Geeez, you should see the comments down page. The stories are most unpleasant..
It presents itself as Strep Throat and rash. Those prone to strep, but testing is very important to detect the particular strain of strep related to actual Scarlet Fever, if I got the gist of it, in comments.
Easily curable with modern antibiotics, but disguised as strep it can goes too long undetected and can cause damages.