The tilers of HBsAg and positive rate of HBV DNA in sera were higher in those with HBV DNA in seminal fluid than in those without HBV DNA, but there were not significant differences among them. 精清阳性者的血清HBsAg滴度与HBVdna阳性率均高于阴性者,但无统计学意义;
Immune serum of rats was maked-up with various strain measles viruses and antigenic ratios between two strains was measured using cross neutralization test, meanwhile NT antibody tilers in the serum of population which obtained from different sources were also measured respectively. 制备麻疹毒株大鼠免疫血清,进行交叉中和试验,测定各毒株之间的抗原比:对不同来源的人群血清测定中和抗体滴度;