serologically negative

Positive definition method was used for the ABO blood typing while Rh blood type was determined serologically through saline medium method. At the same time, the Rh phenotypes were investigated in RhD-negative individuals.

对ABO血型采用正定玻片法、Rh血型采用血清学盐水介质法测定，另外对RhD阴性个体检测Rh血型血清学表型。

Objective To study the etiology of serologically negative non A~ E hepatitis.

目的对血清学标志阴性的非甲～戊型肝炎进行病原学研究。

Methods 67 serologically apparent D negative blood samples were tested for Del phenotypes by using adsorption/ elution test and for RhD gene by amplifying exon 3,4,5,7,10 of the RhD gene.

方法对67例血清学方法检测为Rh阴性的供血者样本进行吸收放散试验以检测Del型，并扩增RhD基因的外显子3,4,5,7,10，检测RhD基因存在情况。

Results Of 50 serologically negative Rh ( D), 11 cases were weak D ( Del) and their D gene exon were intact.

结果50例Rh（D）血清学阴性样本中弱D（Del）11例，其D基因外显子均完整。