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China has been giving potential vaccine to key workers since July
Published on: 2020-08-25
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vaccine 01China has been giving doses of a COVID-19 vaccine candidate to "high risk" groups, including medical personnel, since late July, even though the clinical trials of the vaccine that would show whether it works have not been completed.

Over the weekend, Chinese health officials said the country had approved the emergency use of the vaccine, developed by the Beijing-based drug company Sinopharm, on July 22. Medical workers, customs and border officials and others at high risk of COVID-19 exposure are eligible to receive the vaccine.

Officials added that they hope to expand the use of this vaccine to other essential workers in the fall and winter.

China has already approved a different vaccine candidate, developed, in part, by the Tianjin, China-based company CanSino Biologics, for use in military personnel. Doses of that vaccine have been given to military personnel since June.

However, no COVID-19 vaccine candidates have completed phase 3 clinical trials. Only phase 3 trials, which often include tens of thousands of people, can determine whether a vaccine actually prevents COVID-19 infection. Such trials are a critical step in vaccine development, and longstanding U.S. regulations would require a completed phase 3 trial before a COVID-19 vaccine could be approved here. The U.S. Food and Drug Administration has said that a COVID-19 vaccine should reduce the chances of infection by at least 50%, compared with a placebo.

我国已于7月22日正式启动新冠疫苗紧急使用

国家卫生健康委科技发展中心主任、国务院联防联控机制科研攻关组疫苗研发专班工作组组长郑忠伟在节目中表示,我国已于7月22日正式启动新冠疫苗的紧急使用。

《疫苗管理法》明确规定,当出现特别重大公共卫生事件,由国家卫生健康委提出紧急使用疫苗的申请,由国家药监局组织专家论证并同意,由国家卫生健康委在一定范围、一定时限内紧急使用疫苗。目的是在医务人员、防疫人员、边检人员以及保障城市基本运行人员等特殊人群中,先建立起免疫屏障,整个城市的运行就会有稳定的保障。

新冠疫苗Ⅲ期临床试验入组超2万人

Ⅲ期临床研究,是关乎疫苗能否上市进行大规模人群接种的重要一步。国药集团中国生物董事长、国家“863”计划疫苗项目首席科学家杨晓明表示,6月23日,中国生物新冠灭活疫苗国际临床(Ⅲ期)阿拉伯联合酋长国启动仪式在中国北京、武汉、阿联酋阿布扎比三地,以视频会议方式同步举行。截至目前,入组接种人数已超过2万人,并创造了多个全球第一;安全性非常好,有效性正在进一步观察中;入组速度好于预期,非常值得期待。

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