Infections with Acinetobacter, Moraxella and Branhamella

Last Updated: 2023-07-07

Author(s): Anzengruber F., Navarini A.

ICD11: -

  • The 3 gram-negative germs belong to the physiological flora, but are facultatively pathological in immunosuppression.


  • Acinetobacter species are commonly found inguinally, axillary, perineally and interdigitally without pathological value, but can also lead to sepsis through secondary wound infection.


  • Moraxella may be aetiologically significant in the development of ocular infections, reactive arthritides and septic vasculitides.


  • Branhamella catarrhalis is a trigger of purulent bronchitis.
  1. Henriksen, S.D., Moraxella, neisseria, branhamella, and acinetobacter. Annu Rev Microbiol, 1976.  30 : p. 63-83.