I would like a bit more clarity on this chart [1] comparing R_0 and case fatality rate of COVID-19 with other similar diseases. I am trying to understand why Ebola did not kill as many people as COVID-19 has.<p>My understanding is that R_0 just depends somehow only on the virus itself, while there is another factor R = a R_0, which determines the actual reproduction number "in practice", taking into account isolation measures and such. So for Ebola R was much lower than R_0, so a lot fewer people died compared to COVID-19. Is this correct?<p>[1] <a href="https://media.nature.com/lw800/magazine-assets/d41586-020-00758-2/d41586-020-00758-2_17810952.png" rel="nofollow">https://media.nature.com/lw800/magazine-assets/d41586-020-00...</a>