question
Gram(+) cocci
Fac ana (xcpt for saccharolyticus - obli ana)
Tetrads/clusters
Catalase(+)
Oxidase(+)
Non-motile
Grows in 7.5 - 10% NaCl
Fac ana (xcpt for saccharolyticus - obli ana)
Tetrads/clusters
Catalase(+)
Oxidase(+)
Non-motile
Grows in 7.5 - 10% NaCl
answer
Staphylococcus and micrococcus
question
Gram(+) cocci
Aerotolerant ana
Pairs / chains
Some are capnophilic
Colony is small and transparent
Aerotolerant ana
Pairs / chains
Some are capnophilic
Colony is small and transparent
answer
Streptococcus and enterococcus
question
Gram(+) bacilli
Aero & fac ana
Catalase(+)
Spore-forming
Aero & fac ana
Catalase(+)
Spore-forming
answer
Bacillus
question
Gram(+) bacilli
Catalase(+)
Not spore-forming
Not branching
Catalase(+)
Not spore-forming
Not branching
answer
Listeria and corynebacterium
question
Gram(+) bacilli
Catalase(-)
Not branching
H2S(+) in Triple sugar iron
Catalase(-)
Not branching
H2S(+) in Triple sugar iron
answer
Erysipelothrix rhusiopathiae
question
Gram(v / -)
BAP: no hemolysis
HBT Agar: B-hemolysis
BAP: no hemolysis
HBT Agar: B-hemolysis
answer
Gardnerella vaginalis
question
Gram(+)
Strict aero
Urease(+)
Beaded appearance
Branching
Partially acid-fast
Strict aero
Urease(+)
Beaded appearance
Branching
Partially acid-fast
answer
Nocardia
question
Fac ana
Not spore-forming
Glucose fermenters
Catalase(+) xcpt shigella dysenteriae
Oxidase(-) xcpt plesimonas
Commensal flora xcpt salmonella, shigella, yersinia (true pathogen
Nonencapsulated xcpt klebsiella, enterobacter
Not spore-forming
Glucose fermenters
Catalase(+) xcpt shigella dysenteriae
Oxidase(-) xcpt plesimonas
Commensal flora xcpt salmonella, shigella, yersinia (true pathogen
Nonencapsulated xcpt klebsiella, enterobacter
answer
Enterobactericiae
question
Motility: nontrichous, shooting star
Oxidase(+) xcpt metschnikovii
Halophilic xcpt cholera & minicus
Oxidase(+) xcpt metschnikovii
Halophilic xcpt cholera & minicus
answer
Vibrio spp.
question
Gram(-)
Not motile
Catalase(+) xcpt bettyae & cabilli
Oxidase(+)
Glucose fermenters
Mostly susceptible to penicillin
Reduce nitrate to nitrite
Not motile
Catalase(+) xcpt bettyae & cabilli
Oxidase(+)
Glucose fermenters
Mostly susceptible to penicillin
Reduce nitrate to nitrite
answer
Pasteurella
question
Gram(-) coccobacilli
Fac ana
Pleomorphic
Requires X and V factor
Fac ana
Pleomorphic
Requires X and V factor
answer
Haemophilus
question
Catalse(-)
Oxidase(-)
Urease(-)
Nitrate reductase(-)
Facultatively intracellular bacterium
Multiply and persist in RBCs
Angio proliferation, inhibit endothelial cells
Oxidase(-)
Urease(-)
Nitrate reductase(-)
Facultatively intracellular bacterium
Multiply and persist in RBCs
Angio proliferation, inhibit endothelial cells
answer
Bartonella
question
Gram(-) fastidious bacilli
Obli aero
Motile
Mesophilic (20-45*C)
Obli aero
Motile
Mesophilic (20-45*C)
answer
Legionella spp.
question
Gram stain: poorly stained
Catalase(+)
Urease(+)
Fine grain of sand
Requires erythritol
Catalase(+)
Urease(+)
Fine grain of sand
Requires erythritol
answer
Brucella
question
Gram(-) cocobacilli
Strict aero
Oxidase(-)
Urease(+)
Not motile
Capsule as major virulence factor
Strict aero
Oxidase(-)
Urease(+)
Not motile
Capsule as major virulence factor
answer
Francisella
question
Gram(-) cocci
Catalase(+)
Oxidase(+)
Superoxol(+)
Glucose fermenter
Catalase(+)
Oxidase(+)
Superoxol(+)
Glucose fermenter
answer
Neisseria
question
Gram(-) cocci
Catalase(+)
Oxidase(+)
Catalase(+)
Oxidase(+)
answer
Moraxella
question
Strict aero
Not motile
Not spore-forming
Slender, rods
Increase CO2 = enhance growth
Not motile
Not spore-forming
Slender, rods
Increase CO2 = enhance growth
answer
Mycobacteria
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