Synergistic effect between nisin and polymyxin B against pandrug-resistant and extensively drug-resistant Acinetobacter baumannii.

Acinetobacter baumannii is an opportunistic pathogen predominantly associated with nosocomial infections. The World Health Organization's data on antibiotic-resistant 'priority pathogens' reports carbapenem-resistant A. baumannii as a pathogen which is in critical need of research and development of new antimicrobials.