1.Drug-resistance of pathogenic bacteria resulting from antibiotics abusage in recent several decades has done great threaten to human health.
近几十年来,由于抗生素的致的致病菌耐药性问题,已经对人类康极大威胁。
2.With the abusage of antibacterial agent,many social and economic problems has occurred such as bacterium resistance and high ratio of adverse drug reaction.