Experts are sounding the alarm about a cluster of four New York City hospital patients carrying an antibiotic-resistant "superbug" form of E. coli.
The E. coli harbored by the patients has an antibiotic resistance gene called mcr-1, which gives the bacteria resistance to colistin, an antibiotic of last resort against some multidrug-resistant infections, according to a team led by Dr. Anne-Catrin Uhlemann.
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