A 7-year-old girl from southern Missouri is seen in late Jun…
A 7-year-old girl from southern Missouri is seen in late June after a family camping trip. She has had 4 days of fever, headache, muscle aches, and nausea. She has no rash. Her blood tests show a low white blood cell count, a low platelet count, and elevated liver enzymes. Which finding most strongly suggests a serious tick-borne illness?
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