Was the lady doing the berating wearing a face mask?Official UK advice is that public wearing of face masks is not necessary. The WHO has not supported it but is said to be reconsidering its position. In Czechia (Czech Republic) it is now compulsory to cover your nose and mouth when in public. Germany is now recommending it, certain parts of the USA are making it compulsory. And the only economically advanced countries who seem to be controlling Covid19 (South Korea, Hong Kong, Singapore, Taiwan, Japan) all have widespread wearing of face masks.A face mask will do little to stop you contracting the virus but it will reduce the risk you spread the virus. Most virus spread is by breathing out droplets containing Covid19, so any type of mask (including one made from a cotton T shirt) will prevent of lot of virus spread by preventing them dropping on other surfaces. As anywhere between 20-50% of Covid19 sufferers don't display symptoms, it makes sense to wear a face mask even if you fell well. This Czech chap explains the thinking behind it succcintly.https://www.youtube.com/watch?v=qFmaSNP6_z4
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