A 10-year-old boy presented in the emergency department with fever, chills, and recent episodic vomiting. He had immigrated from Nigeria 3 days before the admission. Laboratory results included notable leukopenia, thrombocytopenia, and anemia. His C-reactive protein concentration was 13.1 mg/dL (reference interval, ≤0.5 mg/dL). The following image was seen on a thin smear (Fig. 1). 

Fig. 1. Image of the thin smear for the patient.


  1. What was the organism in the image that played a pivotal role in the transmission of his disease?
  2. What enzyme deficiency can induce hemolysis in patients when they are administered a common drug to treat this medical condition?
  3. What is the proposed relationship between this child's anemia and the C-reactive protein concentration?
Read the article here for the answers.