spore

The same goes for spore diseases like anthrax, where it's in the soil -- "you can't get rid of that unless you concrete the entire world, because it's in the soil.

通过孢子传播的疾病情况也相同，例如炭疽病就存在于土壤中--“由于它存在于土壤中，除非把整个世界浇注上混凝土，不然无法根除炭疽病。”