Meningitis Caused by Atypical Gram-negative Cocci

Meningitis Caused by Atypical Gram-negative Cocci.

Gram-negative cocci found in samples of purulent spinal fluid during routine laboratory examinations are apt to be reported as meningococci without further confirmation. While the meningococcus no doubt is the most common gram-negative coccus associated with acute meningitis, there are many others which play a r6le, particularly in sporadic cases. Error in diagnosis is also apt to occur in cert...

Post-neurosurgical meningitis; gram negative bacilli vs. gram positive cocci

Background: Post-neurosurgical meningitis is a significant cause of mortality and morbidity. In this study we aimed to compare the differences of clinical, laboratory features and outcomes between the post-neurosurgical meningitis caused by gram-negative bacilli (GNB) and gram-positive cocci (GPC). Methods: Cases of post-neurosurgical meningitis (with positive CSF culture) were included. After...

Characterization of atypical aerobic gram-negative cocci isolated from humans.

Six atypical aerobic gram-negative cocci, isolated from humans, were classified taxonomically by genetic relatedness (DNA base pairs and DNA homology), fatty acid content, pigment absorption profile, and other physiological and biochemical characteristics. One strain (M448), which produced acid only from glucose, was identified as Neisseria meningitidis; one strain (CH), which produced acid fro...

Pneumonia and meningitis caused by a new nonfermentative unknown gram-negative bacterium.

Seven isolates of an unclassified bacterium resembling Flavobacterium spp. were characterized by growth requirements, microscopic examination, biochemical characteristics, antimicrobial susceptibility tests, protein profile analysis, and serologic data. The unclassified isolates were differentiated from Flavobacterium meningosepticum, Flavobacterium odoratum, Flavobacterium balustinum, Flavobac...

Gram-positive Cocci: Staphylococci