Immunity, Natural |
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| Resistance, Disease; Immunity, Non Specific; Innate Immunity; Native Immunity; Natural Immunity; Natural Resistance; Non-Specific Immunity | |
| 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. | |