A very serious and rapidly progressing form of the disease occurs when bacterial spores are inhaled making anthrax a potent threat when used as a biological warfare agent.

当炭疽被用作生物战剂时，人们一旦吸入细菌孢子，炭疽杆菌就会对人体形成威胁，同时病情将迅速恶化。

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Anthrax, which in nature is spread through infected animals and whose spores can live in the soil for years, is considered a potential agent for use in biological warfare.

CNN: Sources: Anthrax possibly linked to lab