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Case #524 - September, 2020

A 25-year-old man with fever and myalgia presented to an urgent care clinic in Pennsylvania, and no travel history was obtained at that time. Blood samples were collected and images from Giemsa-stained blood smears (Figures AD) were submitted to CDC for telediagnostic assistance. What is your diagnosis? Based on which features?

This case and images courtesy of PA Department of Health.

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Images presented in the monthly case studies are from specimens submitted for diagnosis or archiving. On rare occasions, clinical histories given may be partly fictitious.

DPDx is an educational resource designed for health professionals and laboratory scientists. For an overview including prevention, control, and treatment visit www.cdc.gov/parasites/.

Page last reviewed: April 28, 2021