Three premature infants in 1 neonatal intensive care unit developed transfusion-transmitted babesiosis. Two of the infants developed high-grade parasitemia. All 3 affected infants were treated and cured with azithromycin and atovaquone. No infant required exchange transfusion. Clinicians should be cognizant that babesiosis may be acquired via blood transfusion.
From the *Division of Infectious Diseases, Department of Pediatrics and †Department of Pathology, Yale School of Medicine, New Haven, Connecticut; ‡Department of Pharmacy and §Department of Laboratory Medicine, Yale-New Haven Hospital, New Haven, Connecticut; and ¶Yale School of Public Health, New Haven, Connecticut.
Accepted for publication June 30, 2017.
The authors have no conflicts of interest to disclose.
Address for correspondence: Julia R. Glanternik, MD, FAAP, Division of Infectious Diseases, Department of Pediatrics, Yale School of Medicine, New Haven, CT. E-mail: email@example.com.