Infectious hematogenous lumbar spondylodiscitis caused by Actinotignum schaalii in a 74-year-old man: A case report.

• Haematogenous bacterial spondylodiscitis due to infection with a well-treatable but easily overlooked and often underdiagnosed pathogen. • An argument against short pedicle screw instrumentation, when urgent surgical therapy of the infected spine is required, in patients with PD and poor general condition. • Especially in cases where a bacterial infection is suspected clinically and by imaging, the detection of germs must be forced by all means in order to be able to treat the patients well.

Polysaccharides from Peptostreptococcus anaerobius and structure of the species-specific antigen.

The cell-envelope antigens of Peptostreptococcus anaerobius were extracted from intact cells by autoclave or alkaline treatment. The purified species-specific antigen (G) was identified among several polysaccharides obtained from the extracts by successive treatments with ribonuclease and pronase followed by ion-exchange and gel-filtration chromatography. G was investigated by 13C- and 31P-n.