Succinct and focused, this book presents today's most important facts and information about the microbes that cause diseases in humans. This text delivers balanced coverage of immunology, bacteriology, virology, mycology, and parasitology in a user-friendly and organized format, with an emphasis on teaching the student to think like a doctor. An extensive 4-color art program illustrates the text. The 4th Edition has been meticulously revised and updated to incorporate new knowledge, new treatments, and new illustrations. Immunology section by Rosenthal - can serve as text for student in medical school immunology courses Full colour art program Strong clinical orientation with numerous clinical correlations and case studies with questions - teaches student to think like a doctor and helps instructors integrate clinical material into courses Coloured boxes and summary tables to summarise key information Clinical photographs used to illustrate diseases throughout text Text thoroughly updated to include recent epidemiologic data Spanish version also available, ISBN: 84-8174-610-X Spanish version of 2nd edition also available, ISBN: 84-8174-162-0.