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Home > Glossary > I

I

Idiopathic

is a term used to describe a disease or disorder that has no known cause.

Immunisation

donates the process of inducing or providing immunity artifically. This may be either active or passive.

Immune system

The body's system for fighting infectious disease.

Immunity

Protection against a disease. There are two types of immunity, passive and active. Immunity is indicated by the presence of antibodies in the blood and can usually be determined with a laboratory test.  See active and passive immunity.

Immunoglobulin

Human immunoglobulin is that fraction of blood plasma that contains antibodies, notably those against infectious agents.

Preperations of immunoglobulin belong to 2 main categories:

  • Human Normal Immunoglobulin (HNIG)
  • Human Specific Immunoglobulin / Hyperimmune Globulin

Inactivated vaccine

These vaccines are manufactured either from the killed germ, or from the toxin, or using parts of the germ either as component vaccines or as conjugate vaccines.

Abbreviations

IM

Intramuscular

IMB

Irish Medicines Board

IPD

Invasive Pneumococcal Disease

IPV

Inactivated Polio Vaccine

Health Protection Surveillance Centre The Department of Health and ChildrenIrish College Of General Practitioner