The deadly Ebola outbreak in two African countries driven by a virus species with no vaccine has triggered an urgent search for a potential jab, in a test of troubled global efforts to avert threats posed by emerging diseases.
在非洲两国爆发的致命埃博拉疫情由一种尚无疫苗的病毒株引发，已触发各方紧急寻找潜在疫苗的行动，这也考验着本已问题重重的manbetx app苹果 防范新发疾病威胁的努力。
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