人类自在地球上出现以来,与他们朝夕相处的就是地球环境,空气、水、土壤等都与人类的生存休戚相关,与此同时生活在地球上的各种微生物包括细菌和病毒,它们不时地以崭新的形式向人类发起进攻,造成传染病的流行,致使人类大量死亡。1918年医学界称作西班牙感冒的病在世界上流行,受害人达2000万-4000万,死亡率达1%,传播速度相当之快。近一个世纪后,在2002年11月SARS袭击中国广东开始流行,后来在世界三十几个国家也发现这种怪病,但在当时医学界并不知道这是何种病毒传播的。在今年2月 Since human beings emerge on Earth freely and day after day with each other, the earth’s environment, air, water, soil and the like are all related to the survival of mankind. At the same time, various microbes living on the earth include bacteria and viruses, In the form of attacks on human beings, causing the epidemic of infectious diseases, resulting in a large number of human deaths. The medical epidemic, known as the Spanish flu, in 1918 prevailed in the world, with 20 to 40 million victims and a 1% mortality rate. The spread was quite rapid. Nearly a century later, the SARS attack on Guangdong in November 2002 became prevalent in Guangdong. Later, it was also found in over 30 countries in the world, but at that time the medical community did not know what kind of virus was transmitted. In February this year