Escherichia coli strain STEC 309

Escherichia coli strain STEC 309 is a pathogenic, Gram-negative bacterium primarily associated with hosts such as Homo sapiens, various livestock species, and certain plants. This strain is a rod-shaped microorganism that exhibits mobility due to the presence of flagella and is classified as a facultative anaerobe, allowing it to thrive in both aerobic and anaerobic environments. The optimal growth temperature for STEC 309 is 37°C, positioning it within the mesophilic temperature range. STEC 309 is known for its significant health impacts, particularly in humans, where it is linked to various serious conditions, including urinary tract infections (UTIs), gastrointestinal infections, and severe outcomes such as hemolytic uremic syndrome (HUS) and neonatal meningitis. The strain's biotic relationship is characterized as free-living, indicating its ability to exist independently in various environments, which may contribute to its transmission and pathogenicity. The strain's broad host range, including mammals, birds, and even some insects, suggests a versatile ecological adaptability. This adaptability may facilitate the bacterium's persistence in different ecological niches, enhancing its potential for causing foodborne infections and other diseases. Understanding the habitat and pathogenic traits of E. coli strain STEC 309 can inform public health measures aimed at controlling its spread and mitigating the health risks associated with infections.