INFLUENZA AGENT AND ACUTE RESPIRATORY DISEASE MONITORING IN CHILDREN WITH COMMUNITY-ACQUIRED PNEUMONIAS

The range and detection rate of respiratory viruses at the onset of community-acquired pneumonias were studied in 276 children at the age of 3 months - 16 years old in epidemic seasons of 2012-2013 and 2013-2014 by the PCR method. The etiology of respiratory infection was identified in 51.2%-59.3% of the children examined. In February-March of 2013 the children were revealed to have А(H1N1)pdm and А(H3N2) influenza viruses. In February-April of 2014, three influenza viruses were detected, namely: А(H1N1)pdm, А(H3N2) and B influenza viruses. The rate and interval of pandemic А(H1N1)pdm influenza virus detection in 2012-2014 was found to decrease as compared with the 2010-2011 season. A share of a particular agent in the etiological structure of acute respiratory viral infections (ARVI) depends on the year, season and children’s age. Rhinoviruses were most common and were detected at a rate of 6-70% in all age groups with two seasonal peaks of maximum detection in autumn and spring. Adenoviruses were detected in autumn and winter seasons, RS-virus and hMPV - in winter and spring seasons. Bocaviruses were only found in autumn and winter in children under 3 years old. Coronaviruses were never detected. The application of PCR method contributes to quick etiologic ARVI diagnose, the correct estimation of epidemiologic situation; it also allows to improve epidemiologic supervision over acute respiratory diseases.

острые респираторные вирусные инфекции, дети, внебольничные пневмонии, ПЦР, acute respiratory viral infections, children, community-acquired pneumonias, PCR

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