As of mid-2010, NDM-1 carrying bacteria have been introduced to other countries (including the United States and UK), most probably due to the large number of tourists travelling the globe, who may have picked up the strain from the environment, as strains containing the NDM-1 gene have been found in environmental samples in India.
En 2010 as bacterias que levaban o xene da NDM-1 foran introducidas noutros países (incluíndo os Estados Unidos e Reino Unido), moi probablemente debido ao gran número de turistas que viaxan polo mundo, que poden contaxiarse coa cepa no seu ambiente, xa que as cepas que conteñen o xene NDM-1 atopáronse en mostras ambientais na India.