Antibiotic-resistant superbug found for the first time in U.S.

For the first time in the United States, a person has been diagnosed with a superbug that can't be treated, not even with with a last-ditch antibiotic. As described in a study published Thursday in Antimicrobial Agents and Chemotherapy, a 49-year-old woman went to a military clinic in Pennsylvania with symptoms of a urinary tract infection, and when her sample was sent to a lab, it was determined the E. coli bacteria that caused her infection was resistant to colistin, an antibiotic used as a la...