Enterococcus faecium strain AR98-565

Enterococcus faecium strain AR98-565 is a Gram-positive bacterium classified as a facultative anaerobe and characterized by its cocci shape. It thrives in the habitat of fermented mare milk, indicating its adaptability to specific ecological niches. This strain possesses flagella, which may enhance its motility in various environments. E. faecium is known for its ability to infect multiple hosts, including Homo sapiens (humans), Gallus gallus (chickens), Bos taurus (cattle), and several other species across Metazoa. Its pathogenic potential is significant, as it is associated with a range of health issues in humans, including endocarditis, bloodstream infections, urinary tract infections, and nosocomial infections. The strain has also been implicated in biliary tract infections and systemic infections, highlighting its relevance in clinical microbiology. With one replicon, E. faecium AR98-565's genetic simplicity may play a role in its adaptability and survival in diverse hosts. The bacterium's presence in fermented mare milk suggests it may contribute to the microbiota of this niche, potentially affecting fermentation processes and the health of the milk ecosystem. The association of E. faecium with both beneficial fermentation in food products and serious human infections underscores the duality of its ecological role. Its ability to thrive in fermented environments while posing health risks in clinical settings reflects a complex interplay within microbial communities and emphasizes the need for careful monitoring of its presence in both food and healthcare contexts.