Security sensitive microbes (viruses, bacteria, fungi, and parasites) and toxins, which are often referred to as the select agents and toxins, have the capacity to cause serious illness and death in humans, animals, and plants.This book is an authoritative and comprehensive review of security sensitive microbes (viruses, bacteria, fungi, and parasites) and toxins, with an emphasis on the state of the art in the field. Written by experts in the field, the chapters present authoritative reviews, each one covering a single microbe or toxin with respect to its classification, biology, epidemiology, pathogenesis, identification, diagnosis, treatment, and prevention. The chapters also discuss the limitations of our current knowledge and challenges relating to improved detection and control of the microbe or toxin.