Moraxella Infection


Moraxella catarrhalis (M. catarrhalis) is a type of bacteria that’s also known as Neisseria catarrhalis and Branhamella catarrhalis.

It used to be considered a normal part of the human respiratory system, but more recent research shows that can it sometimes causes infections



The symptoms are similar to flu. However patient feels worse over the course of a week rather than better. They can also cause greenish-yellow discharge in your nose, pressure or pain in your face, and a fever.



The respiratory panel done in the clinic can confirm the presence of Moraxella within 24 hours. 



Common antibiotics used to treat M. catarrhalis infections include:

  • amoxicillin-clavulanate (Augmentin)
  • trimethoprim-sulfamethoxazole (Bactrim)
  • extended-spectrum cephalosporins, such as cefixime (Suprax)
  • macrolides, such as azithromycin (Zithromax)

Adults can also take tetracycline and fluoroquinolone antibiotics.


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