The main thing in hand sanitizer is alcohol.

Such is the nature of the average ignoramus today. I went looking for hand sanitizer dispensers and found a 3 foam anti-bacterial bottles on the reduced shelf (my local small supermarket), bought two. Given the way the public react, why sell them cheap?

Then looked for the alcohol gel versions and drew a blank but there were plenty of surgical spirit bottles, and there are spray bottles on sale elsewhere. Bought 2.

Mind you, the antibacterial handwash I found was the last one. It is easier and cleaner than a bar of soap, so even though it won't kill a virus, it will give it a hard time.

There is an analogy when explaining plane crashes that describes multiple layers of protection that have holes in them, and in normality the next layer protects. But when the holes line up you have a problem.
Looking for holes we have: austerity, with economies over-leveraged, low interest rates to tackle a depression (still), we have Trump/Boris, we have uncontrolled fires, we have floods. Now COVID-19 is finding the weaknesses.................