The prevalence of Helicobacter pylori infection in young children attending day care facilities was studied using a monoclonal stool antigen test. Of 316 samples, 78 (24.7%) were positive. Only 7/98 (7.1%) of the 3- to 12-month-old infants tested positive compared with 71/218 (32.5%) of the 13- to 60-month-old group. We conclude that approximately 30% of infants may become infected with H. pylori after the first year of life.
From the *Division of Pediatrics, Kaplan Medical Center, Rehovot Israel; and †Hebrew University, Hadassah Medical School, Jerusalem, Israel.
Accepted for publication July 3, 2008.
Address for correspondence: Michal Kori, MD, Pediatric Gastroenterology, Kaplan Medical Center, P.O.B 1, Rehovot, Israel. E-mail: firstname.lastname@example.org.