Brown P, Gajdusek D C, Morris J A
Science. 1969 Oct 3;166(3901):117-9. doi: 10.1126/science.166.3901.117.
In serums of unusually isolated Pacific islanders whose only exposure to influenza occurred during the era of the 1918 pandemic the residual neutralizing antibody was greatest to the PR/8 and BH strains of human type A influenza virus, significantly lower to swine influenza virus, and absent to equine or later human type A virus strains. The pandemic virus was thus antigenically closer to human type A strains isolated during the middle 1930's than to other known influenza virus types.
在仅在1918年大流行期间接触过流感的与世隔绝的太平洋岛民的血清中，残留中和抗体对人甲型流感病毒的PR/8和BH毒株最强，对猪流感病毒明显较低，对马流感病毒或后来的人甲型病毒毒株则不存在。因此，该大流行病毒在抗原性上与20世纪30年代中期分离出的人甲型毒株比与其他已知流感病毒类型更接近。
