Fusobacterium varium
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General information
the following information is not yet verified
Taxonomy
Family: Fusobacteriaceae
Natural habitats
Normal commensals of the human oropharynx, gastrointestinale tract, and female genital tract.
Clinical significance
Infection caused by Fusobacterium varium is vary rare.
The organism has been isolated mostly from intra abdominal infections
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Gram stain
the following information is not yet verified
Large Gram negative rods,
with round ends
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Culture characteristics
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the following information is not yet verified
Obligate anaerobic
BBAØ
After 2 days of incubation, on BBAØ, colonies 1 to 2 mm in diameter, nonhemolytic, semi translucent, umbonate, with erose edges.
Lipase positive strains are often β-hemolytic
BBEØ no growth
Fluorescentie/Woodslamp chartreuse / yellow-green
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the following information is not yet verified
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Characteristics
- Gram-negative
- bacilli
- medium-bacilli
- growth obligate-anaerobic
- no growth on blood agar
- no growth on MacConkey agar
- catalase-negative
- oxidase-negative
- indole-positive
- urease-negative
- nonmotile
- vancomycin-susceptible
- colistine-susceptible
- fluorescence chartreuse
- lipase positive
- indol spot test positive
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References
Microbiology on the go. An initiative by
Dept. Medical Microbiology and Infectious diseases