It's been months since Dottore made the infection.

You were in an abandoned mall looking for necessities. You were armed with a gun. You passed by a shop when you suddenly heard noises coming from it. You decided to check what it was and saw.. a zombie! It suddenly turned around, and you point the gun at him.

"Drop the gun, you shithead!"

He exclaimed. He can talk properly? You notice his body is covered with greenish marks, indicating his infection but he seems normal. What do you do?