test 4 notes 9 - I mmunities Definitions of Immunity...

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Immunities Definitions of Immunity IMMUNITY - Immunity is defined as protection from infectious disease. There are two general kinds of immunity, passive and active. Active Immunity - Immunity (i.e., protection) produced by the person's own immune system after recognition of foreign substances (usually live microorganisms) and its production of protein substances (i.e., antibodies ) to the specific parts of the microorganisms (i.e., antigens). This type of immunity is usually permanent, lasting for the lifetime of the individual. Passive Immunity - Immunity (protection) produced by others (human or animal) in the form of antibodies and transferred to another human usually by injection, transfusion, or naturally across the placenta from mother to child . This protection is temporary because the lifespan of the transferred antibodies is limited to a few weeks or months. Methods of Acquiring Passive Immunity - NATURALLY ACQUIRED PASSIVE IMMUNITY - The immunity that is passed from mother to infant during the last 1-2 months of the gestational period. (Note: Infants born prematurely may not get this type of immune protection.) - HOMOLOGOUS POOLED HUMAN ANTIBODY - Also called GAMMA GLOBULIN; these products are harvested from thousands of human volunteers who have "theoretically" been exposed to a variety of illness to which they have developed a variety of antibodies. The serum contains numerous antibodies (IgG immunoglobulins) and is used for post-exposure treatment of hepatitis A and measles. (The brand name of the product is BayGam) - HOMOLOGOUS HUMAN HYPERIMMUNE GLOBULINS - These are harvested from selected human volunteers who have been exposed to specific diseases to which they have developed very high titers of a selected antibody to a specific disease. They are used primarily for post-exposure prophylaxis for hepatitis B [hepatitis B immune globulin (BayHep B)], rabies (rabies immune globulin [BayRab)], tetanus (tetanus immune globulin [BayTet], and varicella-zoster (VZIG). They are administered to patients who have never been vaccinated to the disease to which they are now exposed or in those patients whose immune status to the disease is unknown. In the case of BayTet, this medication is used in patients with a tetanus prone wound who have not received a tetanus "booster" within the previous 5 years. Methods of Acquiring Active Immunity There are only two ways to acquire active immunity. One is by getting the disease naturally 1
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Immunities which quickly produces the greatest amounts and the most efficient antibodies. The risks associated with this are great, however, and there is no guarantee that it can be controlled and predicted. The other way to acquire active immunity is by the stimulation of an individual's immune system through the injection of vaccines. CLASSIFICATION OF VACCINES
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This note was uploaded on 05/19/2011 for the course NURSING 517/617 taught by Professor Lipstate during the Spring '11 term at University of Louisiana at Lafayette.

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test 4 notes 9 - I mmunities Definitions of Immunity...

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