Pathogens
Moraxella catarrhalis

Moraxella catarrhalis

Susceptibilities

General Information

Preferred:

  • Doxycycline
  • Azithromycin
  • Sulfamethoxazole-trimethoprim

Alternatives:

  • Cefuroxime
  • 3rd generation cephalosporins

Gram-negative diplococci

  • Distinguishable from Neisseria spp. by carbohydrate utilization assays or MALDI-TOF
  • Characteristic 'Hockey Puck' movement on agar

Common upper respiratory colonizer

  • Pediatrics: 33-100%
  • Adults: 1-5%; higher rates in those with pulmonary disease
  • Community-acquired pneumonia
  • Upper respiratory tract infections
  • COPD exacerbations