Percival, S: Microbiology of Waterborne Diseases

characterizing and predicting the fate and transport of human enteric pathogenic microorganisms in soils, water, and wastewater; development of methods for rapid, sensitive detection of infective enteric viruses in water samples; human pathogen considerations associated with wastewater reuse and biosolids application to land; and the use of indicators for predicting pathogen occurrence and behavior in the environment. Dr. Yates serves as an editor for Applied & Environmental Microbiology, as a member of the Water Science & Technology Board of the National Research Council, and on the USEPA's Science Advisory Board Drinking Water Committee. She is a fellow of the American Association for the Advancement of Sciences, the American Academy of Microbiology, and a National Associate of the National Academies of Science. Dr. Williams currently leads the Oral Microbiology Group based at the School of Dentistry, at Cardiff University, Cardiff, UK. Since Dr. Williams' first degree (Cardiff University), he has worked in the pharmaceutical industry, food microbiology and as an academic researcher. Having completed a PhD at the School of Dentistry in Cardiff on the immunopathogenesis of oral candidosis, Dr. Williams' research has continued within Cardiff University and primarily focuses within the field of Clinical Microbiology with an emphasis on studies involving microbial biofilms. Dr. Williams' research encompasses investigating biofilm susceptibility to antimicrobial agents, expression of virulence factors such as hydrolytic enzyme production, adhesion, and microbial modulation of innate immune responses. Of particular interest has been research into the development of biomaterials (e.g. silicone rubber, acrylic, titanium) to inhibit biofilm formation on medical devices. Dr. Williams is a previous recipient of the Senior Colgate Award (British Society for Oral and Dental Research) and the International Hatton Award (The International Association for Dental Research). Dr. Rachel Chalmers is the director of the Cryptosporidium Reference Unit, Public Health, Wales. Her research includes evaluation of new laboratory methods for Cryptosporidium detection, diagnosis, typing and subtyping, epidemiology and seroepidemiology, risk factors, and prevention. Nick Gray is Professor of Environmental Science at Trinity College Dublin and is a leading academic and researcher in the field of environmental engineering specializing in water and wastewater treatment processes. He has worked closely with the water industry for over 35 years both as a consultant and as a collaborative researcher. He has published a number of books, including Drinking Water Quality (Cambridge University Press), Water Technology (Elsevier), Biology of Wastewater Treatment ( Imperial College Press), The coliform Index and Waterborne Diseases (Spon) and Activated Sludge (Oxford University Press), as well as over 150 research papers. He is the Director of the Water Technology Research Group based in the Centre for the Environment at Trinity College, University of Dublin.