نتایج جستجو برای: mareks disease virus
تعداد نتایج: 1808563 فیلتر نتایج به سال:
Introduction: Due to the prevalence of Covid-19 disease in the country, there is a possibility of infecting employees who provide services in different work environments. Our purpose in writing this review article is to assess and analyze studies on the nature of the disease, its causative agent, occupations at risk, and the prevention and control of Covid-19 in the workplace. Materials and Me...
Introduction: Ebola is a viral infection with a high mortality risk and health workers are considered as an at-risk group. The main aim of this study was to determine the knowledge and attitude of health workers about Ebola virus disease (EVD) in Yazd city, Iran. Methods: This cross-sectional study was carried out on 110 health workers in health centres of Yazd city, Iran in 2015, who were sel...
Background and Objective: Novel H1N1 influenza virus is a unique type of influenza virus which has developed due to abrupt structural alterations (Shift and Drift). This virus can lead to a pandemic disease. Since manifestations and severity of this disease may be affected by environmental, cultural and economic factors, therefore this epidemiological and regional study was carried out to revea...
Kawasaki is an acute multisystemic disease with high fever in infants. Kawasaki is an unknown vasculitis that involves small and moderate size arteries especially coronary vessels. Clinical manifestations of Kawasaki are nonspecific and consist of persistant fever for more than 5 days, maculopapular skin rash, mucosal inflamation, bilateral conjunctivitis, neck lymphadenopathy, erythema and...
Bacterial co-infections can probably influence the pathogenicity of H9N2 low pathogenic avian influenza virus (AIV). This study aimed to evaluate the effect of exposure time to Escherichia coli (O:2) on the pathogenicity of H9N2 AIV in broiler chickens. Three hundred and sixty broiler chickens were randomly allocated to six equal groups. At the age of 26 days, all chicks except groups 5 and 6 w...
Introduction: Foot-and-mouth disease (FMD) is a highly contagious and economically devastating viral disease of livestock that is categorized in list A of animal diseases by the World Organisation for Animal Health (OIE). Vaccination is effective against FMD and the vaccine production centers largely use the industrial ultra-filtration and chromatography in order to remove the cellular proteins...
beet necrotic yellow vein virus (bnyvv) is the causal agent of sugar beet rhizomania, disease . in the present study which was conducted in 2005 in shiraz, iran, serological methods (including elisa) were used for detection of disease and screening of disease tolerant germplasm in sugar beet breeding programs. for doing this, iranian isolate of bnyvv was purified and a specific antiserum was p...
Infectious bursal disease virus (IBDV) infects young chickens and causes serious lose to the poultry industry, worldwide. Previous attempts using purified bacterially expressed IBDV VP2 failed to elicit a protective immune response to the virus. This study was designed to investigate if the initial expressed protein contained neutralizing epitopes but became nonfunctional during purification st...
foot and mouth disease (fmd) is a highly contagious viral disease of ruminant which causes fever and postule on mouth, hoof and teat. the main purpose of this study was to determine and charachtrize isolated fmd virus from iran between 2005 - 2006, and to compare it with vaccine virus strains. after preparation of samples, serological test for typing of virus was performed. in order to virus is...
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