Gram negative diplococcus. M. atlantae, M. catarrhalis, M. lacunata, M. nonliquefaciens, M. osloensis, M. phenylpyruvica and others. (PubMed Review)
Part of life. More often found in children, only 1-3% of adults will be carriers.
Most common organsim isolated in laryngitis in adults.
Moraxella lacunata: blepharoconjunctivitis in humans.
Moraxella bovis: keratoconjunctivitis in swine. Look out for the pig with the red eyes. It hasn't been crying.
They always make beta-lactamases.
The big problem with this organism is 80-90% now make a beta lactamase; probably isn't important in COPD exacerbation; probably is important in pneumonia.
Osler died of this organism, or so I have read.
Last update: 05/05/18