| CWXSP | Coal Workers' X-ray Surveillance Program |
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| HASP | Hospital Admissions and Surveillance Program |
| HSEES | Hazardous Substances Emergency Events Surveillance [system] |
| ISCP | infection surveillance and control program; International Society of Comparative Pathology |
| NEISS | National Electronic Injury Surveillance System |
| immunological memory | <immunology> The systems responsible for the situation where reactions to a second or subsequent exposure to an antigen are more extensive than those seen on first exposure (but See immunological tolerance. The memory is best explained by clonal expansion and persistence of such clones following the first exposure to antigen. (18 Nov 1997) |
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| immunological network | <immunology> The concept due to Jerne that the entire specific immune system within an animal is made up of a series of interacting molecules and cell surface receptors, based on the idea that every antibody combining site carries its own marker antigens or idiotypes and that these in turn may be recognised by another set of antibody combining sites and so on. (18 Nov 1997) |
| immunological paralysis | Lack of specific antibody production after exposure to large doses of the antigen; immunological paralysis disappears when the antigen is eliminated. See: immunologic tolerance. (05 Mar 2000) |
| immunological tolerance | <immunology> Specific unresponsiveness to antigen. Self tolerance is a process occurring normally early in life due to suppression of self reactive lymphocyte clones. Tolerance to foreign antigens can be induced in adult life by exposure to antigens under conditions in which specific clones are suppressed. Note that tolerance is not the same as immunological unresponsiveness, since the latter may be very non-specific as in immunodeficiency states. (18 Nov 1997) |