3blue1brown (Grant Sanderson) share a few simulations that model how epidemic spread using SIR models that assume people are susceptible, infectious, or recovered.
You’ve been told a thousand times: wash your hands to stop the spread of COVID-19. But why does this work so well? It has to do with the way the soap molecules are able to absolutely demolish viruses, like the coronavirus. Vox explains how soap kills the coronavirus.