【摘要】 用单扩溶血、血凝抑制、神经氨酸酶抑制、株特异补结和鸡胚中和试验证明,我国猪群血清中存在抗乙型流感病毒抗体,从而证实猪可能是所有型别流感病毒的天然宿主;少数猪可同时感染两种型别或亚型毒株,但其感染率不同;人群中已消失的毒株查不到相应抗体;病毒分离率有季节特点,均在冬春季分离到;猪乙型流感病毒与甲、丙型相似,可能是人传给猪的。更多还原

【Abstract】 The present paper describes the detection of antibody to influenza B virus in pig populations in Guizhou,China. Results suggested that pigs could be the natural host for all types of influenza virus and in a few pigs might be infected two different types or subtypes of influenza virus. The infection rate in pigs was different among different types or subtypes. The infection rate of H3N2 was about 14% and those of type B and C about 1 %, No antibody was detected against strains having disappeared in human populations. Meanwhile, only H3N2 viruses were isolated from 2.5% of pig lung and trachea, all isolates having been obtained in winter and spring seasons. Antibody tests with different Strains of infuenza B virus pointed out that like type A and C influenza viruses, in fluenza B virus in pigs might possibly be transmitted trom human due to closer human contact.更多还原