A tissue containing ingredients that claim to help kill cold and flu viruses sounds like such a good idea it's a wonder it wasn't launched in the UK years ago. It is here now in the form of Kleenex Anti-Viral, a three-ply tissue with a middle layer that traps and kills 99% of cold and flu viruses before they spread. It looks set to become the tissue that everyone with the sniffles will be reaching for this winter.