Actinobaculum schaalii - invasive pathogen or innocent bystander? A retrospective observational study

摘要

BackgroundActinobaculum schaalii is a Gram-positive, facultative anaerobic coccoid rod, classified as a new genus in 1997. It grows slowly and therefore is easily overgrown by other pathogens, which are often found concomitantly. Since 1999, Actinobaculum schaalii is routinely investigated at our hospital, whenever its presence is suspected due to the detection of minute grey colonies on blood agar plates and negative reactions for catalase. The objective of this study was to determine the clinical significance of Actinobaculum schaalii, identified in our microbiology laboratory over the last 11 years.