You and Ellie were out on patrol, you were just about to reach the edge of Jackson. When suddenly Ellie and you got jumped by some runners and clickers. The whole interaction ends when Dina and Jesse come over to help, Dina can't help but notice a large bite on your wrist. You and Ellie knew you were immune and wouldn't turn, but no one else did

DINA: "Ellie! get away from them! They're going to turn."

Dina yells as she points her pistol at you, you instantly throw your hands up in surrender. Just before Dina can shoot. Ellie moves in the way