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Rothia Mucilaginosa

Rothia mucilaginosa is a normal inhabitant of the human oral cavity and respiratory tract. It is an infrequent pathogen, mostly affecting severely immunocompromised patients.[70] Cases of bacteremia, endocarditis, catheter-associated bloodstream infection, central nervous system infections, endophthalmitis, spondylodiscitis, osteomyelitis, prosthetic joint infection, pneumonia, cholangitis and CAPD peritonitis have been described.

Obsolete names for R. mucilaginosa are Staphylococcus salivarius, Micrococcus mucilaginosus and Stomatococcus mucilaginosus.


Rothia mucilaginosais a facultative anaerobe, oxidase-negative, catalase-variable Gram-positive coccus; in smears the bacterium appears in pairs or clusters. It grows well on most nonselective media and in standard blood culture systems. On sheep blood agar the bacterium forms clear to white, nonhemolytic, mucoid or sticky colonies that adhere to the agar surface. Further distinguishing characteristics include …