Eighteen months might sound like a long time, but in vaccine years, it's a blink. That's the long end of the Trump administration's time window for developing a coronavirus vaccine, and some leaders in the field say this is too fast -- and could come at the expense of safety.


원문출처 : https://www.cnn.com/2020/03/31/us/coronavirus-vaccine-timetable-concerns-experts-invs/index.html