Furthermore, it has been shown that drug resistance is genetically instigated [11]. Although early studies showed that bacterial isolates had no genes for antimicrobial resistance [12,13], it has since been shown that the rate of E. coli adaptive mutation is in the order of 105 per genome per generation [14], a projection that is 1,000 times higher than previously inferred. In other words, pathogenic E. coli is developing drug resistance at a higher rate than the rate in which new antimicrobial agents are developed. Studies have demonstrated that pathogenic E. coli has developed resistance to a wide range of antibiotics [9,11]. The resistance to penicillin, monobactams and cephalosporin, members of β-lactam antibiotics, is mediated by extend spectrum β-Lactamase enzyme (ESBL), which is thought to harbor blaTEM gene [15-17]. The blaTEM gene is responsible for 90% of ampicillin resistance in E. coli [18].