The Chinese Center for Disease Control and Prevention is thinking about mixing vaccines and varying the sequence of doses to boost efficacy. It is the first time a government body has discussed publicly that there are concerns over the effectiveness of Chinese jabs.
中國疾病預防控制中心正在考慮混用不同疫苗、多種疫苗序貫交替接種，以提高疫苗保護效率。這是政府機構首次公開討論圍繞中國疫苗有效率的關切。
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