And the resistance had spread between a range of bacterial strains and species, including E. coli, Klebsiella pneumoniae and Pseudomonas aeruginosa.
There is also evidence that it has spread to Laos and Malaysia.
Prof Timothy Walsh, who collaborated on the study, from the University of Cardiff, told the BBC News website: "All the key players are now in place to make the post-antibiotic world a reality.
"If MRC-1 becomes global, which is a case of when not if, and the gene aligns itself with other antibiotic resistance genes, which is inevitable, then we will have very likely reached the start of the post-antibiotic era.
"At that point if a patient is seriously ill, say with E. coli, then there is virtually nothing you can do."
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