Pharmacy key as antibiotic-resistant superbug found

A woman from Pennsylvania in the US has been found to be carrying bacteria resistant to the last-ditch antibiotic colistin, according to the journal Antimicrobial Agents and Chemotherapy. Researchers reported that E. coli bacteria from the woman's urinary tract infection contained the mcr-1 gene, first discovered in China in 2015, which confers resistance to colistin.