[Norseman]

Why is it interesting? It seems like a meaningless number to me. It would depend on who was tested. You could go into an isolated hamlet somewhere where the virus hadn’t yet arrived, test a hundred people and state that out of every hundred people tested, none had the virus. Same difference.

[JoSixChip]

Why is it interesting?

Because they are only testing sick people. Once detected somewhere, the virus would be much more prevalent in this group. A random sample would be hit and miss on several fronts.