In at least 37 states, Washington, D.C., and Puerto Rico, doctors have identified bacteria, including E. coli, that produce Klebsiella pneumoniae carbapenemase, or KPC--an enzyme that makes bacteria resistant to most known treatments. It's much more prevalent in America than bacteria that produce NDM-1, the enzyme that has Indian doctors "hell scared," and, according to Alexander Kallen, a medical officer at the Centers for Disease Control in Atlanta, the final outcome isn't much different: superbacteria that are hard to kill.
Read the whole thing here in a Yahoo news story from U.S. News & World Report.