"A new superbug from India could spread around the world -- in part because of medical tourism -- and scientists say there are almost no drugs to treat it.
Researchers said on Wednesday they had found a new gene called New Delhi metallo-beta-lactamase, or NDM-1, in patients in South Asia and in Britain.
U.S. health officials said on Wednesday there had been three cases so far in the United States -- all from patients who received recent medical care in India, a country where people often travel in search of affordable healthcare.
NDM-1 makes bacteria highly resistant to almost all antibiotics, including the most powerful class called carbapenems. Experts say there are no new drugs on the horizon to tackle it."