![Epidemic Curve Graph](https://blogs.sas.com/content/graphicallyspeaking/files/2014/08/ByDate_93-702x336.png)
A few weeks back I wrote an article on Grouped Timeline for creating a stacked timeline for onset of different virus. The idea in that article was to display a stacked needle on a time axis using a HighLow plot. Such graphs are also referred to as EPI or Epidemic Curve