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各国激烈竞逐新冠疫苗，谁能率先胜出？
source link: https://tech.sina.com.cn/d/f/2020-06-22/doc-iircuyvi9753079.shtml
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来源：知识分子6月16日，由中国生物武汉生物制品研究所等单位研制的新冠病毒灭活疫苗，其Ⅰ/Ⅱ期临床试验揭盲会在北京、河南两地同步举行。试验结果显示，疫苗接种后安全、有效，受试者100%产生了抗体。虽然结果令人鼓舞，不过我们应保持谨慎的乐观，
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