Artemisinin-based medications have long been the treatment of choice for malaria. But late in 2015, health officials in Britain came across a cluster of cases that refused to succumb to the drugs.
The germs caused a urinary tract infection in a Pennsylvania woman that was difficult to treat. The bacteria were resistant to the drug often used as the last-ditch treatment, but another one worked.
Travelers are bringing a nasty bacterial disease to the U.S. and spreading it to others. The bacteria cause bad diarrhea and are tough to treat because they're resistant to the top antibiotic.
Many of us take antibiotics when we get tummy troubles in developing countries. Scientists say this opens the door for a dangerous visitor in the GI tract. These microbes can stick around for months.