What is the role of WBC count in the diagnosis of scarlet fever?

Updated: Jun 21, 2019
  • Author: Bahman Sotoodian, MD; Chief Editor: William D James, MD  more...
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Answer

The complete blood cell (CBC) count commonly reveals a leukocytosis. The white blood cell (WBC) count in scarlet fever may increase to 12,000-16,000/μL, with a differential of up to 95% polymorphonuclear leukocytes. During the second week, eosinophilia, as high as 20%, can develop.


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