Introduction

Figure 6.1 The immune system is a complex network of cells, tissues, and organs that work together to protect the body from harmful substances, such as pathogens. (attribution: Copyright Rice University, OpenStax, under CC BY 4.0 license)

Chapter Outline

6.1 Introduction to Immunity

6.2 Vaccine-Preventable Diseases, Vaccines, and Immunizations

6.3 Immunosuppressants, Biologics, Monoclonal Antibodies, and Biosimilar Drugs

6.4 Introduction to the Inflammatory Response and Anti-inflammatory Drugs

The immune system is an intricate defense mechanism that protects the human body from diseases and infection. It uses antibodies and white blood cells to combat foreign invaders such as bacteria and viruses. Maintaining a healthy immune system is essential for overall well-being and resilience against potential harm. This section of the chapter will discuss the immune system and its function, explain antigen-antibody interactions, and compare antibody-mediated and cell-mediated immunity.