Computerized word processing greatly facilitates the achievement of our long-term objective to produce an up-todate review of the field of large-animal veterinary medicine as it is practiced, and the parallel stream of research work into the etiology, epidemiology, pathogenesis, treatment and control of diseases of large animals. We continue to emphasize a good understanding of pathogenesis of each disease, which is important in understanding the rationale for the diagnosis, treatment and control. This means that we strive to maintain an optimum balance between published research and what field veterinarians find useful in their daily work, which necessitates that our authors and contributors maintain a strong contact with clinical work, especially with the clinical techniques and treatment and control measures.
The knowledge base in veterinary epidemiology, particularly risk factors for disease, continues to increase and become more complex. A system of subheadings has been introduced and the material has been rearranged under them in order to simplify the reader's task in locating material in these presentations. A major change for this edition is giving special emphasis to the risk factors for disease, which are so important to the veterinarian in the clinical management and control of disease, particularly on a herd basis. We also continue to include the zoonotic implications of many diseases and how the large animal veterinarian is becoming more involved in the control of diseases transmissible to humans. We also indicate those diseases of concern as agents of bioterrorism. The use of individual diagnostic tests, described under
clinical pathology of each disease, continues to be a challenge for all of us. A very large number of publications deal with the development of laboratory diagnostic tests but most of them have little information on their sensitivity and specificity for diagnostic purposes and will likely never be employed in routine diagnosis. There is also regional and national variation in tests that are used and it is not possible nor desirable to detail these in the book. We have chosen to concentrate on those tests that are accepted through common use, to discuss their limitations if they are known, and to provide a reference to newer tests that have future promise in diagnosis.
The knowledge base in veterinary epidemiology, particularly risk factors for disease, continues to increase and become more complex. A system of subheadings has been introduced and the material has been rearranged under them in order to simplify the reader's task in locating material in these presentations. A major change for this edition is giving special emphasis to the risk factors for disease, which are so important to the veterinarian in the clinical management and control of disease, particularly on a herd basis. We also continue to include the zoonotic implications of many diseases and how the large animal veterinarian is becoming more involved in the control of diseases transmissible to humans. We also indicate those diseases of concern as agents of bioterrorism. The use of individual diagnostic tests, described under
clinical pathology of each disease, continues to be a challenge for all of us. A very large number of publications deal with the development of laboratory diagnostic tests but most of them have little information on their sensitivity and specificity for diagnostic purposes and will likely never be employed in routine diagnosis. There is also regional and national variation in tests that are used and it is not possible nor desirable to detail these in the book. We have chosen to concentrate on those tests that are accepted through common use, to discuss their limitations if they are known, and to provide a reference to newer tests that have future promise in diagnosis.
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