We knew very early on that plain soap and water were very effective at killing coronavirus (and much, much more so than alcohol gel hand sanitizer). It was even

We knew very early on that plain soap and water were very effective at killing coronavirus (and much, much more so than alcohol gel hand sanitizer). It was even official advice here in the UK to use soap and water instead of alcohol gel for hand washing if at all possible I think. Yet many people still seemed to think the exact opposite. They still have it alongside soap in my office bathrooms for example. It makes a very interesting social study.