Concerns persist that COVID-19 vaccines could cause antibody-dependent enhancement, which can potentiate viral entry into host cells and worsen disease.

中文翻译：

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冠状病毒疫苗开发人员对错误的抗体持谨慎态度。

人们仍然担心 COVID-19 疫苗可能会导致抗体依赖性增强，这会增强病毒进入宿主细胞并使疾病恶化。