rheumatic fever is a possible complication of scarlet fever.
scarlet fever can be treated with antibiotics.
a vaccine is available to protect against scarlet fever.
scarlet fever is caused by an erythrogenic toxin.
Number 3 is correct.
Scarlet fever is an infectious disease usually found in young children; it is distinguished by high fever, sore throat, and a characteristic rash. A possible complication is rheumatic fever. It can be treated with antibiotics. It is caused by an erythrogenic toxin. There is no vaccine for scarlet fever.