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It is important to note that the principles of veterinary epidemiology are identical to those of human epidemiology, with the exception that these principles are applied to animal populations rather than human populations. As such, veterinary and human epidemiology can be viewed as forms of the same discipline.<br>
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The principles of veterinary epidemiology are identical to those of human epidemiology, with the exception that they are applied to animal populations rather than human populations. As such, veterinary and human epidemiology can be viewed as forms of the same overarching discipline of epidemiology.<br>
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Epidemiology is principally concerned with the investigation of disease within populations (although the same principles are also applicable to investigation of other characteristics, such as animal welfare or productivity), and is based on the concept that disease often does not occur in a random fashion. That is, various characteristics of the animal, the pathogenic agent (or agents) and the environment interact in order to alter the probability of disease occurrence.<br>
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Epidemiology is principally concerned with the investigation of disease within populations (although the same principles are also applicable to investigation of other characteristics, such as animal welfare or productivity), and is based on the concept that disease often does not occur in a random fashion. That is, various characteristics of the animal, the pathogenic agent (or agents) and the environment interact in order to alter the probability of disease occurrence. Epidemiology aims to identify these factors and to describe disease in the population.<br>
    
This view of disease at the population level differs from the approach traditionally taken by veterinary practitioners, who are principally concerned with the health status of the individual animal. However, in recent years, epidemiological principles are increasingly being applied in clinical practice, whether it be in the use of [[Evidence-Based Veterinary Medicine]], in order to ensure that appropriate scientific methodology is applied in the  treatment of individual animals, or through the use of aggregated animal data in the form of [[Herd Health Plans]] to advise on measures which can be applied at the farm level. Epidemiology is also an integral component of many [[Veterinary Public Health | Public Health]] and animal health programmes. <br>
 
This view of disease at the population level differs from the approach traditionally taken by veterinary practitioners, who are principally concerned with the health status of the individual animal. However, in recent years, epidemiological principles are increasingly being applied in clinical practice, whether it be in the use of [[Evidence-Based Veterinary Medicine]], in order to ensure that appropriate scientific methodology is applied in the  treatment of individual animals, or through the use of aggregated animal data in the form of [[Herd Health Plans]] to advise on measures which can be applied at the farm level. Epidemiology is also an integral component of many [[Veterinary Public Health | Public Health]] and animal health programmes. <br>
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Patterns of disease occurrence can often give useful clues as to which factors may be affecting the health of the population, based on the principle that disease often does not occur randomly (that is, different factors interplay in order to produce disease). Epidemiologists therefore commonly investigate disease in terms of the following questions:
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Patterns of disease occurrence can often give useful clues as to which factors may be affecting the health of the population, through asking the following questions:
* Which animals are affected?
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* '''Which''' animals are affected?
* Where are the affected animals located?
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* '''Where''' are the affected animals located?
* When did the animals become affected?
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* '''When''' did the animals become affected?
This concept is often described as ''''animal, place, time'''', which provides a very useful structure to follow in any epidemiological investigation. Epidemiologists will often work with members of other disciplines, such as economists, virologists, bacteriologists, ecologists, pharmacologists, pathologists and politicians when evaluating appropriate methods of investigating and/or controlling diseases in populations.
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This concept is often described as ''''animal, place, time'''', and it provides a very useful structure to follow in any epidemiological investigation. Epidemiologists also play a key role in bringing together other disciplines when investigating disease, and will often work with economists, virologists, bacteriologists, ecologists, pharmacologists, pathologists, politicians, amongst others, when evaluating appropriate methods of investigating and/or controlling diseases in populations.
    
[[Category:Veterinary Epidemiology - General Concepts|A]]
 
[[Category:Veterinary Epidemiology - General Concepts|A]]
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