• Miri Dotan, Elena Zion, Haim Ben-Zvi, Havatzelet Yarden-Bilavsky, and Efraim Bilavsky.
• Department of Pediatrics C, Schneider Children's Medical Center of Israel, Petah Tikva, Israel.
• Isr Med Assoc J. 2021 Jul 1; 23 (7): 416-419.

BackgroundAdenovirus infections are prevalent in children. They usually cause a mild self-limited disease. However, this infection can be associated with considerable morbidity and mortality in specific populations, especially among immunocompromised children. Children with Down syndrome are susceptible to a higher frequency and increased severity of viral infections. Little is known about the severity and clinical course of adenovirus infections in children with Down syndrome.ObjectivesTo characterize hospitalized children diagnosed with Down syndrome and presenting with adenovirus infection.MethodsWe performed a retrospective review of children admitted with adenovirus from January 2005 to August 2014 from a single tertiary pediatric medical center in Israel. Data were compared between patients with and without Down syndrome.ResultsAmong the 486 hospitalized children with adenoviral infection, 11 (2.28%) were diagnosed with Down syndrome. We found that children with Down syndrome were more likely to experience a higher incidence of complications (18.2% vs. 2.4%, P = 0.008), a higher rate of admissions to the intensive care unit (36.4% vs. 2.4%, P < 0.001), and more prolonged hospitalizations (17 ± 15.9 days compared to 4.46 ± 3.16, P = 0.025).ConclusionsChildren with Down syndrome who were hospitalized with adenovirus infection represent a high-risk group and warrant close monitoring. If a vaccine for adenovirus becomes available, children with Down syndrome should be considered as candidates.

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