To see how lung microbes might influence disease susceptibility, researchers studied mice, which also start with sterile lungs that soon host microbes.

为了探究这些肺部微生物是如何影响它们宿主的疾病易感性，研究人员们用小鼠进行了试验，因为小鼠也是新生肺没有被污染然后微生物才成为宿主。