MT4 - Bovine tuberculosis (R) Flashcards
Mainly proliferative lesions can be seen in the late generalization phase of bovine tuberculosis
F
Mainly exudative
Bovine tuberculosis is sustained by infected animals
T
Fresh tuberculosis lesions in the lymph nodes are common in the early generalization
T
Infected cattle shed the agents of bovine tuberculosis in milk
T
Infected cattle shed the agents of bovine tuberculosis in tracheal discharge
T
Infection of cattle with Mycobacterium tuberculosis is frequently asymptomatic
T
The sensitivity of the intradermal tuberculin test is above 90% in cattle
T
If the tuberculin test is negative, it has to be repeated immediately
F
Only repeated after 60-90 days, some countries 42 days
The tuberculin test in cattle can be false negative if the animal is infected with facultative pathogenic mycobacteria
F
The tuberculin test in cattle can be false negative if the animal is infected with Mycobacterium tuberculosis
F
The tuberculin test in cattle can be false negative if the animal is in the exhaust phase
T
The tuberculin has to be injected in the skin fold in the skin intra dermal test
T
The tuberculin test is used for the detection of infection of animals with mycobacteria.
T
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
T
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
T
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
F
Inconclusive
If the resistance of the animal is high, mainly exudative lesions of tuberculosis can be seen
F
In the case of bovine tuberculosis aerogenic infection is the most frequent way of infection
T
In the case of bovine tuberculosis always exudative lesions can be seen
F
Selection (test & slaughter) and generation shift methods can be used for eradication of bovine tuberculosis
T
Europe is free from bovine tuberculosis; bovine tuberculosis does not occur in Europe at all
F
Rifampicin is frequently used for the treatment of bovine tuberculosis
F
not allowed in farm animals
The thermal tuberculin test can be used in order to examine the organic reaction of bovine tuberculosis
T
The tuberculin test in cattle can be false negative if only short time (1-3 weeks) has passed since the infection
T
Positive reaction of the tuberculin test in cattle can be caused by infection with Mycobacterium tuberculosis
T
False positive reactions of the tuberculin test in cattle can be caused by infection with certain Corynebacterium species
T
Mycobacterium bovis is an agent of bovine tuberculosis
T
If the cellular immune reaction of cattle is weak, mainly exudative lesions of tuberculosis can be seen
T
Bovine tuberculosis cause mainly exudative lesions in calves below 1 month
F
Mycobacterium tuberculosis can cause tuberculosis in humans
T
In case of infection with mycobacterium bovis the reaction against bovine and avian tuberculin is about the same in cattle
F
Cough is a typical clinical sign of bovine pulmonary tuberculosis
T
Mycobacterium bovis and mycobacterium caprae belong to the mycobacterium tuberculosis complex
T
The incubation time of bovine tuberculosis is 1-2 weeks
F
Months, even years
Mycobacterium bovis can cause generalized tuberculosis in pigs
T
The skin intradermal tuberculin test has to be read 24 hours after injection
F
Reading after 72 hours
Dermatitis nodosa is caused by mycobacterium bovis
F
M.avium
Only aerosol infection occurs in the case of bovine tuberculosis
F
The skin intradermal tuberculin test can be repeated within a week if necessary
F
Mycobacterium bovis can cause tuberculosis in humans
T
The primary complex of bovine tuberculosis is generally seen in the gastrointestinal tract
F
False positive reactions of the tuberculin test in cattle can be caused by pre-allergy
F
Caused by parallergy Pre-allergy causes false negative
In the intradermal skin test for tuberculosis, other mycobacteria can cause false positive.
T
The skin intra-dermal tuberculin test is a type IV hyper-sensitivity test
T
Mycobacterium bovis and Mycobacterium caprae can cause bovine tuberculosis
T
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
In the exhaust phase of Tuberculosis, the tuberculin test can be false positive
F
Can cause false negative
The primary complex in bovine tuberculosis is mainly in the respiratory tract
T
The tuberculin test is inconclusive if the increase of the thickness of the skin fold is 3.2 mm and it is painful
F
The tuberculin test is negative for 3 weeks after infection
T
Cattle are vaccinated every year in order to prevent tuberculosis
F
Cannot prevent the disease
The tuberculin reaction is positive if the increase of the thickness of the skin fold is 4.1 mm
T
If the increase of thickness of the skin fold in the tuberculin test is 4.1 mm, the reaction is inconclusive
F
POSITIVE
If the positive tuberculin reaction is caused by facultative pathogenic mycobacteria the positivity will disappear after a few months
T
Cough is a frequent sign of bovine tuberculosis
T
Intestinal tuberculosis has no clinical signs in cattle
F
Badgers can infect cattle with Mycobacterium bovis.
