Mary-Louise McLaws

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While we move soap around, it lifts up invisible oil that holds germs onto your hand.

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They're everywhere in hospitals, travellers' backpacks and the aisles of pharmacies in winter, but do we really need to use alcohol-based hand sanitiser, asks Mary-Louise McLaws.

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Doctors lag behind nurses in hand hygiene in hospitals, despite evidence that alcohol-based hand rub is the cheapest and best way to prevent infection, according to a new study.