Haemophilus parainfluenzae strain LC_1315_18

Haemophilus parainfluenzae strain LC_1315_18 is a Gram-negative, rod-shaped bacterium with a dual capability for oxygen utilization, classified as both an aerobe and a facultative anaerobe. This strain exhibits notable characteristics, including the presence of flagella, indicating potential motility, although it is reported as non-motile. It is mesophilic, thriving within a temperature range conducive to human body temperatures. The bacterium is host-associated, primarily infecting Homo sapiens, and is recognized for its role in various serious health conditions. Notably, it has been implicated in bacteremia, pneumonia, endocarditis, and acute bacterial meningitis, as well as purulent pericarditis and chancroid. These health effects underscore its pathogenic potential, particularly in immunocompromised individuals. H. parainfluenzae strain LC_1315_18 is characterized by a single replicon and a bilayered membrane structure, typical of Gram-negative bacteria. Its biotic relationship is categorized as free-living, suggesting that while it can cause infections in humans, it may also exist independently in the environment. The ecological insight from this strain lies in its dual role as both a commensal organism and a pathogen. This duality highlights the complexity of microbial interactions within the human microbiome and the potential for opportunistic infections under specific conditions. Understanding the specific traits and health implications of Haemophilus parainfluenzae can inform clinical approaches to treating infections associated with this bacterium.