biosecurity
noun [ U ] uk/ˌbaɪ.əʊ.sɪˈkjʊə.rə.ti/ us/ˌbaɪ.oʊ.sɪˈkjʊr.ə.t̬i/
生物安全
the methods that are used to stop a disease or infection from spreading from one person, animal, or place to others
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。