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        1 - Evaluation of Diagnostic and Screening Test in Veterinary Medicine
        Mohammad Arad Zandieh Fateme Sheikhian Hamid Sharifi Hesameddin Akbarein
        Screening tests are a special type of diagnostic tests that are performed in an apparently healthy population. The purpose of performing diagnostic tests is to correctly diagnose patients, distinguish affected animals from healthy animals, distinguish between cases and More
        Screening tests are a special type of diagnostic tests that are performed in an apparently healthy population. The purpose of performing diagnostic tests is to correctly diagnose patients, distinguish affected animals from healthy animals, distinguish between cases and controls, and distinguish between normal and abnormal cases. Screening tests should be simple, cheap, rapid and valid. Diagnostic and screening tests are mainly used in the monitoring of diseases. Related terms to the evaluation of these tests, including sensitivity, specificity, positive and negative predictive value, accuracy and precision, as well as concepts such as the golden standard, because they are often used interchangeably or misinterpreted, it is especially important to learn them. Also, due to the fact that gold standard tests are often more expensive and time-consuming, incomplete diagnostic tests are used, which can be calculated by calculating the sensitivity and specificity of the actual and apparent prevalence obtained by the diagnostic test. However, if the golden standard test is not available, other methods are used to evaluate the tests, including the Kappa index test. The interpretation results of these tests provide a comprehensive and evidence-based approach to clinicians and experts, which ultimately leads to more accurate, comprehensive, cheaper and faster monitoring. In this review article, with a complete and comprehensive review of the conventional concepts in the evaluation of diagnostic tests, along with the solution of practical examples, we will expand and provide a comprehensive presentation of these concepts. Also, the latest original studies that have been done in the field of evaluation of diagnostic tests will also be reviewed in this article. Manuscript profile
      • Open Access Article

        2 - Problem-solving and Futures Studies in Veterinary Programs and Services
        Alireza Bahonar Hamid Sharifi
        The increase in population and the need to supply foodstuffs have raised the importance of animal health and veterinary activities more than ever before in the country's food security and development. In this paper, which focuses on veterinary activities in the field of More
        The increase in population and the need to supply foodstuffs have raised the importance of animal health and veterinary activities more than ever before in the country's food security and development. In this paper, which focuses on veterinary activities in the field of food-producing livestock, the concepts of need, supply, and demand are defined, and the methods of determining and prioritizing health needs in the livestock population of the country are presented. In the context of problems in setting priorities, there are also important points such as livestock population statistics, lack of human resources, rapid management changes, economic factors, management considerations, the traditional structure of animal husbandry, insufficient training of producers, and technical health officials of livestock farms, lack of inter-sectoral cooperation and necessary support. From the country's veterinary organization, the lack of sufficient information about diseases and animal health status in neighboring countries, especially Iraq and Afghanistan, and the weakness of border and interprovincial quarantine systems have been noted. Factors affecting the use of animal health services points such as access to services, feeling of need or demand, assurance of quality, price and cost of services and insurance coverage have been mentioned. On the other hand, in recent decades, issues such as climate change, changes in international laws and regulations related to animal health and environment, transgenic products, bioterrorism, and drought, each of which affects the health and livestock production in some way, the need to pay attention to Proposes futures studies. Futures studies are a science that helps to better see these changes and prepare for them. The emergence of some new fields such as artificial intelligence, remote medicine and veterinary medicine (Telemedicine), personalized medicine and veterinary medicine, the emergence of robots in medicine and veterinary medicine, etc. paid attention. The sum of these issues should make us think about how much preparation there is for the future and these changes. It is suggested to make changes in the important fields of veterinary medicine such as education and research, veterinary structures at the national and international levels, and jobs related to veterinary medicine, in line with foresight and futurology. Manuscript profile