预防接种异常反应；后遗症；危险性。
试验前后对照组和试食组均未见不良反应，各项安全性指标均未见异常。
No Adverse effect was observed and every safe index was normal during the experiment.
试验前后对照组和试食组均未见不良反应，各项安全性指标均未见异常。
No Adverse effect was observed and every safe index was normal during the experiment.
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