了解长期B和T细胞免疫力对考虑免疫接种后多年再接触者的危险性十分必要,因此,作者研究了2～14前接受过狂犬病疫苗接触前后免疫者的体液和细胞免疫力。 18名研究对象曾在2～14年前接种过人二倍体细胞狂犬病疫苗（HDCV）或纯化的鸡胚细胞培养疫苗（PCECV）,且在第1次接种和采血之间没有接受过加强剂量。同时,作者还选择了18名性别和年龄配对者作为对照 Understanding the long-term B and T cell immunity is necessary to consider the risk of many years of re-exposure after immunization. Therefore, the authors studied the humoral and cellular immunity of pre-and post-rabies immunizations 2 to 14 days prior to rabies vaccination. Eighteen subjects were vaccinated with either a diploid cell rabies vaccine (HDCV) or a purified chicken embryo cell culture vaccine (PCECV) two to 14 years prior to the first vaccination and no blood booster doses . At the same time, the author chose 18 pairs of sex and age as a control