随着各种抗生素及抗菌药的广泛应用，尤其不合理滥用，不仅导致耐药菌株日趋增多，而且耐药程度亦不断增强，并且出现对多种抗生素都耐药的多重耐药菌株。细菌耐药性已对人类构成严重威胁。据《美国医学会杂志》报道，目前许多强有力的广谱抗生素无法对付的感染的人数大增... With the wide application of various antibiotics and antibacterials, especially unreasonable abuse, it not only leads to the increasing number of drug-resistant strains but also the drug resistance, and the emergence of multiple drug-resistant strains that are resistant to various antibiotics. Bacterial drug resistance has posed a serious threat to human beings. According to the Journal of the American Medical Association, the current number of powerful broad-spectrum antibiotics can not cope with the increased number of infections ...