Haemophilus influenza type B, or H. Flu, is a common bacterial pathogen in humans and responsible for invasive infections such as bacterial meningitis. It usually infects newborns or unvaccinated children.
Types
The type is related to the carbohydrate structure that encapsulates the bacteria. There are several types, from type A to F.
Effects
Haemophilus influenza type B can cause serious infections like bacteremia (blood infection), meningitis, cellulitis (skin infection) and pneumonia. It can also cause less-severe illnesses like ear infections.
Considerations
Haemophilus influenza inhabits the upper respiratory tract in humans. It is transmitted from person to person by respiratory droplets or contact with respiratory secretions.
Prevention/Solution
There is a vaccine against Haemophilus influenza that is given to infants before their first birthday. The vaccine has significantly reduced the incidence of illness caused by this bacterium.
Warning
Unvaccinated children area at a higher risk of developing serious infection, including epiglottitis, a dangerous infection of the upper airway that can lead to respiratory failure.
References
- Red Book: 2009 Report of the Committee on Infectious Diseases, American Academy of Pediatrics, 2009
