Bacterial and Protozoal Gastroenteritis

Abstract
IN recent years there have been numerous advances in our understanding of the increasingly varied range of microorganisms that infect the gastrointestinal tract. These agents range from newly identified bacterial pathogens, such as Helicobacter pylori, and a still growing range of types of Escherichia coli to protozoal, algal, and fungal enteric pathogens. This overview will provide an update and a practical approach to the understanding, diagnosis, and management of nonviral infectious diarrhea. It is particularly important to understand the epidemiologic setting and pathogenesis of these infections, because they provide a clinical basis for diagnosis and management. A highly selective . . .