Hepatitis A
A minor viral disease that usually does not persist in the blood; transmitted through ingestion of contaminated food or water.
Herd Immunity
Vaccination protects the individual immunised who is less likely to be a source of infection to others. This reduces the risk to unimmunisedindividuals being exposed to infection. Thus, individuals who have not been immunised, or those who cannot be immunised, get some benifit from the immmunisation programme. This concept can also be called population immunity.
Hexavalent Vaccine
is a combinedvaccine that protects against six different diseases. An example is the 6 in 1 vaccine that protects against Diphtheria, Tetanus, Pertussis (Whooping Cough), Polio, Haemophilus Influenzae b, Hepatitis B.
Abbreviations Hib
Haemophilus influenzae type b
HIV
Human Immunodeficiency Virus
HNIG
Human Normal Immunoglobulin
HPSC
Health Protection Surveillance Centre
HPV
Human Papilloma Virus
HIQA
Health Information and Quality Authority
HSE
Health Service Executive
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