Download or read book Epidemiologic Investigations of Mycobacterium Avium Subspecies Paratuberculosis Infections in Ohio Dairy Herds written by Alecia Larew Naugle and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: The development of effective control programs for Mycobacterium avium subsp. paratuberculosis (MAP), the causative agent of Johne's disease, requires a complete understanding of the epidemiology of this agent in animal populations. The research described herein addresses several aspects of the epidemiology of this infection in dairy cattle. Fecal culture and ELISA results collected from nine Ohio dairy herds involved in Johne's disease testing programs are described, and likelihood ratios for multiple levels of ELISA S/P ratios are calculated using these test records. The likelihood ratios calculated here suggest that the quantitative use of ELISA S/P ratios to predict the infection status of an individual cow from a MAP-infected dairy herd provides the most confidence when S/P ratios are considerably higher than the manufacturer's recommended cut-off value. A prospective study of 55 Ohio dairy herds evaluated the relationships between farm management practices, milk production parameters and fecal cortisol levels. The influence of herd MAP-infection status on fecal cortisol levels was also assessed. Herd, management groups within herds and time of sample collection appear to significantly influence fecal cortisol levels; however, few specific management practices or milk production parameters that consistently influence these values were identified. Production data for individual dairy cows were matched with results for MAP tests in order to compare testday production parameters between cows that were test-positive relative to those that were test-negative for both the ELISA and fecal culture. On a given testday, significant losses in milk production were identified for both fecal culture and ELISA-positive cows relative to test-negative cows. These observations provide additional information for dairy producers to consider as they make culling decisions regarding MAP test-positive cows. Finally, a mail survey comparing the adoption of management practices recommended for Johne's disease control between Ohio dairy herds involved in testing programs relative to those herds that were not testing is described. Results of this survey demonstrate that, even if a producer believed his/her herd was not infected, participation in a testing program was associated with the adoption of management practices recommended for Johne's disease control.
Download or read book Epidemiologic Studies on the Detection and Clinical Risk of Bovine Paratuberculosis on California Dairies written by Roy David Berghaus and published by . This book was released on 2006 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dissertation Abstracts International written by and published by . This book was released on 2003 with total page 778 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Diagnosis and Control of Johne s Disease written by National Research Council and published by National Academies Press. This book was released on 2003-08-13 with total page 243 pages. Available in PDF, EPUB and Kindle. Book excerpt: Johne's Disease is a chronic, progressive intestinal disease caused by infection with Mycobacterium avium subspecies paratuberculosis (Map) that affects primarily ruminant animals. In recent decades there has been growing concern over the lack of effective control of this disease and questions have arisen regarding the possibility that Map infection could be a cause of some cases of Crohn's disease in humans. This report presents a broad outline of the steps that should be taken to control Johne's disease, reduce the spread of Map, and minimize effects of the disease in animals. The report also describes the weaknesses of our current research agenda and provides recommendations for a new research strategy to resolve the question of whether there is a link between Johne's and Crohn's diseases.
Download or read book Johne s Disease written by AR Milner and published by CSIRO PUBLISHING. This book was released on 1989 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt: Johne's disease (paratuberculosis) afflicts cattle worldwide and causes significant economic losses. It is also prevalent in goats and sheep and has been implicated in Johne's disease in humans. The book is divided into six sections covering all aspects of the prevalence, management, diagnosis, control and research on Johne's disease. ]ohne's disease is an international animal health problem, and is of particular importance in the southern States of Australia, especially in the major dairy areas of Victoria where approximately 10% of dairy herds are infected.
Download or read book Index Veterinarius written by and published by . This book was released on 2007 with total page 1304 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dairy 2002 written by and published by . This book was released on 2004 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Public Health Significance of Urban Pests written by Xavier Bonnefoy and published by World Health Organization. This book was released on 2008 with total page 293 pages. Available in PDF, EPUB and Kindle. Book excerpt: The second half of the 20th century and the beginning of the 21st century witnessed important changes in ecology, climate and human behaviour that favoured the development of urban pests. Most alarmingly, urban planners now face the dramatic expansion of urban sprawl, in which city suburbs are growing into the natural habitats of ticks, rodents and other pests. Also, many city managers now erroneously assume that pest-borne diseases are relics of the past. All these changes make timely a new analysis of the direct and indirect effects of present-day urban pests on health. Such an analysis should lead to the development of strategies to manage them and reduce the risk of exposure. To this end, WHO invited international experts in various fields - pests, pest-related diseases and pest management - to provide evidence on which to base policies. These experts identified the public health risk posed by various pests and appropriate measures to prevent and control them. This book presents their conclusions and formulates policy options for all levels of decision-making to manage pests and pest-related diseases in the future. [Ed.]
