This volume on Infectious Diseases in an Encyclopedia of Sustainability Science and Technology (ESST) addresses the needs of health care providers and policy makers as well as scientists and engineers. Most of chapters in this volume deal with infectious diseases that directly affect humans, including the detailed characterization of specific pathogens, how they reproduce, how they are transmitted, and the means available to control, eliminate, or eradicate them. In this revised and updated second edition, the number of human infectious diseases covered has been significantly expanded.