Where is Moraxella found?
Moraxella organisms are Gram-negative cocci in the family Neisseriaceae. They were previously known as diplococcus of Morax-Axenfeld. Moraxellae are normal inhabitants of the upper respiratory tract and are also found on the skin and in the urogenital tract.
Where does Moraxella catarrhalis live?
Moraxella (Branhamella) catarrhalis, formerly called Neisseria catarrhalis or Micrococcus catarrhalis, is a gram-negative, aerobic diplococcus frequently found as a commensal of the upper respiratory tract (124, 126; G. Ninane, J. Joly, P. Piot, and M.
What media does Moraxella catarrhalis grow on?
With Moraxella catarrhalis, the solution stays red. Finally, it grows well on blood and chocolate agar and it doesn’t grow on modified Thayer-Martin agar, like other Gram-negative diplococci, such as Neisseria species.
When was Moraxella catarrhalis found?
Moraxella catarrhalis is a gram-negative, aerobic, oxidase-positive diplococcus that was first described in 1896. The organism has also been known as Micrococcus catarrhalis, Neisseria catarrhalis, and Branhamella catarrhalis; currently, it is considered to belong to the subgenus Branhamella of the genus Moraxella.
What is the cause of Moraxella?
Moraxella catarrhalis is a bacterium that causes infection by sticking to a host cell. It does this using special proteins called adhesins that are on its outer membrane. Doctors usually treat M. catarrhalis infections with antibiotics, but this is becoming increasingly challenging due to antibiotic resistance.
Is Moraxella opportunistic?
Moraxella catarrhalis is a human-restricted opportunistic bacterial pathogen of the respiratory mucosa.
Is Moraxella catarrhalis an STD?
Moraxella catarrhalis – Gonorrhea – STD Information from CDC.
What disease does Moraxella catarrhalis cause?
M. catarrhalis causes acute, localized infections such as otitis media, sinusitis, and bronchopneumonia as well as life-threatening, systemic diseases including endocarditis and meningitis.
How is Moraxella spread?
The organism appears to spread contiguously from its colonizing position in the respiratory tract to the infection site. There is no pathognomonic feature of M. catarrhalis otitis media, acute or chronic sinusitis, or pneumonia.
