Haemophilus parainfluenzae

Haemophilus parainfluenzae is a species of Haemophilus.

Haemophilus parainfluenzae
Scientific classification
Kingdom:
Bacteria
Phylum:
Proteobacteria
Class:
Gammaproteobacteria
Order:
Pasteurellales
Family:
Pasteurellaceae
Genus:
Haemophilus
Species:
parainfluenzae

It is one of the HACEK organisms.[1] H. parainfluenzae is an opportunistic pathogen that has been associated with endocarditis, bronchitis, otitis, conjunctivitis, pneumonia, abscesses and genital tract infections.

Natural genetic transformation

H. parainfluenzae biotypes I and II are capable of natural genetic transformation.[2] Natural genetic transformation is a bacterial adaptation for DNA transfer. In order for a bacterium to bind, take up and recombine exogenous DNA into its genome it must enter a special physiological state termed natural competence. In H. parainfluenzae, competence is induced during the late stationary phase of growth.[2] Natural DNA transformation may play a major role in the exchange of genetic information among H. parainfluenzae isolates.

References
  1. HACEK Group Infections at eMedicine
  2. Gromkova RC, Mottalini TC, Dove MG (1998). "Genetic transformation in Haemophilus parainfluenzae clinical isolates". Curr. Microbiol. 37 (2): 123–6. PMID 9662612.


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