ABSTRACT

One of the greatest achievements in modern medicine has been the development of vaccines that provide immunity against pathogens by stimulating the body’s immune system to recognize an agent as foreign and by developing “memory” immune responses to reduce the severity of or prevent subsequent infections. This concept of introducing the immune system to agents that mimic speci‡c pathogens was demonstrated over

CONTENTS

14.1 Immunization: A Revolutionary Approach to Treating Diseases ............................283 14.1.1 Types of Vaccines: Advantages and Disadvantages .....................................284