What is a vaccine:
1. Treated bacteria, virus & protein
2. Treated algae
3. Treated fungi
4. Treated plasmodium
Short-lived immunity acquired from mother to foetus across the placenta or through mother's milk to the infant is categorised as:
1. | Active immunity | 2. | Passive immunity |
3. | Cellular immunity | 4. | Innate non-specific immunity |