T
Vaccines are widely used to prevent bovine tuberculosis
F
Mycobacterium bovis cannot cause tuberculosis in pigs
F
Mycobacterium bovis can infect cage birds
T
Parallergy lasts lifelong in the case of cattle
F
Inhalation is the most frequent form of infection in the case of bovine tuberculosis
T
Parallergy results in false negative reaction in the tuberculin test
F
False positive
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
Tuberculotic cattle are treated with antibiotics for at least three weeks
F
The skin intradermal tuberculin test has to be read after 72 h
T
If the intradermal tuberculin test is inconclusive, it has to be repeated within a week
F
If the skin fold become 3 mm thicker in the skin intradermal tuberculin test and is painful, the test is positive
T
Mycobacterium avium subsp. avium can cause positive tuberculin reaction in cattle
T
At bovine tuberculosis the resistance of the infected animals effects the clinical manifestation
T
At most cases bovine tuberculosis has a rapid, acute progression
F
Bovine tuberculosis shows clinical signs mainly under the age of 6 months
F
The main pathogen causing bovine tuberculosis is Mycobacterium tuberculosis
F
Bovine tuberculosis only affects the lungs
F
Bovine tuberculosis is a zoonosis
T
Tuberculosis causes generalized disease by organic infection in cattle
T
Tuberculosis cannot infect cattle per os
F
Tuberculosis in cattle occurs especially in young animals
F
Cattle tuberculosis can be diagnosed by serological methods
F
Cattle tuberculosis is always generalized
F
Tuberculosis in cattle is prevented with frequent vaccinations
F
Cattle are infected with M. bovis mainly per os and enteric tuberculosis is most frequent
F
Cattle infected with M. bovis will carry the bacterium for a maximum of 1 year
F
In intestinal tuberculosis, diarrhoea is the main clinical sign
T
In the case of bovine tuberculosis foetuses are generally not infected
T
Generation shift can be used for eradication of tuberculosis
T
Vaccination of 6-month-old calves with BCG vaccine will result eradication of tuberculosis
F
After infection with Mycobacterium bovis cattle remain lifelong carriers
T
The primary complex in cattle is generally in the lungs and the mediastinal lymph nodes
T
In cattle extrapulmonary tuberculosis does not occur
F
Late generalization is characterized by productive processes
F
Chronic tuberculosis affects organs together with lymph nodes
F-A
The skin intradermal tuberculin test is negative if the thickness of the skin increased by 4.5 mm
F
Tuberculin test can detect about 50% of the infected animals
F
The skin intradermal tuberculin test is highly sensitive in cattle
T
The skin intradermal tuberculin test is negative if the thickness of the skin increased by 4.1 mm.
F
In case of positive tuberculin reactions in a herd, movement restriction has to be implemented
T
The PPD-tuberculin (purified protein derivative) contains the antigenic abstract of the agent
T
During the general tuberculin test we give the tuberculin SC or IV
T-A
thermal tuberculin test is administered SC or IV
General tuberculin test is used to trigger a hypersensitivity reaction
T
The general tuberculin test (name) is not really used now a days
T
The tuberculin test can be false negative in cattle within 3 weeks after infection
T
The intradermal tuberculin test can be: False positive in case of infection by Mycobacterium avium subsp. paratuberculosis
T
The intradermal tuberculin test can be: False negative in case of anergy
T
immune system is exhausted
The intradermal tuberculin test can be: False negative in case of pre-allergy
T
The intradermal tuberculin test can be: False negative in case of older, demarcated nodule
T
Tuberculin test is false negative in case of old, encapsulated lesions
T
Tuberculin test is false negative in case of pre-infection
T-A
presuming they mean pre-allergy, badly worded
At the end of the disease the probe/intradermal skin test can be negative
T
In other types of tuberculosis infections the intradermal tuberculin can be positive
T
Using the thermal tuberculin test, organic reactions can be increased
T
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
I think F
But A has it as T
In case of para-allergic reaction we perform a test-cut
F
In addition to para-allergic test we can carry out a gamma interferon test
T
