نتایج جستجو برای: ibv vaccine

تعداد نتایج: 109521  

Journal: :Proceedings. Mathematical, physical, and engineering sciences 2013
Jian Xu Engui Fan

We implement the unified transform method to the initial-boundary value (IBV) problem of the Sasa-Satsuma equation on the half line. In addition to presenting the basic Riemann-Hilbert formalism, which linearizes this IBV problem, we also analyse the associated general Dirichlet to Neumann map using the so-called global relation.

Journal: :International Journal of Health Sciences (IJHS) 2022

The present study has been designed to investigate of infectious bronchitis virus (IBV).is a widely distributed poultry disease that large economic impact on industry. Infections the respiratory, reproductive, and renal systems are caused by IBV. avian immune system is capable activating mucosal, humoral, cell-mediated immunity in response future antigen exposure. Currently, live attenuated kil...

2015
hafEz mohamEd hafEz

| Infectious bronchitis virus (IBV) is the causative agent of an acute and highly contagious disease affecting the respiratory, renal and/or reproductive systems of chicken called infectious bronchitis disease. Controlling of this disease needs continuous identification of the circulating strains and genotypes. In the present study, six IBV samples were isolated from different poultry farms loc...

2008
J G Zhu H D Qian Y L Zhang X G Hua Z L Wu

El objetivo del estudio fue analizar la similaridad del gen S1 de 5 nuevas cepas virales del virus de la bronquitis infecciosa (IBV) aislado en Shangai, China, para lo cual se usaron un par de partidores específicos, los cuales fueron designados en base a las secuencias publicadas del gen S del IBV. Los 5 segmentos completos de cDNA del gen S1 fueron amplificados de las 5 cepas aisladas con RT-...

I. Karimi M. Bouzari M. Mahzounieh, S. Iravani T. Zahraei Salehi

Infectious bronchitis (IB) is a very contagious disease caused by a coronavirus (IBV). In chickens, thevirus affects the respiratory, reproductive, and urinary systems. This study was carried out to determine theseroprevalence of anti-IBV antibodies in domestic village chickens. Serum samples of 300 domestic villagechickens from Esfahan (centeral Iran) were collected and examined for the presen...

2014
Christie Chen David M Zuckerman Susanna Brantley Michka Sharpe Kevin Childress Egbert Hoiczyk Amanda R Pendleton

BACKGROUND Infectious bronchitis virus (IBV) is a pathogenic chicken coronavirus. Currently, vaccination against IBV is only partially protective; therefore, better preventions and treatments are needed. Plants produce antimicrobial secondary compounds, which may be a source for novel anti-viral drugs. Non-cytotoxic, crude ethanol extracts of Rhodiola rosea roots, Nigella sativa seeds, and Samb...

2016
István Kiss Tamás Mató Zalán Homonnay Tímea Tatár-Kis Vilmos Palya

Routine molecular diagnostic testing by our laboratory, based on using a primer pair with conservative binding sites on the spike glycoprotein coding sequence, has indicated the recurring of a unique phylogenetic cluster of chicken infectious bronchitis viruses (IBV) in the Middle East since 2010. The nearly full-length S1 subunit of the spike gene phylogeny of selected strains, however, split ...

Journal: :Poultry science 2012
D O Almeida R Tortelly E R Nascimento M A Chagas M I Khan V L A Pereira

Infectious bronchitis is caused by a coronavirus, infectious bronchitis virus (IBV). Infectious bronchitis is an acute and highly contagious disease of economic importance due to the reduction in weight gain observed with infected broilers and the drop in egg quality and production associated with infected laying hens. The presence of deep pectoral myopathy has been associated with IBV variants...

Journal: :Journal of veterinary medicine. B, Infectious diseases and veterinary public health 2004
J-Y Zhou D-Y Zhang J-X Ye L-Q Cheng

One IBV isolate, SC021202, was isolated from the kidneys of the infected young chickens by inoculating embryonated eggs, and its morphology, physiochemical and haemagglutonating properties were detected. Virulence of the isolate SC021202 was determined with specific pathogen-free (SPF) chicken inoculation. Nucleotide acid sequence of S1 gene of the isolate SC021202 was further sequenced and ana...

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