https://www.marketwatch.com/story/contagion-philadelphia-and-resident-evil-what-movies-about-infectious-disease-outbreaks-have-in-common-2020-04-28?mod=newsviewer_click
like the show walking dead. The "People" are healthy and have eaten food recently and the zombie like people are sick and have not eaten food recently. the show is here to mentally prepare you for the future.