Crucially, as such bacteria are commonly found on the skin of patients with eczema or atopic dermatitis, the work helps explain why such conditions can be accompanied by the urge to scratch.
In their first experiments, the team discovered mice with methicillin-resistant Staphylococcus aureus (MRSA) applied to their skin were not only more likely to develop dermatitis than mice without, but scratched far more, and would also feel itchy when touched with a small filament that would not normally cause the sensation.
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