论文部分内容阅读
揭开流感的面纱 流行性感冒(简称流感)是由流感病毒引起的急性呼吸道传染病。流感病毒为RNA病毒。病毒颗粒由三层结构组成,外层为两种突起的表面抗原,一种是血凝素(HA),另一种是神经氨酸酶(NA),中间层是类脂体和膜蛋白;核心有8个单股(RNA)与核蛋白(NP)和三个多聚酶蛋白缠绕在一起。流感病毒分甲型、乙型、丙型,甲型常以流行的形式出现,能引起世界性大流行,乙型常引起局部暴发,丙型主要以散发形式出现。在流感流行中,起主要作用的是甲型病毒,它是目前导致流
Unveil the veil of flu Influenza (flu) is an acute respiratory infection caused by the flu virus. The flu virus is an RNA virus. The virus particles consist of a three-layer structure with two protruding surface antigens on the outer layer, one is hemagglutinin (HA), the other is neuraminidase (NA) and the middle layer is a lipid and membrane protein; The core has 8 single strands (RNA) and nucleoprotein (NP) and three multi-enzyme protein wound together. Influenza virus sub-A, B, C, A often appear in the popular form, can cause a worldwide pandemic, B often lead to local outbreaks, mainly in the form of C emission. In the flu epidemic, the major role played by the virus is that it is currently causing the flow