MRSA arose in hedgehogs long before hospitals
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Superbug MRSA arose in hedgehogs long before it cropped up in hospitals

Evolutionary arms-race between fungus and bacteria saw the emergence of Methicillin-resistant Staphylococcus aureus more than a century before the clinical use of antibiotics

A hedgehog sits in the grass
The findings are not a reason to fear hedgehogs, say the researchers. Credit: Pia B. Hansen
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