While searching large volumes of bacterial DNA, researchers at Chalmers University of Technology in Sweden have found 76 previously unknown genes that make bacteria resistant to last-resort antibiotics. these resistance genes can provide bacteria with the ability to degrade carbapenems -- most powerful class of antibiotics used to treat multi-resistant bacteria. In the study, published in the scientific journal Microbiome, the researchers identified the novel genes by analyzing DNA sequences from bacteria collected from humans and various environments from all over the world. They developed new computational methods to find patterns in DNA that are associated with antibiotic resistance. By testing the genes they identified in the laboratory, they could then prove that their predictions were correct. The next step for the research groups is to search for genes that provide resistance to other forms of antibiotics.