Describes how, before the advent of vaccines, epidemics of measles, mumps, whooping cough, polio, and other crippling diseases ravaged humanity around the globe, and how that began to change when medical researchers developed the first vaccines, using a portion of a disease germ…
This book describes how, before the advent of vaccines, epidemics of measles, mumps, whooping cough, polio, and other crippling diseases ravaged humanity around the globe, and how that began to change when medical researchers developed the first vaccines, using a portion of a di…