Such a project would represent a paradigm shift in vaccine development. The current process is long (often spanning decades from concept to licensure), has a low probability of success (because of the limitations of animal models in predicting immune response and efficacy in humans), and is costly (often requiring hundreds of millions of dollars to develop a single vaccine).
该工程代表疫苗开发的范式变化。当前的开发过程很长（从提出概念到获得许可要走几十年）、成功概率低（因为动物模型在预测人类免疫反应和效果方面作用有限）、而且成本高昂（通常一种疫苗的开发就要耗费几亿美元）。