Haemophilus influenzae

Also known as:

Bacillus influenzae

Haemophilus influenzae bacteria cultured on a blood agar plate. (MarcoTolo 2006, Wikimedia commons)

Haemophilus influenzae is a species of the Haemophilus genus. There are unencapsulated and encapsulated strains. Encapsulated strains can be classified by their capsular antigens. There are six types of encapsulated Haemophilus influenzae; a, b, c, d, e, and f.

Most strains of H.influenzae are opportunistic pathogens. Haemophilus influenzae can cause; Human meningitis, septicaemia, bronchopneumonia, conjunctivitis, epiglottitis, and otitis

References

Ryan KJ; Ray CG (editors) (2004). Sherris Medical Microbiology (4th ed.). McGraw Hill.