Bovine tuberculosis Flashcards
Mainly proliferative lesions can be seen in the late generalization phase of bovine tuberculosis
False
Bovine tuberculosis is sustained by infected animals
True
Fresh tuberculosis lesions in the lymph nodes are common in the early generalization
True
Infected cattle shed the agents of bovine tuberculosis in milk
True
Infected cattle shed the agents of bovine tuberculosis in tracheal discharge
True
Infection of cattle with Mycobacterium tuberculosis is frequently asymptomatic
True
The sensitivity of the intradermal tuberculin test is above 90% in cattle
True
If the tuberculin test is negative, it has to be repeated immediately
False
The tuberculin test in cattle can be false negative if the animal is infected with
facultative pathogenic mycobacteria
False
The tuberculin test in cattle can be false negative if the animal is infected with
Mycobacterium tuberculosis
False
The tuberculin test in cattle can be false negative if the animal is in the exhaust phase
True
The tuberculin has to be injected in the skin fold in the skin intra dermal test
True
The tuberculin test is used for the detection of infection of animals with mycobacteria
True
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
True
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
True
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
False
If the resistance of the animal is high, mainly exudative lesions of tuberculosis can be seen
False
In the case of bovine tuberculosis aerogenic infection is the most frequent way of infection
True
In the case of bovine tuberculosis always exudative lesions can be seen
False
Selection (test & slaughter) and generation shift methods can be used for eradication of
bovine tuberculosis
True
Europe is free from bovine tuberculosis; bovine tuberculosis does not occur in Europe at
all
False
Rifampicin is frequently used for the treatment of bovine tuberculosis
False
The thermal tuberculin test can be used in order to examine the organic reaction of
bovine tuberculosis
True
The tuberculin test in cattle can be false negative if only short time (1-3 weeks) has
passed since the infection
True
Positive reaction of the tuberculin test in cattle can be caused by infection with
Mycobacterium tuberculosis
True
False positive reactions of the tuberculin test in cattle can be caused by infection with certain Corynebacterium species
True
Mycobacterium bovis is an agent of bovine tuberculosis
True
If the cellular immune reaction of cattle is weak, mainly exudative lesions of tuberculosis can be seen
True
Bovine tuberculosis cause mainly exudative lesions in calves below 1 month
False
Mycobacterium tuberculosis can cause tuberculosis in humans
True
In case of infection with mycobacterium bovis the reaction against bovine and avian tuberculin is about the same in cattle
False
Cough is a typical clinical sign of bovine pulmonary tuberculosis
True
Mycobacterium bovis and mycobacterium caprae belong to the mycobacterium tuberculosis complex
True
The incubation time of bovine tuberculosis is 1-2 weeks
False
Mycobacterium bovis can cause generalized tuberculosis in pigs
True
The skin intradermal tuberculin test has to be read 24 hours after injection
False
Dermatitis nodosa is caused by mycobacterium bovis
False
Only aerosol infection occurs in the case of bovine tuberculosis
False
The skin intradermal tuberculin test can be repeated within a week if necessary
False
Mycobacterium bovis can cause tuberculosis in humans
True
The primary complex of bovine tuberculosis is generally seen in the gastrointestinal tract
False
False positive reactions of the tuberculin test in cattle can be caused by pre-allergy
False
In the intradermal skin test for tuberculosis, other mycobacteria can cause false positive
True
The skin intra-dermal tuberculin test is a type IV hyper-sensitivity test
True
Mycobacterium bovis and Mycobacterium caprae can cause bovine tuberculosis
True
The tuberculin skin test is positive if the skin thickness is 2mm and local signs such as severe oedema of the neck is present
True
In the exhaust phase of Tuberculosis, the tuberculin test can be false positive
False
The primary complex in bovine tuberculosis is mainly in the respiratory tract
True
The tuberculin test is inconclusive if the increase of the thickness of the skin fold is 3.2 mm and it is painful
False
The tuberculin test is negative for 3 weeks after infection
True
Cattle are vaccinated every year in order to prevent tuberculosis
False
The tuberculin reaction is positive if the increase of the thickness of the skin fold is 4.1 mm
True
If the increase of thickness of the skin fold in the tuberculin test is 4.1 mm, the reaction is inconclusive
False
