"Scrumpox", or "Herpes Rugbiorum", is an infection of the skin cause by the herpes simplex virus. Its name comes from rugby, a sport where players come into regular and close contact with each other in particular during the scrum. Scrumpox is characterized by intensely painful fluid-filled blisters, often on the face and neck, containing millions of infectious virus particles. Close contact causes the infected blisters to burst and pass the infection along. The infection is not limited to players of rugby and can be passed through any close skin contact, particularly in wrestling where it is more commonly referred to as "Herpes Gladiatorum".