Acinetobacter baumannii

Valeria Fabre, M.D.

MICROBIOLOGY

Aerobic Gram-negative coccobacillus [Fig] or rod.
- It may be mistaken for Neisseria, Haemophilus spp. or Moraxella on Gram stain.
Common in the environment (water, soil) and hospitals (catheters, lotions, ventilation equipment)
Grows on standard agar media.
- Oxidase negative
A. baumannii is the major species of Acinetobacter.
- Other species include A. calcoaceticus, A. lwoffi, A. junii, A. johnsonii and A. baylyi.

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