Epidemiological study of neutralizing antibodies in the general population in China.
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aThe titers (vaccinia-neutralizing activity) were determined using the neutralization assay described in Table 1. Arbitrary intervals were established as a qualitative reference for the potency of a determined serum, i.e., negative (100).bthe percentage of positive VTT NAbs increased with age.
创建时间：
2015-12-02
