For the first time in three decades, researchers believe they have identified a new class of antibiotics.Teams at McMaster University in Ontario, Canada and the University of Illinois, Chicago — led by researcher Gerry Wright — collaborated in the discovery of lariocidin, which was found to be effective against drug-resistant bacteria.The results were published this week in the journal Nature.SUPERBUGS DUE TO ANTIBIOTIC RESISTANCE COULD KILL 39 MILLION PEOPLE BY 2050, LARGE STUDY FINDSLariocidin is a lasso peptide, a string of amino acids in a lasso shape that attacks bacteria and keeps it from growing and surviving, according to a