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Why would you use Vodka? Just use isopropyl alcohol at 99% mixed down to around 70% with glycerin, aloe vera gel or just water in a pinch. Like it says in the sentence before your quote.
How do people manage the hand washing on the tube, in the supermarket or generally out and
about amongst people? I don't understand the arguments soap vs. sanitizer. You are not going to use the sanitizer instead of hand washing at home are you? It should be in addition
to hand washing in situations where there is no soap and water available.
BBC News - Coronavirus: The fake health advice you should ignore
https://www.bbc.co.uk/news/world-51735367
@hugo7 see number 3: