Emerging Infectious Disease ISSN: 1080-6059

Probable Congenital Babesiosis in Infant, New Jersey, USA

Sonia Sethi, David Alcid, Hemant Kesarwala, and Robert W. Tolan

Author affiliations: The Children’s Hospital at Monmouth Medical Center, Long Branch, New Jersey, USA (S. Sethi); Saint Peter’s University Hospital, New Brunswick, New Jersey, USA (D. Alcid, H. Kesarwala, R.W. Tolan, Jr.); Robert Wood Johnson Medical School, New Brunswick (D. Alcid); Drexel University College of Medicine, Philadelphia, Pennsylvania, USA (H. Kesarwala, R.W. Tolan, Jr.)

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Figure

Giemsa-stained (A) and Wright-stained (B) peripheral blood smear from a newborn with probable Babesia microti infection. Parasitemia was estimated in this newborn at ≈15% based on the number of parasites per 200 leukocytes counted. The smear demonstrated thrombocytopenia and parasites of variable size and morphologic appearance and an absence of pigment. Magnification ×1,000.

Figure. Giemsa-stained (A) and Wright-stained (B) peripheral blood smear from a newborn with probable Babesia microti infection. Parasitemia was estimated in this newborn at ≈15% based on the number of parasites per 200 leukocytes counted. The smear demonstrated thrombocytopenia and parasites of variable size and morphologic appearance and an absence of pigment. Magnification ×1,000.

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