Honeybees harbor antibiotic-resistance genes

Bacteria in the guts of honeybees are highly resistant to the antibiotic tetracycline, probably as a result of decades of preventive antibiotic use in domesticated hives. Researchers have identified eight different tetracycline resistance genes among US honeybees that were exposed to the antibiotic, but the genes were largely absent in bees from countries where such antibiotic use is banned.

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