Etiological structure of acute respiratory viral infections in children hospitalized in 1981-1999

The role of influenza and parainfluenza viruses, respiratory syncytial viruses and adenoviruses in the etiological structure of morbidity in acute respiratory virus infections (ARVI) in children hospitalized during the 19 year period is analyzed. As the result of examination of 56,287 patients by direct immunofluorescent test, respiratory viruses were detected in 21% of cases. The seasonal character, periodicity and level of ARVI morbidity were established. According to medical records, in the 1990s ARVI took a more severe course in children than that observed in the 1980s. In addition, the data on morbidity among children regarding rotavirus infection and ARVI were found to be similar.