这样一个简单ArcGIS网站，子坛随便拉两个CS娃就可以做吧。JHU那个就是俩老中研究生(不是医学院)业余做的

Initially the developers manually updated the data every few hours.

Now they are getting some live feed from some [official] data sources

不过作为国家队，CDC连个像样数据网站都没有，丢脸大了