Lab 4 Flashcards
usually mycobacterium spp. need a long time for their cultivating in vitro?
True
can take many weeks
M.tuberculosis belongs to the m. avium complex?
false
m. microti can cause bird tuberculosis?
False
Rodents
main habitat of Nocardia spp. is in the soil?
True
Corynebacterium pseudotuberculosis causes lymphadenitis?
True
Nitrate-negative biotype
Rhodococcus equi is an intracellular pathogen?
True
Rhodococcus equi causes pneumonia in foals?
True
and abscesses in the lungs
mycobacterium avium spp. has cream like colonies on a solid medium?
true
mycobacterium are acid- and alcohol - fast bacteria?
true
as a result of ziehl-neelsen staining pathogenic mycobacterium are red?
True
human leprosy is caused by m.lepraemurium?
False
m. laprae
m. lepraemurium - mouse
Dermatophylus congolensis infects mainly sheep and causes purulent mastitis and endocarditis?
False
Exudative dermatitis
Most mycobacteria are flagellated?
False
no flagella in any of the spp.
Dermatophilus can be found on the skin of infected animals?
True
Nocardia asteroides produces carotenoid pigments?
True
yellow, red, pink
cattle lumpy jaw is caused by actinomyces bovis?
True
Actinobaculum can cause pyelonephritis in pigs?
True
Trueperella pyogenes can cause arthritis in pigs?
True \+ mastitis metritis pneumonia navel infections
as a result of ziehl-neelsen staining pathogenic mycobacterium are blue?
False
their red
Cattle can be infected with mycobacterium bovis only?
False
mycobacterium are obligate anaerobes?
False
obligate aerobes
Nocardia can be found in the infected host body only?
False
in the soil
cattle lumpy jaw is caused by actinomyces viscosus?
False
A. bovis
Truperella pyogenes causes exudative dermatitis in sheep?
False
Truperella pyogenes causes mastitis in cattle?
True
obligate pathogenic mycobacteria can multiply in the host and the environment?
False
infected host only
Mycobacterium are spore forming?
False
Mycobacterium spp. are ziehl-neelsen positive bacteria?
True
Ziehl-neelsen positive bacteria are blue?
False
their red
usually mycobacterium spp. need a long time for their culturing in vitro?
True
sometimes many weeks
m.tuberculosis belongs to the m.avium complex
False
incubation time of m. bovis is 6-12 weeks?
False
4-8 weeks
Nocardia asteroides is a soil bacteria?
True
Nocardia asteroides is an obligate aerobic bacterium?
True
Pneumonia can be caused by truperella pyogenes?
True
Pericarditis in dogs can be caused by actinomyces hordeovulneris?
True
Truperella pyogenes can cause metritis?
True
Dermatophilus congolensis produces carotenoid pigments?
False
Nocardia produces carotenoid pigments
Obligate pathogenic mycobacteria can multiply in the host body only?
True
Mycobacterium bovis is gram-positive and ziehl-neelsen-negative?
False
Both positive
Animals can be infected by a mycobacterium spore?
False
Non spore forming
Mycobacterium tuberculosis forms islands on the surface of the broth?
False
m. bovis forms islands
m. tuberculosis forms thin film
nocardia is a soil microorganism?
True
nocardia is an obligate anaerobe?
False
obligate aerobe
arthritis of swine can be caused by truperella pyogenes?
True
infectious form of the dermatophilus is the zoospore?
True
Truperella pyogenes causes mastitis or pneumonia?
True
Dermatophilus can produce carotenoid pigments?
False
Nocardia produce the pigments
mycobacterium is catalase negative?
True
