Linking fundamental principles with the diagnosis and treatment of microbial infections, this classic text delivers an essential overview of the roles microorganisms play in human health and illness. In addition to the brief descriptions of the organisms, you'll find vital perspectives on pathogenesis, diagnostic laboratory tests, clinical findings, treatment, and epidemiology. The book introduces you to basic clinical microbiology through the fields of bacteriology, virology, mycology, and parasitology, giving you a far-reaching yet student-friendly review of the discipline. All chapters have been extensively revised to reflect the tremendous expansion of medical knowledge afforded by molecular mechanisms, advances in our understanding of microbial pathogenesis, and the discovery of unusual pathogens.