We describe the first pediatric case of Gemella bergeriae endocarditis in a 15-year-old boy with tetralogy of Fallot and pulmonary atresia who presented with weight loss, chills, and cold intolerance. Blood cultures revealed Gram-positive cocci that failed to type with Lancefield group antiserum. The identification of the organism was confirmed by 16S rRNA gene sequencing.
From the *Division of Infectious Diseases, Children's Memorial Hospital; †Department of Pediatrics, Northwestern University Feinberg School of Medicine; ‡Department of Microbiology, Children's Memorial Hospital, and §Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, IL.
Accepted for publication September 13, 2007.
Address for correspondence: Latania K. Logan, MD, Children's Memorial Hospital, 2300 Childrens Plaza, Box 20, Chicago, IL 60614. E-mail: firstname.lastname@example.org