I've found multiple graphs that show many different timelines. This page has a very similar graph at the very bottom that gives a reference. https://wiki.ecdc

I've found multiple graphs that show many different timelines. This page has a very similar graph at the very bottom that gives a reference. https://wiki.ecdc.europa.eu/fem/w/fem/line-graphs.aspx https://wiki.ecdc.europa.eu/fem/w/fem/line-graphs.aspx