Rothia mucilaginosa

Species of bacterium

Rothia mucilaginosa is a Gram-positive, coagulase-negative, encapsulated, non-spore-forming and non-motile coccus, present in clusters, tetrads or pairs that is a part of the normal oropharyngeal flora. Belonging to the family Micrococcaceae, it was first isolated from the mucous membrane of the cheek and gingiva. It is an oral commensal, that has been linked to causing severe bacteremia in immunocompromised patients. This bacterium has also been shown to form biofilms, similar to that of Pseudomonas aeruginosa. R. mucilaginosa is a cohabitant in the lower airways of patients with chronic lung diseases such as bronchiectasis, however has been shown to elicit anti-inflammatory effects.

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