现在有8种疫苗已经被批准进行临床试验,4天以前是7种,有四个来自中国,一个来自英国,一个是美国人,另一个是美国和欧洲的合并小组。
最早的疫苗的人体试验是美国NIH于3月16日进行的。
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WHO says there are 102 potential Covid-19 vaccines in the works worldwide
From CNN's Elizabeth Cohen and Devon M. Sayers
An engineer looks through a microscope as he checks tests on an experimental vaccine for Covid-19 at the Sinovac Biotech facilities in Beijing on April 29. Nicolas Asfouri/AFP/Getty Images
The World Health Organization (WHO) says 102 potential Covid-19 vaccines are in development around the world, according to documents posted on the organization’s website.
Eight of the potential vaccines are approved for clinical trials. That is up from seven vaccines four days ago. The additional group is from China, but it is unclear if they have started trials on human study subjects – the other seven have.
Of the groups approved for clinical trials on humans, four are from China, one is from England, one is American and another is a combined American and European group.
The American National Institutes of Health (NIH) trial was the first to start testing in human trial subjects on March 16.