Mycobacteria Flashcards
Giant cells typically occur in tubercles
True
Mycobacterium tuberculosis can cause generalised tuberculosis in pigs
True
Mycobacterium tuberculosis can cause tuberculosis in humans
True
Facultative pathogenic mycobacteria can colonise only cold-blooded animals
False
Mycobacteria are facultative intracellular bacteria
True
Saprophytic and facultative pathogenic mycobacteria cannot colonise warm blooded
animals
False
Facultative pathogenic Mycobacteria can only reproduce in the environment
False
Facultative pathogenic Mycobacteria can only colonize in warm-blooded animals
False
There is no antigen connection between facultative and obligate pathogenic
mycobacteria
False
Pigs are resistant against Mycobacterium tuberculosis
False
Lympho-haematogenous spread of mycobacteria can be seen in the post primary phase of tuberculosis
False
There is a close antigen relationship between mycobacteria
True
Mycobacterium bovis can cause tuberculosis only in ruminants
False
Mycobacterium bovis can cause generalized tuberculosis in goats
True
Tuberculin is an extract made from broth culture of mycobacteria
True
The tuberculin contains antigens from mycobacteria
True
Tuberculin is the toxin produced by mycobacteria
False
Intra canalicular spread of mycobacteria can be seen in the post primary phase of
tuberculosis
True
Antibodies against mycobacteria are detected in the tuberculin test
False
Facultative pathogenic mycobacteria can cause local lesions in pigs
True
Facultative pathogenic mycobacteria cannot cause tuberculosis
False
Mycobacteria are acid and alcohol fast bacteria
True
Mycobacterium tuberculosis can cause generalized tuberculosis in parrots
True
Fresh tuberculosis lesions in the lymph nodes are common the early generation
True
Mycobacteria can be stained with Ziehl-Neelsen staining
True
Mycobacteria cannot be stained
False
Obligate pathogenic mycobacteria can occur and replicate in the environment
False
All mycobacteria species are obligate pathogenic
False
The resistance of mycobacteria is low, they die in the environment soon
False
Mycobacterium bovis can cause generalised tuberculosis in goats
True
Fresh tuberculosis lesions in the lymph nodes are common in the post primary phase
False
Mycobacteria are highly resistant thanks to lipids and waxes in the cell wall
True
Mycobacterium tuberculosis can cause tuberculosis in humans
True
Mycobacterium tuberculosis can cause generalized tuberculosis in pigs
True
Mycobacterium bovis can cause generalized tuberculosis in pigs
True
Pigs are resistant against Mycobacterium tuberculosis
False
Mycobacterium bovis can cause generalized tuberculosis in badgers
True
Mycobacterium caprae can infect only goats
False
Tuberculosis lesions in the lymph node are common in the early generalization
True
The habitat of the obligate pathogenic Mycobacteria is the environment
False
Mycobacteria are obligate intracellular bacteria
False
Waxes can be found in the cell wall of Mycobacteria
True
Only Mycobacterium tuberculosis can cause tuberculosis in humans
False
Neutrophil granulocytes can be typically found in tubercles
False
Necrosis can be seen in the tubercles
True
Necrosis can be seen in the tubercles
True
The habitat of saprophytic, facultative pathogenic Mycobacteria is the environment
True
Saprophytic, facultative pathogenic Mycobacteria cannot colonize mammals
False
Mycobacteria have several shared antigens
True
The cell wall of mycobacteria contains mycolic acid
True
The tuberculin contains lipopolysaccharide (LPS) antigens
False
The cell wall of mycobacteria contains large amount of lipopolysaccharide
True
Mycobacteria can replicate only in animals
True
False? replicate in humans as well?
Mycobacterium tuberculosis causes tuberculosis in parrots
True
Mycobacterium tuberculosis causes generalized tuberculosis in badgers
False
Mycobacterium tuberculosis causes tuberculosis in poultry
False
The cell wall of mycobacteria contains mycolic acid
True
The tuberculin contains lipopolysaccharide (LPS) antigens
False
Mycobacteria can replicate only in animals
True
All mycobacteria can replicate in the environment
False
Mycobacterium bovis can cause tuberculosis in wild living ruminants
True
Mycobacterium bovis can cause tuberculosis in wild boars
True
If the increase of the thickness of the skin fold in the tuberculin test is 1.9 mm the
reaction is positive
False
The skin intradermal tuberculin test is a Type IV. hypersensitivity reaction
True
Antigens of mycobacteria show a close relationship
True
Mycobacteria can survive in the environment only for a few days
False
Atypical mycobacteria can cause lesions in pigs
True
Mycobacteria caprae can infect cattle, other ruminants and swine
True
Saprophytic, facultative pathogenic mycobacteria cannot cause tuberculosis
False
Only cattle maintain bovine tuberculosis
False
Obligate pathogenic Mycobacteria can only reproduce in the infected body
True
Facultative pathogenic mycobacteria can cause tuberculosis in fishes
True
Mycobacteria are not resistant, they can survive in the environment for maximum of
two days
False
Mycobacterium suis is the most frequent agent of tuberculosis of pigs
False
Facultative pathogenic mycobacteria can colonize the gut of pigs
True
Sometimes facultative pathogenic mycobacteria cause lesions in pig
True
Mycobacteria can survive in the environment
True
Mycobacteria cannot be cultured
False
Waxes and lipids in the mycobacteria are virulence factors
True
The agent of avian tuberculosis is an obligate pathogenic bacterium
True
Tuberculin test is an allergic test
True
Mycobacteria can be cultured, but their incubation time is long
True
Tuberculosis is diagnosed by detecting antibodies to M. bovis in the blood with ELISA
False
The center of the tubercle is necrotized
True
The tubercle consists of histiocytes and foreign body giant cell
True
The causative agents of tuberculosis are obligate pathogenic bacteria
True
Köster staining is a special staining for Mycobacteria
False
Mycobacteria are highly resistant
True
Early generalization of mycobacteria occurs via lympho-hematogenous route
True
In dogs’ tuberculosis can be generalized
True
Late generalization can be characterized by lost resistance
True
In the tubercle, coagulation necrosis is seen
True
In the phase of early generalization Mycobacteria do not replicate in the lymph node
False
Mycobacteria are a worldwide disease
True
Chronic tuberculosis causes changes in the lymph node
False
Mycobacteria can be demonstrated from the discharge of sick animals by staining
True
Tuberculosis can be demonstrated earliest by ELISA
False
Tuberculosis can first be diagnosed by PCR
False
Tuberculosis can be diagnosed with certainty serology
False
Mycobacterium infection in pigs can be zoonotic
True
Mycobacterium spp. in swine can be caused by atypical mycobacteria
True
Mycobacteria in swine can be caused by M. bovis and produces localized lesions
False
M. tuberculosis is a common mycobacterium infection of pig
False
Mycobacteria are acid and alcohol fast bacteria
True
Mycobacteria are acid and alcohol fast bacteria
True
Sawdust bedding can predispose pigs to infection by facultative pathogenic
mycobacteria
True
Facultative pathogenic mycobacteria can cause generalized tuberculosis in pigs
False
The habitat of pathogenic mycobacteria is the soil
False
The habitat of facultative pathogenic mycobacteria is the soil
False
Only cattle are susceptible to Mycobacterium bovis
False
Some facultative pathogenic Mycobacteria can cause tuberculosis in cold blooded
animals
True
