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the methods that are used to stop a disease or infection from spreading from one person, animal, or place to others生物安全

Chicken farmers have strengthened biosecurity to prevent contamination from people who have visited live-bird markets.养鸡场农庄主加强了生物安全措施,以防去过活鸟市场的访客身上携带的污染。
biosecurity
Infection and fighting infection:antibody, biosecurity, candida...

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