The COVID-19 pandemic

[jeffster]

The waves of a pandemic are interesting, because AFAIK there is nothing about the virus itself which would lead to this effect, I assume it must be driven almost entirely by human behaviour...I'm tempted to try and model this, I am curious about what it is that humans are doing that causes this, because in many (most?) cases, the second spike is far far larger than the initial.

It could be weather related — more people staying in doors. People letting their guard down. People are getting lazy with social distancing. As I mentioned earlier, I’ve seen some food service not covering their face. There are other reason too, I am sure.