The Center for Disease Control and Prevention ( FDA ) has reported that several cases of unusual antibiotic - resistant genes in bacteria were uncovered in the US last year . Once antibiotic resistance spreads, it is harder to control — like a wildfire," the CDC said in a report. The superbugs have spread like " wildfire " , the CDC says , because they constantly evolve to gain resistance to new forms of treatment .
The Center for Disease Control and Prevention ( FDA ) has reported that several cases of unusual antibiotic - resistant genes in bacteria were uncovered in the US last year . The superbugs have spread like " wildfire " , the CDC says , because they constantly evolve to gain resistance to new forms of treatment .