Streptococcus sanguinis strain BCC28

Streptococcus sanguinis strain BCC28 is a Gram-positive bacterium characterized by its cocci shape and a tendency to form chains or pairs. This strain is classified as a facultative anaerobe, meaning it can grow in both the presence and absence of oxygen, and it is non-motile, lacking flagella. It has a mesophilic temperature range, thriving in moderate temperature conditions. The bacterium is associated with host organisms, specifically Homo sapiens (humans) and Oryctolagus cuniculus (European rabbits), indicating a biotic relationship where it can be found free-living within these hosts. It has a single replicon and one membrane, which is typical for many bacteria. S. sanguinis strain BCC28 is known to be pathogenic to humans, with documented health effects including bacteremia, endocarditis, meningitis, and infective endocarditis. These conditions highlight the strain's potential to cause serious infections, particularly in individuals with predisposing health conditions. Understanding the ecological role of S. sanguinis strain BCC28 is essential, as it serves as part of the normal oral flora in humans. However, its pathogenic potential underscores the importance of maintaining oral health to prevent opportunistic infections. This dual nature of S. sanguinis—acting as both a commensal and a pathogen—illustrates the complex interactions within the microbiome and the potential consequences of dysbiosis.