Single resistant bacteria have been around for a long time, but the new gene is found alongside other resistance genes. So far, multiple resistance in the presence of NDM-1 has been found in Klebsiella pneumoniae, giving this strain an ability to withstand nearly all available medical treatments for bacterial infections.
In 2010, NDM-1 was known to be spread throughout India. Bacteria containing the gene also spread to the UK via patients who travel abroad for medical procedures, as well as the United States, Canada, and Australia. The New Delhi gene is becoming a common variant in the bacterial genome, and as of 2010 was found in an estimated 1-3 percent of enterobacteria infections.
Read more about NDM-1, the so-called superbug gene.
NDM-1 has a novel sequence, and likely a novel structure - medicine will likely need something entirely new to fight any infectious bacteria that carry the gene. Does this mean current antibiotics will likely be useless in 10 years? Read more about the background and potential for invincible bacteria.