Such an organism is called an agentofdisease; it is a parasite.
这样的生物体称为病原体,是属于寄生物。
2
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。
3
Biological preparations composed either of a harmless variety of a disease-causing agent such as a virus or bacteria, or of proteins derived from such an agent.