Enterococcus faecium strain ARL08-1189

Enterococcus faecium strain ARL08-1189 is a Gram-positive bacterium predominantly found in fermented mare milk. This strain exhibits a cocci shape and is a facultative anaerobe, indicating its ability to thrive in both aerobic and anaerobic environments. Notably, it possesses flagella, which may contribute to its motility. E. faecium ARL08-1189 has been associated with various hosts, including humans (Homo sapiens), livestock such as cattle (Bos taurus, Bos), poultry (Gallus gallus, Meleagris gallopavo, Phasianidae, Aves), and other animals like pigs (Sus scrofa) and certain fish (Lutjanus russellii). This broad host range suggests a versatile ecological role, potentially facilitating its transmission across different species. The strain is clinically significant due to its pathogenicity in humans, where it has been linked to several health issues, including endocarditis, bloodstream infections, urinary tract infections, biliary tract infections, nosocomial infections, and infected pancreatic necrosis. Its presence in healthcare settings raises concerns regarding nosocomial bacteremia, making it a notable pathogen in clinical microbiology. The single replicon characteristic of E. faecium ARL08-1189 may influence its genetic stability and adaptability, which is crucial for its survival in varied environments and hosts. Understanding the ecological and health implications of this strain underscores the importance of monitoring Enterococcus species in both clinical and agricultural contexts, particularly given their potential to cause serious infections in humans and other animals.