Antibiotic Superteam (IMAGE) University at Buffalo Caption A novel combination of aztreonam, amikacin and polymyxin B was able to kill E. coli carrying mcr-1 and ndm-5 -- genes that make the bacterium immune to last-resort antibiotics. Credit University at Buffalo Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.