Scarlet fever is an infectious disease which gives you a painful throat, a high temperature, and red spots on your skin.
scarlet fever in British English
noun
an acute communicable disease characterized by fever, strawberry-coloured tongue, and a typical rash starting on the neck and chest and spreading to the abdomen and limbs, caused by all group A haemolytic Streptococcus bacteria
Technical name: scarlatina
scarlet fever in American English
an acute contagious disease, esp. of children, caused by hemolytic streptococci and characterized by sore throat, fever, and a scarlet rash