Thanks for posting.. This explains why China went the route it did with the total lock down around Wuhan. I will not go into conspiracy theories, or when they knew what basic lack of knowledge dictates extreme precautions should be taken. China did, the world got knowledge and only the countries that locked down - South Korea, Taiwan - have managed to contain the spread. Americans keep wanting to reinvent the wheel and now we are number one with cases and probably deaths.

It behaves like the Common Cold virus, but more tenacious.