This gene gives resistance to carbapenems and has been found in E. coli and Klebsiella.

BBC: Analysis: Antibiotic apocalypse

Take the case of Klebsiella pneumonia, a hospital superbug, which can cause lethal infections.

BBC: Action on antibiotics

Seven percent of bills showed traces of bacteria that can cause serious illness, including Staphylococcus aureus and Klebsiella pneumonia, according to the study.

CNN: Dirty money? Check your wallet