Ewingella americana strain BRK18a

Ewingella americana strain BRK18a is a Gram-negative rod-shaped bacterium that has been isolated from various habitats, including citrate solution, domestic water, fresh pork meat, and vegetables. This strain is notable for its ability to thrive at an optimal temperature of 4°C. Ewingella americana possesses a single replicon, indicating a relatively simple genomic structure. This bacterium has been identified as a pathogen in humans, causing a range of serious health effects, including bacteremia, pneumonia, peritonitis, meningitis, osteomyelitis, septic arthritis, conjunctivitis, and Waterhouse-Friderichsen syndrome. In addition to its impact on human health, Ewingella americana has been associated with internal stipe necrosis in the mushroom species Agaricus bisporus, suggesting potential ecological interactions with both animal and plant hosts. Notably, it has been identified in hosts such as Homo sapiens, Myocastor coypus (nutria), and Agaricus bisporus, indicating its versatility and adaptability in various environments. The presence of Ewingella americana in domestic water and food sources, alongside its pathogenic potential, raises significant public health concerns. Given its association with severe infections, monitoring for this bacterium in relevant habitats could be critical for preventing outbreaks and safeguarding human health. Understanding the ecological roles and interactions of Ewingella americana could provide insights into its pathogenic mechanisms and inform strategies for managing its presence in food and water systems.