[thedoc]

Hi,

When someone buys chips (crisps I guess!) from a vending machine, they take their change, and then use the same hand to eat whats inside. Is this unwise ?

I am a chemist, and really hope your show keeps growing.

Best,
Dave
Asked by David Michaels


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[chapter podcast=3746 track=11.11.20/Naked_Scientists_Show_11.11.20_9338.mp3]  ...or Listen to the Answer[/chapter] or [download as MP3]

[Nizzle]

No, that's why we have an immune system.

Unless you are immunocompromised or have the bad luck that a really really nasty microbe is present on your hands you shouldn't worry about catching something.