Scarlet Fever Causes & Risks

Causes

Scarlet fever is caused by Group A beta-hemolytic Streptococcus pyogenes . This type of bacteria produces a toxin that causes a rash. Scarlet fever usually develops in conjunction with strep throat .

Risk Factors

A risk factor is something that increases your chance of getting a disease or condition.

Risk factors include:

Age: 3-15 years old
Untreated strep infection
Close contact with someone who has an untreated strep infection
Overcrowded environments, or close proximity, such as a daycare facility, school, or home

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