Red foxes and birds regularly cross between human-dominated and natural ecosystems. For this reason, they may be heralds of spreading antibiotic resistance into ecosystems unexposed to antibiotic pressures, a study done in Italy showed. Results indicated that the share of K. pneumoniae isolates resistant to third-generation cephalosporins—a key group of hospital antibiotics—was about five times higher in wildlife than in isolates from human hospital patients. This shows that studying wildlife resistance can be an effective tool to monitor antimicrobial resistance in natural environments, the researchers said, and called for improved wastewater management, a reduction of antibiotic pollution of water, and a restriction of clinically important antibiotics to human medicine.
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