This issue on Diagnostic Testing for Enteric Patholgens is led by two experts in the field of clinical pathology: Alexander J. McAdam and Collette Fitzgerald. Topics include Salmonella, Shigella and Yersinia; Escherichia coli; Campylobacter; Clostridium difficile; Use of markers of intestinal inflammation for diagnosis of infectious gastroenteritis; Antibiotic susceptibility testing of bacteria that cause gastroenteritis; Norovirus; Rotavirus; Intestinal Abebae; Intestinal coccidia and cryptosporidium; Intestinal microsporidia; and Multiplex PCR tests for gastroentieritis. An added features of this issues a Q and A on a controversial area in clinical microbiology, related to STI testing. Several participants from different fields each answer the same series of questions; specialists from clinical laboratory medicine, public health and clinical patient care participate. Each question is introduced by the lead Editors.

This issue of Clinics in Laboratory Medicine, entitled Respiratory Viruses in Pediatric and adult Populations, is Guest Edited by Alexander J. McAdam MD, PhD, and includes: Developments in Specimen Collection and Tissue Culture for Respiratory Viruses; Nucleic acid amplification assays for respiratory viruses; Emerging molecular assays for respiratory viruses; Drug Resistance in Influenza Virus; Quantitative assays for adenovirus; RSV vaccine development; Human Metapneumovirus; and Recently discovered coronaviruses.

Plant anatomy and physiology and a broad understanding of basic plant processes are of primary importance to a basic understanding of plant science. These areas serve as the first important building blocks in a variety of fields of study, including botany, plant biology, and horticulture. "Structure and Function of Plants "will serve as a text aimed at undergraduates in the plant sciences that will provide an accurate overview of complex plant processes as well as details essential to a basic understanding of plant anatomy and physiology. Presented in an engaging style with full-color illustrations, "Structure and Function of Plants" will appeal to undergraduates, faculty, extension faculty, and members of Master Gardener programs.