Can I spread the vaccinia virus on to others?
Yes. Vaccinia is spread by touching a vaccination site before it has healed or by touching bandages or clothing that have become contaminated with live virus from the vaccination site. If you have an active blister and contaminate another person, they can develop the same side effects and reactions as if they had the vaccine themselves. Vaccinia can not be spread through the air or saliva, like smallpox.
