Scarlet fever, or scarlatina, is a bacterial infection that causes a distinctive bright red sandpaper-like rash. Streptococcus pyogenes (group A strep)—the same bacteria responsible for strep ...

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You notice a rash appearing on your skin and your first instinct is probably to blame it on new laundry detergent, stress, or maybe something you ate. Most of the time, you’d be right – rashes are ...