A dangerous new gene has surfaced, called NDM-1, that makes bacteria highly resistant to antibiotics. It's spreading from India, and there are now confirmed cases in America. More worrisome is that these weren't business travelers or regular tourists - they were health tourists who had traveled to India specifically for medical treatment.
Many westerners travel to India and Pakistan for cheap cosmetic surgery and other treatment, then bring the gene home with them. The Lancet has documented cases in the UK as well.
In what sounds like a work of bio-war fiction, this gene mixes with existing bacteria, causing essentially complete immunity to antibiotics.
Here's the link:
ABC News Article