This A-Z encyclopedia covers all aspects of infectious diseases and their prevention, offering historical and technical background with a balanced discussion of discoveries, developments, and prognoses. This updated edition includes essays on pathogens and pathogenicity, transmission, the immune system, vaccines, diagnosis, prevention, treatment, drug resistance, epidemiology, history, organizations, research, and social concerns such as aging, poverty and disease, children and disease, stress, quarantine, and bioterrorism. The essays, written for non-specialists by medical professionals, professors in science and medicine, and medical writers, will interest science and premedical, epidemiology/public health, and global and tropical medicine students, public library patrons, and librarians building collections in science and medicine. Includes glossary, bibliography, and lists of resources, professional journals, Web resources, and pharmaceuticals categorized by type of drug.<\\P>