How Long is Scarlet Fever Contagious?

Scarlet fever is contagious up to 21 days. Once you are on antibiotics for 24 hours scarlet fever is no longer contagious. This disease is manifested mostly by a skin rash. Spreading of this disease is through contact with a person that has an active outbreak. You can find more information here: http://www.lambtonhealth.on.ca/communicable/scarlet.asp
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