Experimental Study On The Effects On Quantity Of E.coli And Enterococcus By Three Commonly Used Antibiotics In Mice

BackgroudThe opportunist pathogens(conditional pathogens) are becoming the pathogenic agents of human disease more and more, especially in nosocomial infection's. Besides interchange location, propagation of the opportunist pathogen drug resistance is one of the important etiological factor. These is attributed to abusage antibiotics. At present, abusage antibiotics is a universal phenomenon. The antibiotics, especially broad-spectrum antibiotics not only kill the pathogenic bacteria, but also affect on the normal flora. The beneficial bacteria are repressed and the balance of micro-eubiosis is changed by antibiotics treatment, and the conditional pathogenic bacteria are multiplicity reduplication which become pathogenic bacteria.At present, infections caused by antibiotic-resistant opportunist pathogens have become a urgent problem of clinic and public health which must be taken notice of. This is a main etiological factor of nosocomial infection.E.coli is a major cause in Gram-negative bacteria(G" bacteria) nosocomial...