TEHRAN (Tasnim) – Chinese researchers have started a second phase human trial of a possible coronavirus vaccine, the Institute of Medical Biology at Chinese Academy of Medical Sciences (IMBCAMS) said Sunday, in efforts to further assess effectiveness and safety.
About a dozen vaccines are in different stages of human tests globally, as the World Health Organization warns the coronavirus pandemic is accelerating and “the world is in a new and dangerous phase”.
However, none of the vaccine trials have passed large-scale, late-stage phase three clinical trials, a necessary step before getting regulatory approval for sale.
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Tasnim News Agency