9.4 VACCINES
Vaccines play a crucial role in boosting immunity by introducing a small, harmless piece of a pathogen (antigen) to the body, which triggers a specific immune response. This response prepares the immune system to recognize and fight future infections. Here are some examples:
🖼️ Figure Image Pending Upload
Fig. 9.4: Primary and secondary immune response after different doses of vaccination
Diagram image pending upload by Admin.