Virological analysis on the hospitalized children with acute lower respiratory tract infection in winter and spring

Objective:To understand the status of viral infection of hospitalized children with acute lower respiratory tract infection(ARI) in winter and spring,provide a basis for virological diagnosis of children with ARI. Methods:The hospitalized children with ARI were selected from the hospital from November 2008 to April 2009,the venous blood samples on hospital day were obtained for IgM detection of respiratory viruses,including respiratory syncytial virus(RSV),adenovirus(ADV),influenza virus(IV) and parainfluenza virus(PIV);the children with positive results were analyzed statistically. Results:Among 151 children with ARI,37 children were found with positive results,accounting for 24.5%(37/151),including 32 children with RSV(86.5%),1 child with ADV(2.7%),2 children with IV(5.4%) and 2 children with PIV(5.4%);the prevalence of RSV infection reached the peak from December to January,February in the coming year;the children under 3 years old were susceptible to RSV infection;the peak age of RSV infection was under 6 months,the ratio of boys to girls was 1.9∶1. Conclusion:The main pathogen of ARI among the hospitalized children from the hospital from November 2008 to April 2009 is RSV,followed by IV and PIV.