thicker in the skin intradermal tuberculin test and is painful, the test is positive
T
69
Mycobacterium avium subsp. avium can cause positive tuberculin reaction in cattle
T
70
At bovine tuberculosis the resistance of the infected animals effects the clinical manifestation
T
71
At most cases bovine tuberculosis has a rapid, acute progression
F
72
Bovine tuberculosis shows clinical signs mainly under the age of 6 months
F
73
The main pathogen causing bovine tuberculosis is Mycobacterium tuberculosis
F
74
Bovine tuberculosis only affects the lungs
F
75
Bovine tuberculosis is a zoonosis
T
76
Tuberculosis causes generalized disease by organic infection in cattle
T
77
Tuberculosis **cannot** infect cattle per os
F
78
Tuberculosis in cattle occurs especially in young animals
F
79
Cattle tuberculosis can be diagnosed by serological methods
F
80
Cattle tuberculosis is always generalized
F
81
Tuberculosis in cattle is prevented with frequent vaccinations
F
82
Cattle are infected with M. bovis mainly per os and enteric tuberculosis is most frequent
F
83
Cattle infected with M. bovis will carry the bacterium for a maximum of 1 year
F
84
In intestinal tuberculosis, diarrhoea is the main clinical sign
T
85
In the case of bovine tuberculosis foetuses are generally not infected
T
86
Generation shift can be used for eradication of tuberculosis
T **Widely used**
87
Vaccination of 6-month-old calves with BCG vaccine will result eradication of tuberculosis
F
88
After infection with Mycobacterium bovis cattle remain lifelong carriers
T
89
The primary complex in cattle is generally in the lungs and the mediastinal lymph nodes
T
90
In cattle extrapulmonary tuberculosis does not occur
F
91
Late generalization is characterized by productive processes
F
92
Chronic tuberculosis affects organs together with lymph nodes
T
93
The skin intradermal tuberculin test is negative if the thickness of the skin increased by 4.5 mm
F
94
Tuberculin test can detect about 50% of the infected animals
F
95
The skin intradermal tuberculin test is highly sensitive in cattle
T
96
The skin intradermal tuberculin test is negative if the thickness of the skin increased by 4.1 mm.
F
97
In case of positive tuberculin reactions in a herd, movement restriction has to be implemented
T
98
The PPD-tuberculin (purified protein derivative) contains the antigenic abstract of the agent
T
99
During the general tuberculin test we give the tuberculin SC or IV
F **The thermal tuberculin test is administered SC or IV**
100
General tuberculin test is used to trigger a hypersensitivity reaction
T
101
The general tuberculin test (name) is not really used now a days
T ???
102
The tuberculin test can be false negative in cattle within 3 weeks after infection
T
103
The intradermal tuberculin test can be: False positive in case of infection by Mycobacterium avium subsp. paratuberculosis
T
104
The intradermal tuberculin test can be: False negative in case of anergy
T **= the immune system is exhausted**
105
The intradermal tuberculin test can be: False negative in case of pre-allergy
T
106
The intradermal tuberculin test can be: False negative in case of older, demarcated nodule
T
107
Tuberculin test is false negative in case of old, encapsulated lesions
T
108
Tuberculin test is false negative in case of pre-infection
T
109
At the end of the disease the probe/intradermal skin test can be negative
T
110
In other types of tuberculosis infections the intradermal tuberculin can be positive
T
111
Using the thermal tuberculin test, organic reactions can be increased
T
112
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
T
113
In case of para-allergic reaction we perform a test-cut
F
114
In addition to para-allergic test we can carry out a gamma interferon test
T

Epidemiology - MIDTERM 4 PQS (31 decks)

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