A CHr of less than 27.5 pg is a more accurate hematological indicator of iron deficiency compared with hemoglobin of less than 11 g/dL in these healthy 9- to 12-month-old infants. Further studies are warranted to determine whether CHr should be the preferred screening tool in the early detection of iron deficiency in infants.

Children younger than 6 months and uncircumcised boys are at increased risk of contaminated specimens from bladder catheterization. Suprapubic aspiration or use of a fresh, sterile catheter with each repeated attempt at catheterization may lead to less contamination in these patients.

A case of transfusion-associated neonatal babesiosis is presented. Jaundice, hepatosplenomegaly, anemia and conjugated hyperbilirubinemia developed in this preterm infant. The diagnosis was eventually made by blood smear, serology and polymerase chain reaction. The patient was treated with clindamycin and quinine and made a favorable recovery. Of neonatal babesiosis reported in the literature, 9 other cases are reviewed, including 6 that were transfusion-associated, 2 congenital and 2 tick transmitted.

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