The 21st century faces massive problems from microorganisms of all types. AIDS, tuberculosis and malaria are just three of the infectious diseases that continue to kill millions of people each year. Hospital-acquired infection, antimicrobial drug resistance and food-borne diseases are among many other major problems that challenge health care services throughout the world. The 16th edition of this classic text has been fully updated by an international team of expert contributors. All aspects of medical microbiology, including, for the first time, entomology, are covered. There is an extensive and wide-ranging section on immunity to infection. The text combines the principles of 'organism-based' and 'disease-based' teaching by placing the essential 'systematic' chapters firmly within the context of the diseases they cause (including their treatment, epidemiology and control) and by complementing these with individual chapters on practical aspects of infection and its management. Medical microbiology remains central to the practice of medicine and to the training of medical students and other health care professionals. This authoritative, comprehensive and clearly written account of the subject continues to provide unrivalled value to students worldwide.