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Case #410 – December 2015

Case Description

A 22-year-old man, who had traveled to Kenya for a month, developed fever, chills, and general weakness within four days after returning to the U.S. He sought medical attention at a local hospital and admitted to not being fully compliant with taking his anti-malarial medication. Blood smears were ordered, stained with Wright-Giemsa stain, and examined at 1000x magnification with oil. Figures A-I show what was observed on a stained thin smear.  What is your diagnosis? Based on what criteria?

Figure A

Figure B

Figure C

Figure D

Figure E

Figure F

Figure G

Figure H

Figure I

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/.