Mycobacterium cosmeticum
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Actinobacteria, Class Actinobacteria, Order Actinomycetales, Suborder Corynebacterineae, Family Mycobacteriaceae, Genus
Mycobacterium,
Mycobacterium cosmeticum Cooksey et al. 2004.
Acid-fast rods,  0.55 x 1.5 μm. Non-motile. Non-spore-forming.  Rarely form cell
aggregates in liquid culture. Cell branching is not present.
Colonies are smooth, domed and scotochromogenic, with a pale yellow coloration on
Lowenstein–Jensen medium and on Middlebrook 7H10 agar. Growth from dilute
inocula appears after 3 days incubation on Löwenstein-Jensen medium at 28-37 ºC;
does not grow at 45 ºC. Grows on MacConkey agar (without crystal violet), but not on
agar supplemented with 5% (w/v) NaCl.
Undetermined.
Isolated from from footbath drains and a sink at a nail salon in USA, from a man with  pulmonary disease, and from a granulomatous
lesion of a female patient in Venezuela who was undergoing mesotherapy. Susceptible in vitro to ciprofloxacin, amikacin, tobramycin,
cefoxitin, clarithromycin, doxycycline, sulfamethoxazole and imipenem.
  1. Cooksey RC, de Waard JH, Yakrus MA, Rivera I, Chopite M, Toney SR, Morlock GP, Butler WR. Mycobacterium cosmeticum sp.
    nov., a novel rapidly growing species isolated from a cosmetic infection and from a nail salon. Int J Syst Evol Microbiol 2004; 54:
    2385-2391.
  2. John G. Magee and Alan C. Ward 2012. Family III. Mycobacteriaceae Chester 1897, 63AL in Bergey’s Manual of Systematic
    Bacteriology, Volume Five The Actinobacteria, Part A, Michael Goodfellow & al. (editors), 312-375.
  3. Cooksey RC, de Waard JH, Yakrus MA, et al. Mycobacterium cosmeticum, Ohio and Venezuela. Emerg Infect Dis. 2007;13(8):
    1267-1269. doi:10.3201/eid1308.061061
Positive results for arylsulfatase (14 days), iron uptake, and nitrate reduction.
Can utilize as sole carbon source L-arabinose, citrate, i-myo-inositol, D-mannitol and xylose.

Negative results for arylsulfatase (3 days) and niacin production.
No utilization of sorbitol as sole carbon source.
(c) Costin Stoica
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