1. What does the immune response produce ?
- Immunological memory
- Memory cells
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2. If a person has been vaccinated they have what ?
- Active immunity
3. What can the antigenic material used in vaccines be?
- Harmless versions of the pathogenic organism
4. What does the immune system manufacture ?
- Antibodies and memory cells
5. A deliberate exposure to antigenic material which activates the immune system to make an immune response and provide immunity?