نتایج جستجو برای: viral and contagious diseases
تعداد نتایج: 16893633 فیلتر نتایج به سال:
to improve commercial grapevine cultivars, it is necessary to apply such methods that by cultivation of a certain number of vines in a certain area, higher yield could be harvested. to achieve such a goal, healthy stocks with resistant to pests and diseases, high fructification and high quality of vines are needed. all these properties can be obtained successfully through clonal selection. viti...
This paper proposes a test for the existence and degree of contagious presenteeism and negative externalities in sickness insurance schemes. First, we theoretically decompose moral hazard into shirking and contagious presenteeism behavior and derive testable conditions. Then, we implement the test exploiting German sick pay reforms and administrative industry-level data on certified sick leave ...
هدف: پیشگیری از بیماری های واگیر دار عامل مهمی در کنترل بیماری در جامعه و ارتقاء سطح سلامت فرد وجامعه به حساب می آید. زگیل های تناسلی یکی از شایع ترین بیماری های مقاربتی به حساب می آید به همین منظور به دلیل عدم شناخت روش های پیشگیری مناسب بر آن شدیم تا ریسک فاکتور بروز این بیماری بررسی کنیم تا شاید به وسیله آن بتوان از میزان بروز آن کاهش داد. مواد وروش ها:مطالعه حاضر یک مطالعه case-control است...
چکیده ندارد.
Acute contagious respiratory disease (kennel cough) is commonly described in dogs worldwide. The disease appears to be multifactorial and a number of viral and bacterial pathogens have been reported as potential aetiological agents, including canine parainfluenza virus, canine adenovirus and Bordetella bronchiseptica, as well as mycoplasmas, Streptococcus equi subsp. zooepidemicus, canine herpe...
Infectious bursal disease (IBD) is an acute, highly contagious and immunosuppressive poultry disease caused by IBD virus (IBDV). The consequent immunosuppression increases susceptibility to other infectious diseases and the risk of subsequent vaccination failure as well. Since the genome of IBDV is relatively small, it has a limited number of proteins inhibiting the cellular antiviral responses...
Emerging diseases are among the greatest threats to honey bees. Unfortunately, where and when an emerging disease will appear are almost impossible to predict. The arrival of the parasitic Varroa mite into the Hawaiian honey bee population allowed us to investigate changes in the prevalence, load, and strain diversity of honey bee viruses. The mite increased the prevalence of a single viral spe...
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