A Respirator could be handy in numerous occasions, especially if the virus could be airborne within your area. When you’re cutting down the undead, though, the stench is going to get to you. Block your nose and breathe fresh air with this.
Duct Tape is, obviously, useful for many, many things. Everything from repairs to crafting simple items, such as a pouch or shoes, can be accomplished with a roll of duct tape. It’s lightweight, too, so keeping one in your backpack won’t weigh you down.