AstraZeneca's Oxford coronavirus vaccine is 70% 平均有效, 数据显示

Drugmaker AstraZeneca announced on Monday that its experimental 新冠病毒 vaccine has shown an average efficacy of 70% 在大规模试验中 — the latest of several vaccine trials worldwide to post their results this month.

The vaccine, developed with the University of Oxford, showed 90% efficacy in one dosing regimenwhen the vaccine was given as a half dose, followed by a full dose at least a month later — 和 62% efficacy in a second regimenwhen two full doses were given at least a month apart.
That averages to a 70% 功效, AstraZeneca said.
The company said in a news release that its vaccine washighly effective in preventing COVID-19, the primary endpoint, and no hospitalisations or severe cases of the disease were reported in participants receiving the vaccine.
    The interim analysis included a total of 131 Covid-19 cases, 根据发布.
      Monday’s news comes after Moderna announced earlier this month that its vaccine was 94.5% effective against coronavirus, 和 辉瑞 announced its vaccine was 95% 有效.
      这是一个发展中的故事 … more to follow

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