Escherichia coli strain G1/2

Escherichia coli strain G1/2 is a Gram-negative, rod-shaped bacterium that exhibits a facultative anaerobic metabolism, allowing it to thrive in varying oxygen conditions. This strain typically arranges itself in pairs or singles and possesses flagella, enabling it to be motile. It is classified as mesophilic, with an optimal growth temperature of 37°C, which aligns with the body temperature of its primary hosts. The strain is host-associated and has been identified in a wide range of organisms, including Homo sapiens (humans), Gallus gallus (chickens), Bos taurus (cattle), Canis lupus familiaris (domestic dogs), and Felis catus (domestic cats), among others. Its biotic relationship is free-living, indicating that it can exist independently in various environments, while also being associated with numerous hosts. E. coli strain G1/2 is known to cause a variety of health issues, particularly in humans, such as urinary tract infections (UTIs), peritonitis, gastrointestinal infections, and neonatal meningitis. Its pathogenicity can lead to severe conditions such as hemorrhagic colitis and hemolytic uremic syndrome (HUS), which underscores its role as a significant human pathogen. The strain’s ability to infect multiple hosts highlights its ecological versatility and potential for zoonotic transmission, as it can persist in both human and animal populations, influencing public health and food safety.