Scarlet fever is an infectious disease that is caused by bacteria. It is caused by exotoxin released by Streptococcus pyogenes. It was once a major cause of death. It is now treated with antibiotics. The term scarlatina can be used to mean scarlet fever. Scarlatina is a lesser form of scarlet fever. At the early times, this disease could not be cured and this was a common reason for death in that time which applies to many famous people of the world.