Download or read book Journal of the American Veterinary Medical Association written by American Veterinary Medical Association and published by . This book was released on 2015 with total page 730 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Genome Mapping and Genomics in Animal Associated Microbes written by Vishvanath Nene and published by Springer Science & Business Media. This book was released on 2008-11-24 with total page 253 pages. Available in PDF, EPUB and Kindle. Book excerpt: Achievements and progress in genome mapping and the genomics of microbes supersede by far those for higher plants and animals, in part due to their enormous economic implication but also smaller genome size. In the post-genomic era, whole genome sequences of animal-associated microbes are providing clues to depicting the genetic basis of the complex host-pathogen relationships and the evolution of parasitism; and to improving methods of controlling pathogens. This volume focuses on a globally important group of intracellular prokaryotic pathogens which affect livestock animals. These include Brucella, Mycobacterium, Anaplasma and Ehrlichia, as well as the protozoan pathogens Cryptosporidium and Theileria, for which genome sequence data is available. Insights from comparative genomics of the microbes described provide clues to the adaptation involved in host-microbe interactions, as well as resources potentially useful for application in future research and product development.
Download or read book American Journal of Veterinary Research written by and published by . This book was released on 2013 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volumes for 1956- include selected papers from the proceedings of the American Veterinary Medical Association.
Download or read book Microbial Zoonoses and Sapronoses written by Zdenek Hubálek and published by Springer Science & Business Media. This book was released on 2010-11-25 with total page 459 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the state of art in the field of microbial zoonoses and sapronoses. It could be used as a textbook or manual in microbiology and medical zoology for students of human and veterinary medicine, including Ph.D. students, and for biomedicine scientists and medical practitioners and specialists as well. Surprisingly, severe zoonoses and sapronoses still appear that are either entirely new (e.g., SARS), newly recognized (Lyme borreliosis), resurging (West Nile fever in Europe), increasing in incidence (campylobacterosis), spatially expanding (West Nile fever in the Americas), with a changing range of hosts and/or vectors, with changing clinical manifestations or acquiring antibiotic resistance. The collective term for those diseases is (re)emerging infections, and most of them represent zoonoses and sapronoses (the rest are anthroponoses). The number of known zoonotic and sapronotic pathogens of humans is continually growing − over 800 today. In the introductory part, short characteristics are given of infectious and epidemic process, including the role of environmental factors, possibilities of their epidemiological surveillance, and control. Much emphasis is laid on ecological aspects of these diseases (haematophagous vectors and their life history; vertebrate hosts of zoonoses; habitats of the agents and their geographic distribution; natural focality of diseases). Particular zoonoses and sapronoses are then characterized in the following brief paragraphs: source of human infection; animal disease; transmission mode; human disease; epidemiology; diagnostics; therapy; geographic distribution.
Download or read book Index Medicus written by and published by . This book was released on 2003 with total page 2268 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vols. for 1963- include as pt. 2 of the Jan. issue: Medical subject headings.
