If everyone is infected with The Walking Dead virus and it's triggered upon death of any kind, why do we see all of those dead people in cars after Sophia goes missing?
![The Walking Dead Theory: What caused the infection in the prison? Fans come up with answer | TV & Radio | Showbiz & TV | Express.co.uk The Walking Dead Theory: What caused the infection in the prison? Fans come up with answer | TV & Radio | Showbiz & TV | Express.co.uk](https://cdn.images.express.co.uk/img/dynamic/20/590x/secondary/The-Walking-Dead-Infected-episode-2286232.png?r=1580454983048)
The Walking Dead Theory: What caused the infection in the prison? Fans come up with answer | TV & Radio | Showbiz & TV | Express.co.uk
![The Walking Dead Theory: What caused the infection in the prison? Fans come up with answer | TV & Radio | Showbiz & TV | Express.co.uk The Walking Dead Theory: What caused the infection in the prison? Fans come up with answer | TV & Radio | Showbiz & TV | Express.co.uk](https://cdn.images.express.co.uk/img/dynamic/20/590x/secondary/How-did-the-infection-start-in-the-prison-in-The-Walking-Dead-2286231.png?r=1580454982939)
The Walking Dead Theory: What caused the infection in the prison? Fans come up with answer | TV & Radio | Showbiz & TV | Express.co.uk
![The infected – Fear the Walking Dead _ Season 3, Episode 11 – Photo Credit: Richard Foreman, Jr/AMC | Las Vegas Review-Journal The infected – Fear the Walking Dead _ Season 3, Episode 11 – Photo Credit: Richard Foreman, Jr/AMC | Las Vegas Review-Journal](https://www.reviewjournal.com/wp-content/uploads/2017/09/9180799_web1_fear-the-walking-dead20179613813630.jpg)