Haemophilus parainfluenzae

Haemophilus parainfluenzae is a Gram-negative, rod-shaped bacterium that exhibits no motility and possesses a true flagellum. This organism is characterized by having two cellular membranes, which is typical for members of the Proteobacteria phylum. H. parainfluenzae is classified as a facultative anaerobe, indicating its ability to thrive in both aerobic and anaerobic environments, and it falls within the mesophilic temperature classification, favoring moderate temperature ranges for growth. This microbe is primarily host-associated, suggesting a close relationship with its living hosts while also being described as free-living. H. parainfluenzae has three replicons, which may reflect a certain genomic complexity that can be linked to its adaptability in various ecological niches. The organism's genome can be accessed through several accession numbers, indicating a degree of genomic characterization. Given its habitat and biotic relationships, H. parainfluenzae may play a role in the microbial communities associated with its hosts, potentially influencing host health and microbiota dynamics. This underscores the importance of understanding such microorganisms in the broader context of host-associated microbiomes and their ecological interactions.