<unk>  was first isolated from cerebrospinal fluid in the midst of an epidemic meningitis outbreak in Chicago. These gram-negative, aerobic bacteria reside in the mucosal membranes of the upper respiratory tract, functioning as commensals. However, this species can also play a pathogenic role in immunocompromised and diabetic individuals. In rare cases, it has been linked to meningitis, pneumonia, empyema, endocarditis, and sepsis.
Neisseria flavescens
Corynebacterium pseudotuberculosis
Bacteroides caccae
Staphylococcus aureus
Corynebacterium diphtheriae
Pseudomonas aeruginosa
Neisseria mucosa
Staphylococcus saprophyticus