bleach is perfectly fine to touch a plant and actually should be encouraged to be used when ever cutting anything off an orchid (leaf, root, spike..) so as not to spread viruses. and on that note, nothing can get rid of a virus. it is in the tissue of the plant. any time new growths come up they will be infected. if you want to clone it they wont because even on a new shoot the meristematic tissue has the virus in it! however i am fairly sure that viruses can not be passed on through pollen..and also many plant these days have viruses and you wouldnt even know it. Vandas and Cattleyas especially! often times viral symptoms will not present themselves unless certain stresses or cultural changes occur to set them off..