The development of antimicrobial agents, past, present and future.- Vulnerable shields-the cell walls of bacteria and fungi.- Antimicrobial agents and cell membranes.- Inhibitors of nucleic acid biosynthesis.- Inhibitors of protein biosynthesis.- Antimicrobial drugs with other modes of action.- Attack and defense: drug transport across cell walls and membranes.- The genetic basis of resistance to antimicrobial drugs.- Biochemical mechanisms of resistance...