نتایج جستجو برای: mareks disease virus
تعداد نتایج: 1808563 فیلتر نتایج به سال:
Introduction: Zika virus was identified in Uganda in the Zika Forest in 1947. It is a tropical disease transmitted by mosquito which is similar to Dengune virus, the western Nile virus and yellow fever. While the virus does not cause the illness in mosquitoes, feeding mosquitoes from the blood of the patients transmit virus to the healthy subjects. The prevalence of the virus was limited to Afr...
Background: Respiratory virus infections represent a major public health problem because of their worldwide occurrence, ease of spread in the community and considerable morbidity and mortality. They are one of the most common reasons for hospitalization of children under the age of six. In some cases, infection with two different viruses increase the severity of disease which lead to the h...
Introduction: In the recent months, the world has been exposed to a serious and evolving threat called the Corona virus disease 2019. A virus that did not take more than a month to become a pandemic disease and it has infected the whole world with its contagion. The virus, which originated in the Chinese city of Wuhan, quickly infected millions of people around the world. As a result, borders w...
Experimental infection of Muscovy ducks with V4 strain of Newcastle disease virus was undertaken to determine the response of the ducks to the virus and the possibility of virus transmission to ducks and chickens in village like conditions. Twelve ducks were randomly and equally divided into three groups of control, inoculated and in-contact. Additionally, the chickens were placed into two grou...
On June 2005, a respiratory disease was observed in the chickens of a large broiler farm in Kermanshahprovince, west of Iran. Relatively severe respiratory signs started with sneezing at 27 days of age. Thedisease lasted up to the end of fattening period and accompanied by increased mortality (13.6%). At postmortemexamination, tracheitis, airsacculitis and pneumonia were obvious. Serologic exam...
Duck beak atrophy and dwarfism syndrome (BADS) is a newly emerged disease in China since 2015. In October 2017, an unidentified disease occurred in Cherry Valley ducks, Chongqing municipality, the southwest of China. The affected birds showed short beak and growth retardation clinical signs. The disease caused approximately 20.00% morbidity and serious weight loss due to retarded growth. In ord...
Background and Aims: Newcastle disease virus (NDV) is an avian paramyxovirus (A-PMV 1) and one of the major pathogens in poultries. Vaccination is intended to control the disease, nevertheless this virus is a growing threat to the poultry industry. So, early detection of the virus can prevent the spread of illness and avoid huge economic losses. Towards this goal, in this research, we develop...
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during 2010-2011, real-time pcr procedure was used to detecting fmdv rna on 147 epithelium samples from the field. in this survey, for real-time pcr from 3d gene segment as conserve region selected for tracking all of seven serotypes fmdv. the assay detected the viral rna in all serotypes of fmdv. the rrt-pcr specifically detected fmd virus in sample with greater sensitivity than our convention...
dear editor, the world health organization (who) has announced the 2014 outbreak of ebola virus as an international public health emergency.[1] this outbreak originated in guinea in the month of march, and gradually involved five nations in the west africa (viz. sierra leone, liberia, nigeria, senegal, and the democratic republic of congo).[2] the outbreak was caused by the zaire species of ebo...
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