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Terms that relate to biological agents to the body that improves immunity to a particular desease. Vaccines contain a weaker version of the microbe so that it is easier to handle and further recognize by the host's immune system.

Contributors in Vaccines



Pharmaceutical; Vaccines

Thimerosal is a mercury-based preservative that is often used in vaccines because of its antiseptic and antifungal properties. The use of thimerosal as a vaccine preservative has been controversial ...


Health care; Vaccines

A condition in which the body has a weakened or delayed reaction to a substance.

immune globulin

Health care; Vaccines

A protein found in the blood that fights infection. Also known as gamma globulin.

immune system

Health care; Vaccines

The complex system in the body responsible for fighting disease. Its primary function is to identify foreign substances in the body (bacteria, viruses, fungi or parasites) and develop a defense ...


Health care; Vaccines

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 ...


Health care; Vaccines

The process by which a person or animal becomes protected against a disease. This term is often used interchangeably with vaccination or inoculation.


Health care; Vaccines

When the immune system is unable to protect the body from disease. This condition can be caused by disease (like HIV infection or cancer) or by certain drugs (like those used in chemotherapy). ...

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