Escherichia coli strain E-9

Escherichia coli strain E-9 is a Gram-negative, rod-shaped bacterium that demonstrates mobility due to the presence of flagella. It is a facultative anaerobe, thriving optimally at 37°C and fitting within the mesophilic temperature range. E-9 exhibits a cell arrangement characterized by singles and pairs, and it possesses a double membrane structure typical of Gram-negative bacteria. This strain is host-associated, living freely in various environments, and interacts with a wide range of hosts, including Homo sapiens, various livestock species such as Bos taurus and Sus scrofa, as well as numerous other vertebrates and invertebrates. The diverse host range underscores its ecological versatility and adaptability. E-9 is associated with a significant number of health effects in humans and animals, being implicated in conditions such as urinary tract infections (UTIs), gastrointestinal infections, and neonatal meningitis. Other notable health issues include severe complications like hemolytic uremic syndrome (HUS), food poisoning, and various forms of colitis. The pathogenicity of E-9 in humans highlights its role as a significant contributor to clinical diseases, particularly in immunocompromised individuals and infants. Understanding the interactions between E-9 and its various hosts could provide insights into its epidemiology and the mechanisms underlying its pathogenic effects. Furthermore, the strain's presence in both human and agricultural contexts emphasizes the importance of monitoring its spread to mitigate health risks associated with its infections.