Download or read book Veterinary Clinical Epidemiology Third Edition written by Ronald D. Smith and published by CRC Press. This book was released on 2005-09-07 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: While veterinary medicine has always valued the concepts and methods of epidemiology, they are virtually inseparable in today’s clinical practice. With access to an ever-expanding number of journals, as well as countless Internet sources, more and more veterinarians are practicing evidence-based medicine. This is defined as the process of systematically finding, appraising, and adopting research findings as the primary basis for clinical decisions. “An underlying premise of the book is that patient-based research is epidemiologic research....It logically follows that the users of this information, veterinary students and practitioners, be skilled in its application to patient care.” – from the preface Veterinary Clinical Epidemiology, Third Edition focuses on developing a deeper understanding of epidemiology and exemplifies how an improved capacity for interpreting and critiquing available literature ultimately leads to improved patient care. In preparing this edition, Ronald Smith, a highly respected epidemiologist, practitioner, and educator, has entirely updated his earlier work to reflect those changes that have dramatically altered the practice of veterinary medicine over the last ten years. New to the third edition: · Numerous updated examples of the application of epidemiology in clinical practice · Expanded journal representation to include a larger selection of international research · Increased coverage of hypothesis testing, survey design, sampling and epidemiologic conceptsrelated to the practice of evidence-based medicine · Revised and updated information on diagnostic testing, risk assessment, causality, and the use of statistics Veterinary Clinical Epidemiology, Third Edition provides practitioners and researchers with the knowledge and tools to understand, critically assess, and make use of the medical literature that is vital to the treatment of animal patients.
Download or read book The Connections Between Ecology and Infectious Disease written by Christon J. Hurst and published by Springer. This book was released on 2018-08-30 with total page 329 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book summarizes current advances in our understanding of how infectious disease represents an ecological interaction between a pathogenic microorganism and the host species in which that microbe causes illness. The contributing authors explain that pathogenic microorganisms often also have broader ecological connections, which can include a natural environmental presence; possible transmission by vehicles such as air, water, and food; and interactions with other host species, including vectors for which the microbe either may or may not be pathogenic. This field of science has been dubbed disease ecology, and the chapters that examine it have been grouped into three sections. The first section introduces both the role of biological community interactions and the impact of biodiversity on infectious disease. In turn, the second section considers those diseases directly affecting humans, with a focus on waterborne and foodborne illnesses, while also examining the critical aspect of microbial biofilms. Lastly, the third section presents the ecology of infectious diseases from the perspective of their impact on mammalian livestock and wildlife as well as on humans. Given its breadth of coverage, the volume offers a valuable resource for microbial ecologists and biomedical scientists alike.
Download or read book Night Drives written by Samantha Camargo and published by . This book was released on 2020-07-11 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: Night Drives is a collection of poetry and writing that makes you feel like you're on a night drive.. the kind with the windows down, music up, and the night sky above you. The kind that slowly opens you up, allowing you to feel all of the emotions you've been holding in for so long and somehow helps you feel alive again. The kind that helps you appreciate the night sky again.
Download or read book Neosporosis in Animals written by J.P. Dubey and published by CRC Press. This book was released on 2017-07-12 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: Key features: Written by the scientist who named this parasite and was the first to set up proper diagnostic techniques Serves as the first ever book to provide information on the parasite structure, biology, pathogenesis, clinical signs, epidemiology, prevention, and control of neosporosis Covers both approaches toward preventing & controlling this disease: Developing an efficacious vaccine and sound cattle management practices Contains a wealth of illustrations, including many of the author's original photographs of the parasite Provides basic information on immunologic and molecular aspects of the disease Abortion is a worldwide problem in the livestock industry accounting for annual economic losses of billions of dollars, and N. caninum is a major cause of it. Neosporosis is a newly recognized disease of animals. Until 1988 it was misdiagnosed as toxoplasmosis. Considerable progress in understanding the biology of neosporosis has been made in the last 30 years, resulting in more than 2,000 scientific publications. The economic importance of abortion in cattle, and the availability of knowledge, reagents, and technology used to study toxoplasmosis, have contributed to the rapid progress in understanding the biology of neosporosis. Written by pioneers in this field, Neosporosis in Animals presents a comprehensive summary of the biology of neosporosis, starting with chapter 1 on the historical background of the discovery of the disease. Subsequent chapters deal with general aspects of the biology of N. caninum (chapter 2), techniques (chapter 3), and the disease caused by this parasite in cattle (chapter 4), dogs (chapter 5), and all other animals including sheep, pigs, primates and humans (chapters 6-18). This book provides, for the first time in a single authoritative source, a complete account of the structure, biology, clinical disease, diagnosis, epidemiology, treatment, attempts at immunoprophylaxis, and control in all hosts. There are 175 illustrations and tables devoted to the life cycle, structure of parasitic stages, and lesions. More than 2100 references are cited, allowing the reader to locate additional information on specific topics in an efficient way. This book will be useful to a broad range of researchers in biology and veterinarians.
