Diseases and immunity
- Pathogens and transmission
- Pathogen
- Disease-causing organism
- Transmissible disease
- Passed between hosts
- Direct contact
- Blood
- Body fluids
- Indirect routes
- Surfaces
- Food
- Animals
- Air
- Body defences
- Skin
- Nose hairs and mucus
- Stomach acid
- White blood cells
- Controlling spread
- Clean water
- Food hygiene
- Personal hygiene
- Waste and sewage
- Cholera Supplement
- Contaminated water
- Toxin, chloride ions
- Osmosis, diarrhoea
- Pathogen
- ImmunitySupplement
- Antigens Supplement
- Specific shapes
- Antibodies Supplement
- Proteins
- Complementary shape
- Destroy or mark
- Active immunity Supplement
- Own antibodies
- Infection
- Vaccination
- Vaccination Supplement
- Weakened pathogen
- Lymphocytes
- Memory cells
- Controlling spread Supplement
- Fewer susceptible hosts
- Passive immunity Supplement
- Placenta
- Breast milk
- Short-term
- No memory cells
- Antigens Supplement