Haemophilus influenzae


Routine Practices

General Information

Small gram negative bacillus, encapsulated or not (non=non-typeable)

Normal respiratory flora.

Invasive disease sharply declined after Hib conjugate vaccine widely used, especially in children <5yrs old who were the main victims.

Most invasive disease is now caused by non-typable strains.

Colonizer of the upper respiratory tract

May cause invasive disease including:

  • Meningitis

  • Pneumonia/empyema

  • Bacteremia

  • Epiglottitis

  • MSK infection

  • Others

Droplet precautions if in paediatric population or presentation is epiglottitis.

Disease of Public Health Significance