Scarlet fever is an infectious disease transmitted by the Streptococcus bacterium. The signs of the disease are: high fever, reddening of the throat and tonsils, punctuate exudate on the tonsils, strawberry tongue and a skin rash which starts on the chest and rapidly spreads to the arms and legs. The complications of scarlet fever include: inflammation of the cardiac muscle, kidneys and middle ear. Scarlet fever can be treated with antibiotics.