Characteristics and evolution of induration* following immunization occurring in the study.

*Note: Due to discrepancies in the defining and diagnosing nodules versus induration, all suspected nodules were classified as induration. The word ��knot�� is a literal translation of the mandarin word used to describe the AE.There was no induration reported in the control or 20 ��g dose groups.*注：由于结节（nodule）与硬结（induration）的定义及诊断标准存在差异，所有疑似结节均被归类为硬结。"knot"为描述该不良事件（Adverse Event，AE）所用中文词汇的直译。对照组与20微克剂量组均未报告硬结病例。