Shigella flexneri strain 551537

Shigella flexneri strain 551537 is a pathogenic bacterium primarily associated with human hosts, specifically Homo sapiens, but it is also found in some primates and certain species of bats (Pteropodidae). This gram-negative organism exhibits a rod shape and can be observed in pairs or singles. As a chemoorganotroph, it derives energy from organic compounds, and it has a facultative oxygen requirement, allowing it to thrive in varying oxygen conditions. The strain is motile, possessing flagella, which may contribute to its pathogenic capabilities. It is mesophilic, with an optimal growth temperature of 37°C, aligning with the human body temperature, which facilitates its survival and replication in a host environment. Shigella flexneri strain 551537 has a single replicon and features a double membrane structure, characteristic of gram-negative bacteria. This bacterium is notable for causing severe health effects, including shigellosis, characterized by dysentery and severe diarrhea. It is recognized for its role in pandemic dysentery outbreaks, highlighting its significant public health impact. The nonsporulating nature of this strain indicates that it does not form spores, which may affect its survival strategies outside a host. In summary, Shigella flexneri strain 551537 illustrates the complex ecological relationship between pathogenic bacteria and their hosts, emphasizing the importance of understanding such pathogens in the context of public health and disease prevention.