This seventh edition is a considerably updated and comprehensive textbook covering the broad and exciting area of a key pharmaceutical science. The topics covered range from the fundamental aspects of pathogens of pharmaceutical significance through the clinical implications of infection, contamination and their eradication to biotechnological and immunological applications. Expanded coverage of modern biotechnology, including genomics and recombinant DNA technology, and newer antimicrobial agents and their mode of action. Highly illustrated with structural formulas of organic compounds and flow diagrams of biochemical processes.