"Couldn't tell ya precisely win. I ain't exactly the most sanitary of fighters. I was fightin' my way through cultists. Didn't take much to get soaked in their blood. I got cut open more'n a few times myself. I figure one of 'em must've been carryin' the disease an' hadn't changed just yet."

Which made him a very poor source of information in some regards. He never actually fought the zombies.