Microbiologists describe the direct detection of pathogens by molecular biological techniques, which are based on the analysis of the nucleic acid content of pathogens, as it is used to test for the presence of pathogenic microorganisms in water. They consider such aspects as recent developments in pathogen detection methods, the microbiology of dental waterlines, possible impacts of climate changes at northern latitudes on waterborne parasitic infections, microcystin MC-LR in Brazilian aquaculture production systems, water as the critical source of Phytophthora species in horticulture and the natural environment, the influence of cyanobacteria and their toxins on human health and the microbiology of drinking water, and waterfowl-environment-Campylobacter inter-relationships at amenity ponds. Annotation ©2010 Book News, Inc., Portland, OR (booknews.com)