Enterococcus faecium strain IHC5

Enterococcus faecium strain IHC5 is a Gram-positive, facultative anaerobic cocci that primarily inhabits fermented mare milk. This bacterium is notable for its presence in various hosts, including Homo sapiens (humans), Gallus gallus (chickens), Bos taurus (cattle), and others, highlighting its adaptability across different Metazoa and Mammalia. E. faecium IHC5 possesses a single replicon and does not have flagella, indicating a non-motile nature. Despite its lack of motility, this strain has significant implications for human health. It is associated with various serious infections such as endocarditis, nosocomial (hospital-acquired) infections, bloodstream infections, urinary tract infections, biliary tract infections, and systemic infections. These health effects underscore its pathogenic potential, particularly in hospital settings where it can lead to nosocomial bacteremia and other severe complications. The broad range of hosts for E. faecium IHC5 suggests its ecological versatility and potential role in the microbiota of various animals, including domesticated species like pigs and turkeys. This adaptability may contribute to its persistence in environments where it can be transmitted to humans, leading to infections. The strain's association with fermented mare milk also raises questions about the role of dairy fermentation processes in the ecology of Enterococcus species, as these environments may facilitate the survival and transmission of pathogenic strains like E. faecium IHC5.