乙型流感病毒

结果还提示，乙型流感病毒的演变同时受到很强的正选择与负选择的作用，而以前人们认为选择对乙型流感病毒的演变作用甚微。

Results also showed that the evolution of influenza B virus was under both strong positive selection and negative selection , which was contrary to previous reports .

在大量临床样本的基础上，本论文成功筛选到一株乙型流感病毒Vero细胞适应株，且能达到高产，稳定的目的。

In this study , an influenza B virus strain which is adapted to Vero cells and can be used to achieve stable and large scale production was selected from large number of clinical samples .

多重荧光定量RT-PCR同时检测甲型乙型流感病毒

Simultaneous detection of influenza viruses A and B by multiplex real-time fluorecence quantitative PCR

对甲、乙型流感病毒及腺病毒4型的抑制指数（TI）分别为2、2、1.9。

The TI index on type A and B influenza virus and type 4 adenovirus were 2,2 and 1.9 respectively .

结果应用此多重反转录PCR系统可以特异的同时检测到同一模板中的肠病毒、腺病毒、甲型流感病毒和乙型流感病毒。

Results : Enterovirus , adenovirus , influenza A and B viruses in the one sample could be detected simultaneously in the multiplex PCR system .

甲型和乙型流感病毒通过红血球凝聚素（HA）蛋白与宿主细胞表面糖脂或糖蛋白上的唾液酸寡糖结合。

Influenza A and B viruses bind to sialyloligosaccharides on host cell surface glycolipids or glycoproteins via the hemagglutinin ( HA ) protein .

结论通过与单一的PCR对比，证明该多重反转录PCR系统可替代单一的PCR用于肠病毒、腺病毒、甲型流感病毒和乙型流感病毒引起的呼吸道感染的快速诊断。

Conclusion : The single-tube multiplex reverse transcription-PCR system can be used in the assistant diagnosis of respiratory tract infection caused by enterovirus , adenovirus , influenza A and B viruses .

实验室血清IgM检测结果：军团菌16.88%，乙型流感病毒15.58%，支原体11.68%。

The positive serological IgM antibody for legionella was 16 . 88 % for flu was 15.58 % and for mycoplasmal was 11.68 % .

北京地区2005~2006年流感病原监测结果与乙型流感病毒HA1序列分析

Influenza surveillance and molecular characterization of influenza B viruses during 2005 ~ 2006 in Beijing

福州市2006～2007年乙型流感病毒HA1基因特性的研究

Study on characterization of HA1 gene of influenza B virus between 2006 and 2007 in Fuzhou

目的了解1990～2000年间我国乙型流感病毒HA1基因的演变特征。

Objective To characterize HA1 gene of influenza B virus circulated in 1990 through 2000 in China .

结果：2003~2005年6月共分离到乙型流感病毒22株，血清学鉴定结果除2株为Victoria系的毒株以外，其余20株均为Yamagata种系。

Results : 22 influenza B viruses were obtained from 2003 to June 2005 , including 2 of Victoria-lineage and 20 of Yamagata-lineage .

三个地区报告的中、小学校疫情，经病毒分离和血清抗体（HI）检测，其中两地均可确定为乙型流感病毒引起的局部小流行。

Of the reported epidemic situations occurring in the primary and middle schools in the three areas , the epidemics in two of the areas were identified through viral isolation and detection of serum antibody ( HI ) as a local prevalence caused by influenza B virus .

方法：用多重逆转录聚合酶链反应连接多重聚合酶链反应扩增甲1、甲3和乙型流感病毒的HA基因的HA1片段。

Method : Multiplex reverse transcription-PCR and multiplex-PCR were used to amplify and differentiate the hemagglutinin ( HA ) genes of H 1 , H 3 and B influenza virus . Result : Three primer pairs were specific to H 1 ? H 3 and B influenza virus .

然而，乙型流感病毒对这些药物日益具有耐药性。

However , influenza B virus is increasingly resistant to these agents .

我国猪群中抗乙型流感病毒抗体的发现

Detection of Antibody to Type B Influenza Virus in Pig Populations in China

乙型流感病毒疫苗是其重要的组成部分。

Influenza B virus vaccine is an important component of the influenza vaccine .

反向斑点杂交检测甲/乙型流感病毒及其基因分型的方法研究

Genotyping of Influenza Viruses by Reverse Dot Blot Method

用逆转录-聚合酶链反应鉴别甲型和乙型流感病毒感染

Identification of influenza viruses types A and B by reverse transcription polymerase chain reaction

普通棉耳狨猴中乙型流感病毒的分离和鉴定

Isolation and identification of influenza B virus from common cotton - eared marmoset s

结论：宁波市乙型流感病毒大多以散发存在为主，抗原性有一定的漂移。

Conclusion : Influenza B virus is present sporadic and its antigenicity appreciably drifts .

2007年江西省乙型流感病毒流行的分子基础

Molecular Basis of Prevailing of Influenza B Viruses Isolated in Jiangxi Province in 2007

还修正了乙型流感病毒变异速率的计算方法。

Calculation of the variation rate of influenza B virus was revised in this paper .

由维多利亚系乙型流感病毒引起的流感暴发疫情流行病学调查分析

Epidemiological investigation and analysis on the outbreaks of the diseases induced by influenza B virus

近年来，乙型流感病毒也在流感流行中起重要作用。

In recent years the influenza B virus played an important role in the influenza epidemics .

这就是为什么在季节性流感疫苗中仅包括甲型和乙型流感病毒。

That is why only influenza A and B viruses are included in seasonal influenza vaccines .

2001年中国新分离维多利亚系乙型流感病毒的抗原性及基因特性分析

Antigenic and genetic characterizations of Victoria like strain of influenza B viruses isolated in China in 2001

目的筛选与乙型流感病毒BM2蛋白相互作用的蛋白质。

Objective To explore the role of BM 2 protein in the life cycle of influenza B virus .

结论2004～2005年山西省流感流行季节主要以乙型流感病毒为主。

Conclusion Influenza B was the predominant virus type in influenza seasons from 2004 to 2005 in Shanxi Province .

乙型流感病毒是引起季节性流感的局部爆发的主要病原体之一。

Influenza B virus ( IBV ) is one of the pathogens involved in localized outbreaks of seasonal influenza .