[zXCaptainXz]

Search for anti-infection armor i'm sure you'll find a plugin that suits you out there, if not tell us more details about the item (can you buy it more than once per round, can you buy it if you already have armor, are you already using zp_human_armor_protect 1 in your server?, if yes then you need to disable it in order to make a custom armor plugin work in 1 hit, unless you want this item to have nothing to do with your normal armor)