Natural immunity

{
  "id": "MLC-T-CHM-007777",
  "term": "Natural immunity",
  "field": "Chemistry",
  "definition": "The inherent, non-specific defense mechanisms of an organism against pathogens and foreign substances, present from birth. This system provides immediate protection and does not require prior exposure to a specific antigen to be activated. Components include physical barriers, phagocytic cells like macrophages, natural killer cells, and inflammatory responses.",
  "subject": "Chemistry and Human Health",
  "see_also": [
    "host defense",
    "macrophage",
    "natural killer cell"
  ],
  "references": [
    "PAC, 2012, 84, 1113. 'IUPAC glossary of terms used in immunotoxicology (IUPAC Recommendations 2012)' on page 1219 (https://doi.org/10.1351/PAC-REC-11-06-03)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/natural-immunity/"
}