The Walking Dead: Exact Moment Each Person Became Infected

Patrick (Vincent Martella) was far too pure for the world of The Walking Dead. Innocent and harmless, he was killed after being struck with the devastating flu that raged through the prison.

Dead, he turned and commenced to turn those in the cells around him, causing a panic around the prison. He was put down by Daryl, but in his reanimated state he and others also killed and turned thirteen people.

Later in the season, doctor Caleb (Sunkrish Bala) also succumbed to the flu along with several others before the prison was destroyed.