Canadian Medical Guide > Biological Sciences > Biological Phenomena, Cell Phenomena, and Immunity > Immunity > Immunity, Natural Terms and Definitions




Immunity, Natural

Medical Definition: The capacity of a normal organism to remain unaffected by microorganisms and their toxins. It results from non-specific mechanisms such as naturally occurring antiviral and bactericidal substances, PHAGOCYTOSIS, and constitutional factors such as BODY TEMPERATURE, oxygen tension, and age.
Guide Notes: coord IM or NIM with specific disease /immunol (IM)
Also Called: Disease Resistance,Resistance, Natural
Previously Indexed: Immunity (1966-1977),specific term/immunology (1966-1977)
Immunity, Natural Categories.
Canadian Medical Guide Definition Blood Bactericidal Activity - The natural bactericidal property of BLOOD due to normally occurring antibacterial substances such as beta lysin, leukin, etc. This activity needs to be distinguished from the bactericidal activity contained in a patient's serum as a result of antimicrobial therapy, which is measured by a SERUM BACTERICIDAL TEST.

Immunity, Natural Medical Definitions and Terms

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