A new culprit in antibacterial resistance: Cysteine persulfide

Scientists have developed a new, highly sensitive analytical method that can detect degraded beta-lactam antibacterial agents used in the treatment of bacterial infections. With this method, researchers found that reactive sulfur species produced by bacteria degrade and inactivate beta-lactam antibiotics.

source https://www.sciencedaily.com/releases/2021/06/210609115516.htm