IGCSE Biology Notes: Disease & Immunity
IGCSE biology notes on disease and immunity should define pathogen types, active vs passive immunity, and vaccination in exam-ready sentences.
Hub: IGCSE biology notes · Disease & immunity guide · Diseases exam tips · Human health.
Immunity note page
| Topic | Notes |
|---|---|
| Pathogens | Virus, bacterium, fungus, protoctist — examples |
| Body defences | Skin, mucus, white blood cells |
| Antibodies | Specific to antigen; memory cells |
| Vaccination | Herd immunity bullet; not 100% effective |
| Antibiotics | Bacteria only; resistance mechanism |
Lifestyle link
Smoking, diet, exercise — cross-reference nutrition notes.
Frequently asked questions
HIV in IGCSE?
If on syllabus — virus attacking immune cells; check 0610 topic list.
Mosquito as vector?
Malaria example — one note box.
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