S-Space College of Medicine/School of Medicine (의과대학/대학원) Pediatrics (소아과학전공) Journal Papers (저널논문_소아과학전공)
Clinical severity of respiratory adenoviral infection by serotypes in Korean children over 17 consecutive years (1991-2007)
- Lee, Jina; Choi, Eun Hwa; Lee, Hoan Jong
- Issue Date
- ELSEVIER SCIENCE BV
- JOURNAL OF CLINICAL VIROLOGY; Vol.49 2; 115-120
- Background: Human adenoviruses (HAdVs) are important causes of acute respiratory tract illness in children. Objectives: To evaluate the risk factors for severe respiratory HAdV infections and the temporal change in case-severity in relation to HAdV types. Study design: From January 1991 to December 2007, respiratory HAdV infections of Korean children requiring hospitalization or an emergency room visit were included. An episode of HAdV infection requiring an intensive care unit stay, use of mechanical ventilation and/or death was designated as a severe infection. The medical records were reviewed retrospectively. Results: A total of 428 respiratory HAdV infections were included in the clinical analysis. The mean age of patients was 2.6 years. The most frequent diagnosis was a lower respiratory tract infection (312/428, 72.9%), and 44% of respiratory HAdV infections occurred in patients with underlying co-morbidities. Fifteen percent of clinical events resulted in severe HAdV infections with a case-fatality rate of 5.1%. HAdV types 7 and 8 were associated with severe infections, after adjusting for co-morbidity and the age of patients (adjusted OR 8.5 and 15.1, respectively, by a logistic regression model). The case-severity of HAdV-7 associated with lower respiratory tract infections has decreased over time, coinciding with the decreasing size of subsequent epidemics after a large outbreak (P for trend = 0.003). Conclusions: HAdV types 7 and 8 were independent risk factors for severe respiratory HAdV infections. In addition, the overall severity of HAdV-7 associated lower respiratory tract infections has shown a decreasing trend, which may reflect increasing level of herd immunity. (C) 2010 Elsevier B.V. All rights reserved.
- Files in This Item: There are no files associated with this item.