Enterococcus faecium strain SN504

Enterococcus faecium strain SN504 is a Gram-positive bacterium that exhibits a cocci shape and is classified as a facultative anaerobe, allowing it to thrive in both aerobic and anaerobic environments. This strain is primarily found in fermented mare milk, indicating its ecological niche within dairy fermentation processes. E. faecium strain SN504 possesses one replicon and is notable for its pathogenic potential in humans, being associated with various health complications. These include endocarditis, nosocomial infections, bloodstream infections, urinary tract infections, biliary tract infections, and infected pancreatic necrosis. The strain has also been linked to nosocomial bacteremia and systemic infections, highlighting its role as a significant opportunistic pathogen. In addition to humans, E. faecium strain SN504 can inhabit a diverse range of hosts, including various species of mammals, birds, and fish, such as Homo sapiens, Bos taurus, Gallus gallus, and Lutjanus russellii. This broad host range suggests its adaptability and potential for transmission across different species. The presence of flagella in this strain may contribute to its mobility within various environments, though its primary habitat remains fermented mare milk. Understanding the ecological role and pathogenic mechanisms of E. faecium strain SN504 is crucial for managing its impact on human health, particularly given its association with severe infections in clinical settings.