For people wondering how this could happen, epgui is assuming action happened early on. April 1st 2020 there were 18k new daily cases (<200k cumulative) and <460 deaths (<4k cumulative). The reproduction rate was already in sharp decline (US even had <1 by May 3rd).

To oversimplify things: you can't spread a virus if there's no one to spread it to.

(we also learned a lot though, like how viruses spread through central ventilation systems in apartment complexes)

Sources:

https://ourworldindata.org/coronavirus/country/united-states

https://ourworldindata.org/explorers/coronavirus-data-explor...