Haemophilus Influenzae Type B Vaccine

ABOUT THE DISEASE
Haemophilus influenzae type B (Hib) is bacterium that infects mainly young children. The bacteria attack the brain membrane and result in meningitis. Centers for Disease Control and Prevention states that it is “the number one cause of bacterial meningitis in children younger than 5 years old”(1). Besides, it can also lead to epiglottitis, pneumonia, arthritis and bacteremia. Signs and symptoms depend on the affected body parts. These may include fever, headache, stiff neck, nausea, photophobia and confusion if infection of brain membrane is involved. Symptoms like fever, sore throat, drooling, pain on swallowing and difficulty breathing may happen if throats are infected. Immediate medical consultation is required for suspected cases with persistent fever. For severe cases, death can be resulted.

ABOUT THE BACTERIA
There are 6 types of Haemophilus influenza bacteria identifiable by now and type B is the most common that appears among people. People can indeed carry the bacteria in noses and throats without getting sick. However, it can spread via droplets and can cause invasive infection of brain membrane especially toward young children and weak people who are immunocompromised. Prompt medical treatments with antibiotics are necessary to avoid severe complications and fatality.

ABOUT THE VACCINATION
Maintaining good hygiene is always the key point to prevent infection. Besides, young and weak people should avoid staying in crowded areas.
In addition, vaccination of Hib is especially suggested to children under 5 years old. 4 doses are needed for infants and only 1 dose is required for children aged 1-5. Side effects are usually mild, including pain, redness and swelling of the injection site, fatigue, restlessness, loss of appetite, nausea and fever. For severe discomfort, please seek for medical consultation as soon as possible.

For further enquiries or bookings for vaccination, please contact us (+852) 2779 8388.

REFERENCE

  • Centers for Disease Control and Prevention – https://www.cdc.gov/hi-disease/about/types-infection.html
  • Centre for Health Protection, Department of Health, Hong Kong – http://www.chp.gov.hk/