Researchers discover new variant on notorious resistance gene Posted on September 12, 2017 by admin New variant on resistance gene MCR-1 found in Salmonella in a healthy carrier in China Gene variant, called MCR-1.6, confers resistance to last-resort polymyxin antibiotics Investigators fear spread of disease via healthy carriers Post navigation Update on Multi-Country Salmonella Outbreak: Steep Fall in Reported CasesTongans encouraged to prioritize hygiene