- 6-week-old girl from Yorktown Heights, New York
- Admitted to the hospital with a 2-day history of fever, irritability, pallor, and decreased oral intake
- Mother was asymptomatic during and after her pregnancy
- Mother visited parks during her pregnancy but did not noticed ticks
- No transfusions were administered to mother or baby
- Baby had enlarged liver and spleen and was icteric
Selected Laboratory Results
Test | Result | Reference Range |
Hemoglobin | 7.1 g/dL | 12.0-16.0 g/dL |
Platelets | 100 x 103 /dL | 150-450 x 103 /dL |
WBCs | 19.7 x 103 /dL | 4.5—11.0103 /dL |
Neutrophils | 4% | 40-80% |
Lymphocytes | 80% | 6-40 U/L |
Monocytes | 16% | 2-10% |
Reticulocytes | 5.5% | 0.5--2.5% |
Total Bilirubin | 2 mg/dL | 0.1-1.0 mg/dL |
ALT | 339 U/L | 10-40 U/L |
