Past papers 3 Flashcards
Gram-negative, motile rods include genera (PPESYV):
Proteus
Pseudomonas
Escherichia
Salmonella
Yersinia
Vibrio
The main pathogenic feature of genus Leptospirosa is:
endothel damage
Genus Leptospirosa has how many species?
22
Genus Leptospirosa is divided into:
24 serogroups
Bacillus anthracis, Klebsiella pneumoniae and Streptococcus pneumoniae are important species of:
encapsulated pathogenic bacteria
Non-motile bacteria
Antigens of Klebsiella and Bacillus:
Klebsiella: O + K
Bacillus: O + K
Genus Salmonella:
Lactose negative
2 species
over 2000 serotypes
The two main toxins of Salmonella are:
enterotoxins and cytotoxins
Host adapted salmonella serotypes include:
S. pullorum, S. paratyphi and S. dublin
Name the two species of Salmonella:
S. bongori and S. enteritidis
Borrelia burgdorferi sensu lato has how many species?
20
Name genospecies of B. burgdorferi sensu stricto:
B. garinii, and B. afzelii
Pathogenesis of infection of B. burgdorferi sensu lato:
OspA (antigen) (tick) –> OspC (host)
Pathogenic E. coli may produce (toxins):
enterotoxins, verotoxins and cytotoxic necrotising factor
The main virulence of E. coli are:
fimbrial antigens which consists of LPS
Verotoxins VT1 and VT2 inhibit:
proteosynthesis and are responsible for endothelial damage
Rhodococci are:
capsulated gram positive
non-motile bacteria
coccal transformation
R. equi produces:
exotoxin (equi factor)
R. equi can cause:
ulcerative colitis and mesenteric lymphadenitis in foals
The main pathogenic feature of Listeria is:
intracellular survival in phagocytes
Important virulence factor in Listeria is:
Haemolysin-listeriolysin O
Listeria are able to:
penetrate into cells by polymerization of the host cell and by formation of long actin fibres
Insects play an important role in transmission of these pathogens (5) (BbFtCbYpRr):
Borrelia burgdorferi
Francisella tularensis
Coxiella burnetti
Yersinia pestis
Rickettsia rickettsi
Scotochromogenic mycobacteria produce pigments only in:
dark
Chlamydia causes infections such as:
psittacosis and ornitosis
Virulence factors of M. tuberculosis include:
cord factor and intracellular surviving
Colonies of slow growing mycobacteriaceae are visible after:
more than 7 days after incubation
Clostridia produce toxins:
extracellular and sporulating, protoplasmic, lethal and dermonecrotoxic
Rickettsia belong to microorganisms which are transmitted by:
vectors - arthropods
Rickettsia are not able to synthesize:
macroenergetic substances and therefor use host cells
Rickettsia multiply mainly in:
cytoplasm of phagocytic cells
EPidemic spotted typhus is transmitted from man to man by
lice
Endemic mice typhus is transmitted by:
flea
Myobacteria tuberculosis causes:
tuberculosis
Botryomycosis is caused by:
Staphylococcus aureus
Q fever is causes by
Coxiella burnetii
Atrophic rhinitis is caused by:
Pseudomonas aeruginosa and pasteurella multocida
Virulence factors of streptococcus include:
Protein M (antiphagocytic and adherence effect)
Haemolysins (damage leukocytes)
Capsules from hyaluronic acid (antiphagocytic effect)
Protein A is virulence factor of:
Staphylococcus
Virulence factors of Salmonella are:
Lipid A of cell wall
Exotoxins: enterotoxin and cytotoxin
Special growth conditions are required for bacteria (5):
Actinobacillus
Haemophilius
Mycobacterium
Brucella
Staphylococcus
Host non-adapted Salmonella serovars are:
S. enteritidis and S. typhimurium
Facultative intracellular bacteria are (SLEBF):
Salmonella
Listeria
E. coli
Brucella
Francisella
Phosphoenolpyruvate: sugar phosphatetransferase system (PTS) consists of:
3 enzymes and low molecular heat resistant protein (HPr)
- HPr and enzyme I are cytoplasmic
Enzyme II is integral membrane protein
Enzyme III is either cytoplasmic or peripheral protein
Phosphoenolpyruvate (PEP) is the:
High energy phosphate donor
Phosphoenolpyruvate is important for:
group translocation
