E. coli — United States
The increase in illnesses and deaths linked to medication-resistant bacteria has been well-documented by researchers and received extensive public attention in recent years. Now, UCLA-led research shows how these bacteria are making it more difficult to treat a common but severe kidney infection.
Pyelonephritis — infection of the kidney usually caused by _Escherichia coli_ bacteria and which can start as a urinary tract infection — causes fever, back pain and vomiting. About half of
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