@positiveriley @wboscoho @ddiamond Maybe for the first several years after the flu emerged, while you are developing medicines, vaccines, pubic health systems to track and manage flu outbreaks, etc.
@positiveriley @wboscoho @ddiamond 也许是在流感出现后的最初几年，而您正在开发药物、疫苗、公共卫生系统以跟踪和管理流感爆发等。