Part 6 · Communicable Disease Epidemiology, Surveillance and Immunisation
Same concept, other depth: Foundation →
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| Active | Passive | |
|---|---|---|
| Natural | After infection | Maternal IgG across placenta; IgA in breast milk |
| Artificial | Vaccination | Immunoglobulins (HRIG/ERIG, TIG, HBIG, VZIG), antitoxins (DAT), monoclonals |
| Onset / duration | Slow / long, with memory | Immediate / weeks–months, no memory |
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