If the positive tuberculin reaction is caused by facultative pathogenic mycobacteria the
positivity will disappear after a few months
True
Cough is a frequent sign of bovine tuberculosis
True
Intestinal tuberculosis has no clinical signs in cattle
False
Badgers can infect cattle with Mycobacterium bovis
True
Vaccines are widely used to prevent bovine tuberculosis
False
Mycobacterium bovis cannot cause tuberculosis in pigs
False
Mycobacterium bovis can infect cage birds
True
Parallergy lasts lifelong in the case of cattle
False
Inhalation is the most frequent form of infection in the case of bovine tuberculosis
True
Parallergy results in false negative reaction in the tuberculin test
False
If the thickness of the skin is increased with 3.4 mm in the tuberculin test and local
lesions are present, test is inconclusive
False
Tuberculotic cattle are treated with antibiotics for at least three weeks
False
The skin intradermal tuberculin test has to be read after 72 h
True
If the intradermal tuberculin test is inconclusive, it has to be repeated within a week
False
If the skin fold become 3 mm thicker in the skin intradermal tuberculin test and is painful, the test is positive
True
Mycobacterium avium subsp. avium can cause positive tuberculin reaction in cattle
True
At bovine tuberculosis the resistance of the infected animals effects the clinical
manifestation
True
At most cases bovine tuberculosis has a rapid, acute progression
False
Bovine tuberculosis shows clinical signs mainly under the age of 6 months
False
The main pathogen causing bovine tuberculosis is Mycobacterium tuberculosis
False
Bovine tuberculosis only affects the lungs
False
Bovine tuberculosis is a zoonosis
True
Tuberculosis causes generalized disease by organic infection in cattle
True
Tuberculosis cannot infect cattle per os
False
Tuberculosis in cattle occurs especially in young animals
False
Cattle tuberculosis can be diagnosed by serological methods
False
Cattle tuberculosis is always generalized
False
Tuberculosis in cattle is prevented with frequent vaccinations
False
Cattle are infected with M. bovis mainly per os and enteric tuberculosis is most frequent
False
Cattle infected with M. bovis will carry the bacterium for a maximum of 1 year
False
In intestinal tuberculosis, diarrhoea is the main clinical sign
True
In the case of bovine tuberculosis foetuses are generally not infected
True
Generation shift can be used for eradication of tuberculosis
True
Vaccination of 6-month-old calves with BCG vaccine will result eradication of tuberculosis
False
After infection with Mycobacterium bovis cattle remain lifelong carriers
True
The primary complex in cattle is generally in the lungs and the mediastinal lymph nodes
True
In cattle extrapulmonary tuberculosis does not occur
False
Late generalization is characterized by productive processes
False
Chronic tuberculosis affects organs together with lymph nodes
True
The skin intradermal tuberculin test is negative if the thickness of the skin increased by 4.5 mm
False
Tuberculin test can detect about 50% of the infected animals
False
The skin intradermal tuberculin test is highly sensitive in cattle
True
The skin intradermal tuberculin test is negative if the thickness of the skin increased by 4.1 mm
False
In case of positive tuberculin reactions in a herd, movement restriction has to be implemented
True
The PPD-tuberculin (purified protein derivative) contains the antigenic abstract of the
agent
True
During the general tuberculin test we give the tuberculin SC or IV
False
General tuberculin test is used to trigger a hypersensitivity reaction
True
The general tuberculin test (name) is not really used now a days
True
The tuberculin test can be false negative in cattle within 3 weeks after infection
True
The intradermal tuberculin test can be: False positive in case of infection by
Mycobacterium avium subsp. paratuberculosis
True
The intradermal tuberculin test can be: False negative in case of anergy
True
The intradermal tuberculin test can be: False negative in case of pre-allergy
True
The intradermal tuberculin test can be: False negative in case of older, demarcated
nodule
True
Tuberculin test is false negative in case of old, encapsulated lesions
True
Tuberculin test is false negative in case of pre-infection
True
At the end of the disease the probe/intradermal skin test can be negative
True
In other types of tuberculosis infections the intradermal tuberculin can be positive
True
Using the thermal tuberculin test, organic reactions can be increased
True
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
True
In case of para-allergic reaction we perform a test-cut
False
In addition to para-allergic test we can carry out a gamma interferon test
True
