传染性病毒

Some positive news surfaced yesterday: Mexican scientists said the contagiousness of the swine flu is no greater than that of the seasonal flu that circulates every year.

昨天有一些正面的消息传出，墨西哥科学家说猪流感病毒的传染性并不比每年流行的季节性流感的传染性更大。

Aim at avian influenza, Newcastle disease, infective bronchitis, infectious laryngotracheltis, fowl pox etc.

Indications：针对禽流行性感冒、新城疫、传染性支气炎、传染性喉气管炎、鸡痘等病毒病。

One is a genetic recombinant virus (rFPV-ILTV-gB) vaccine--Avian Infectious Laryngotracheitis that with one vaccination chicken's Avian Infectious Laryngotracheitis and Fowl pox diseases can be prevented.

项目简介：该项目产品为畜禽基因工程疫苗，其中鸡传染性喉气管炎重组鸡痘病毒基因工程疫苗一次免疫能预防鸡传染性喉气管炎和鸡痘两种疫病。

The research aimed to observe the histopathology of chickens infected with infectious laryngotracheitis virus, providing references for the way to make chicken model on infectious laryngotracheity.

［目的］观察鸡人工感染传染性喉气管炎病毒后气管病理组织学变化，为人工制造鸡传染性喉气管炎病例模型方法研究提供参考。

Infectious bovine rhinotracheitis, bovine herpesvirus-1(BHV-1) infection of cattle, has a wide variety of clinical manifestations, known mainly as a kind of respiratory tract disease characterized by rhinotracheitis, conjunctivitis, fever, abortion, infectious pustular vulvovaginitis.

牛传染性鼻气管炎(infectious bovine rhinotracheitis，IBR)是由Ⅰ型牛疱疹病毒(bovine berpesvirus-1，BHV-1)引起牛的一种以上呼吸道炎症为主的接触性传染病，临床表现多种多样，以鼻气管炎、眼结膜炎、高热、流产、传染性脓疱为主要特征。

Infectious bursal disease is an acute, highly contagious viral infection of young chickens.

鸡传染性法氏囊病是由鸡传染性法氏囊病病毒引起的一种急性、高度接触性传染病。

Infectious bursal disease is an acute, highly contagious viral infection of chickens and turkeys.

传染性法氏囊病(Infectious bursal disease， IBD)是由鸡传染性法氏囊病毒引起的鸡和火鸡的一种高度接触性传染病。

The dynamic changes of the number of T or B lymphocytes and the content of immunoglobulin G, IgM, IgA in peripheral blood, the number of CD〓, CD〓 lymphocyte subpopulation, T〓 cells and IgG, IgM, IgA antibody-producing cells, the ratios of CD〓 and CD〓 T cells in immune organs (thymus, bursa of Fabricius and spleen) and immune tissues (cecal tonsils and Harderian glands), the content of IgA, IgM, IgG in local fluid (tear, tracheal fluid, intestinal fluid and bile) of one-day chicks infected with chicken infectious anemia virus and CIAV-infected chicks immunized with Newcastle disease vaccine were determined respectively by immunohistochemistry, immunogold-silves and immunoenzyme staining in order to reveal mechanism of immunopathogenesis of chicks infected with CIAV and influence of immune responses of CIAV-infected chicks to ND vaccine.

中文题名雏鸡感染鸡传染性贫血病毒后免疫变化和对新城疫疫苗的应答及其免疫机理副题名外文题名 Immune changes of chicks infected with chicken infectious anemia virus and immune response and mechanism to Newcastle disease vaccine immunity 论文作者郑世民导师刘忠贵教授学科专业基础兽医学研究领域\研究方向学位级别博士学位授予单位东北农业大学学位授予日期2002 论文页码总数105页关键词鸡传染性贫血病雏鸡新城疫疫苗馆藏号BSLW /2003 /S858 /9 本项研究采用免疫组织化学、免疫胶体金及免疫酶方法，首次对CIAV感染1日龄雏鸡和CIAV感染雏鸡ND疫苗免疫及vNDV攻击后，其外周血液的T细胞、B细胞数量和IgG、IgM、IgA含量；中枢免疫器官胸腺和法氏囊，外周免疫器官脾脏及呼吸道和消化道局部粘膜免疫组织哈德尔腺和盲肠扁桃体的ANAE〓、CD4〓、CD〓T细胞、IgG、IgM、IgA抗体生成细胞数量和CD〓与CD〓T细胞比值以及泪液、气管液、肠液、胆汁的IgA、IgM、IgG含量的动态变化规律和CIAV感染对ND疫苗的免疫保护率等进行了全面系统地研究。

Molluscum contagiosum virus, pox virus belongs to, such as infection with the human large DNA viruses, the infected cells to replicate, you can auto-inoculation.

传染性软疣病毒，属于痘病毒，如感染人体的大型DNA病毒，在受感染细胞的细胞内复制，可以自体接种。

The causative agent of the disease is an Corona virus, infectious bronchitis virus IBV）, classified as Corona .Present vaccines for IB are all modified live viruses derived either by sequential passage embrocated chicken eggs. As Immunogenicity of IBV is usually correlated with its virulence, almost all modified live IB vaccines remained insufficient attenuation and have shown a variety of side effects including spread of vaccine virus to no vaccinates, occurrence of long term "carrier" birds, and increasing virulence during in vivo passage.

目前国内外预防本病所用的疫苗大多数是弱毒疫苗，但现用弱毒疫苗都存在以下缺点：（1）与IBV强毒一样，其弱毒疫苗株也能引起潜伏感染，潜伏感染的鸡将终生带毒；（2）疫苗病毒可以由接种鸡传染给非接种鸡，在鸡群之间传播过程中毒力会返强，从而成为新的感染源；（3）传染性支气管炎病毒极易发生变异，且易成为病毒重组的供体和受体，给使用IB传统疫苗预防和根除IB带来极大的困难。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。