نتایج جستجو برای: lasota

تعداد نتایج: 220  

Journal: :Virology 2006
Nobuko Wakamatsu Daniel J King Bruce S Seal Siba K Samal Corrie C Brown

The effect of mutations of Newcastle disease virus (NDV) fusion (F) gene, hemagglutinin-neuraminidase (HN) gene, and phosphoprotein (P) gene and HN chimeras between the virulent Beaudette C and low virulence LaSota strains on pathogenesis and pathogenicity was examined in fully susceptible chickens. A virulent F cleavage site motif within a LaSota backbone increased pathogenicity and severity o...

Journal: :The Journal of general virology 1999
O de Leeuw B Peeters

We have completely sequenced the genome of Newcastle disease virus (NDV) vaccine strain LaSota. The sequences of the 3'- and 5'-terminal ends of the RNA genome were determined by sequencing cDNA fragments generated by rapid amplification of cDNA ends. The entire genomic sequence, which was established by sequencing cDNA fragments generated by high-fidelity RT-PCR, consists of 15186 nt. Comparis...

Journal: :The Journal of general virology 2016
Vinoth K Manoharan Sunil K Khattar Anandan Paldurai Shin-Hee Kim Siba K Samal

Newcastle disease is a highly contagious and economically important disease of poultry. Low-virulence Newcastle disease virus (NDV) strains such as B1 and LaSota have been used as live vaccines, with a proven track record of safety and efficacy. However, these vaccines do not completely prevent infection or virus shedding. Therefore, there is a need to enhance the immunogenicity of these vaccin...

2015
Kiarash Roohani Sheau Wei Tan Swee Keong Yeap Aini Ideris Mohd Hair Bejo Abdul Rahman Omar

A Newcastle disease virus (NDV) isolate designated IBS002 was isolated from a commercial broiler farm in Malaysia. The virus was characterised as a virulent strain based on the multiple basic amino acid motif of the fusion (F) cleavage site (112)RRRKGF(117) and length of the C-terminus extension of the hemagglutinin-neuraminidase (HN) gene. Furthermore, IBS002 was classified as a velogenic NDV ...

2013
GARY FROYLAND

We establish stability of random absolutely continuous invariant measures (acims) for cocycles of random Lasota-Yorke maps under a variety of perturbations. Our family of random maps need not be close to a fixed map; thus, our results can handle very general driving mechanisms. We consider (i) perturbations via convolutions, (ii) perturbations arising from finite-rank transfer operator approxim...

2015
Dan Xiong Li Song Zhiming Pan Xiang Chen Shizhong Geng Xinan Jiao

Toll-like receptor 7 (TLR7) is activated by single-stranded RNA and synthetic imidazoquinoline components, and induces interferon production. In this study, we cloned the TLR7 gene from King pigeon (Columba livia). The TLR7 open reading frame is 3144 bp and encodes a 1047-amino acid protein, consisting of a canonical TLR composition with 15 leucine-rich repeats (LRRs). Amino acid-inserting modi...

2006
ZHENG ZHOU ZHENGQIU ZHANG

Using a fixed point theorem in cones, we obtain conditions that guarantee the existence and attractivity of the unique positive periodic solution for a discrete Lasota-Wazewska model.

Journal: :Journal of clinical microbiology 2008
Zhuo-Ming Qin Lei-Tao Tan Huai-Ying Xu Bao-Chen Ma You-Ling Wang Xiao-Yuan Yuan Wen-Jun Liu

Thirty Newcastle disease virus (NDV) strains isolated from outbreaks in China during 1996 to 2005 were characterized pathotypically and genotypically. All strains except one were velogenic. An analysis of the variable region (nucleotides 47 to 420) of the F gene indicated that 6 isolates belonged to genotype II, 3 to genotype III, 1 (isolated from a pigeon) to genotype VI, and 20 to genotype VI...

2016
Jie Zhu Shunlin Hu Haixu Xu Jingjing Liu Zhenzhen Zhao Xiaoquan Wang Xiufan Liu

BACKGROUND Newcastle disease (ND) is one of the most contagious and devastating diseases to poultry in the world. The causative agents are virulent strains of Newcastle disease virus (NDV), which belong to the genus Avulavirus, sub-family Paramyxoviridae, family Paramyxovirinae. Knowing the genomic and antigenic characteristics of virulent NDVs might contribute to ND control in China. RESULTS...

Journal: :Journal of the South African Veterinary Association 2014
Elizabeth M d S Schmidt Ivan F C Santos António C Paulillo Gislaine R V Martins Janine Denadai Ivan M Lapela

The effects of vaccination on avian blood parameters are poorly understood. The present study was designed to evaluate whether different strains (Ulster 2C, B1, live LaSota and inactivated LaSota) of Newcastle disease vaccines had an effect on the haematological profile of female turkeys. Seventy-five female turkeys were allocated to treatment groups according to vaccination strain. All the bir...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید