Scarlet fever is a bacterial infection caused by group A Streptococcus. This illness affects people who have strep throat or streptococcal skin infections. Scarlet fever is treatable with antibiotics and also helps clear up symptoms faster and reduces spread to other people. Although anyone can get scarlet fever, it usually affects children between 5 and 12 years of age. The classic symptom of the disease is not the fever, but a certain type of red rash that feels rough, like sandpaper.
Scarlet fever: an infectious disease which most commonly affects 4-8 year old children; symptoms: sore throat, fever, characteristic red rash; usually spread by inhalation; no vaccine, but it is effectively treated with antibiotics; most are caused by erythrogenic toxin, a substance produced by the bacterium Streptococcus pyrogenes (group A strep) when infected by a certain bacteriophage; before antibiotics, it was a major cause of death
Scarlet fever: symptoms and treatments - goodtoknow
Scarlet Fever Strep throat caused by erythrogenic toxin producing strains of Streptococcus pyogenes results in scarlet fever. Erythrogenic toxin production is caused by a phage. Symptoms include a red rash, high fever, red enlarged tongue. Penicillin is the drug of choice. Immunity is developed to the toxin not the organism.