Pathogenicity of anaerobic gram-positive cocci

Pathogenicity of anaerobic gram-positive cocci.

The pathogenicity of 20 strains of facultative or anaerobic gram-positive cocci (AGPC) was investigated by injecting them alone or mixed with other flora into mice, utilizing the subcutaneous abscess model. Abscesses induced by a mixture of two organisms were uniformly larger than those induced by single organisms. The relationships among seven AGPC strains, eight aerobes, and two Bacteroides s...

Gram-positive anaerobic cocci.

Gram-positive anaerobic cocci (GPAC) are a heterogeneous group of organisms defined by their morphological appearance and their inability to grow in the presence of oxygen; most clinical isolates are identified to species in the genus Peptostreptococcus. GPAC are part of the normal flora of all mucocutaneous surfaces and are often isolated from infections such as deep organ abscesses, obstetric...

Achromopeptidase for lysis of anaerobic gram-positive cocci.

Achromopeptidase, which has potent bacteriolytic activity for most of the gram-positive aerobic bacteria, was for the first time used for the lysis of anaerobic cocci. Most of the lysozyme-resistant gram-positive anaerobic cocci were lysed with this new enzyme. Peptococcus magnus was the only organism tested resistant to achromopeptidase. P. saccharolyticus was quite unusual because it was very...

Gram-positive Cocci: Staphylococci

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...