Epidemiological and clinical characteristics of respiratory viral infections in children in Shanghai, China
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Acute respiratory tract infections (ARTIs) due to various viruses are not only the most common causes of upper and lower respiratory infection but are also major causes of morbidity and mortality in children. In this study, we investigated the prevalence and clinical characteristics of children with virus-related ARTIs and determined the spectrum of respiratory viruses and their correlation with meteorological variables in Jiading District, Shanghai, China. Nasopharyngeal swabs from 2819 children with ARTIs were collected from August 2011 to December 2014, and used for detection of respiratory viruses by multiplex RT-PCR. Seventeen respiratory viruses were detected among 691 (24.5 %) of 2819 patients. The highest prevalence of respiratory viruses was detected in the age group of less than 1 year (29.0 %), and the prevalence decreased with age. This suggests that children less than one year old are the most susceptible to infection. Influenza virus (IFV) was the most frequently detected virus (5.8 %), followed by parainfluenza virus (PIV) (5.7 %), enterovirus (EV) (4.3 %), and respiratory syncytial virus (RSV) (3.6 %). Statistical analysis showed that epidemics of IFV, PIV and EV had distinct seasonal variations. Mean monthly temperature appeared to be the only meteorological factor associated with IFV and PIV infection. These findings will provide valuable information for decision-making, prevention and treatment of ARTIs in children.
This work was supported by grants from the China National Mega-projects for Infectious Diseases (2012ZX10004211-002 and 2013ZX10004101-005), and Health Bureau Key Disciplines in Jiading District of Shanghai-Pediatric Respiratory Specialty (ZD03).
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- 18.Zhang ZY, Du LN, Chen X, Zhao Y, Liu EM, Yang XQ, Zhao XD (2010) Genetic variability of respiratory syncytial viruses (RSV) prevalent in Southwestern China from 2006 to 2009: emergence of subgroup B and A RSV as dominant strains. J Clin Microbiol 48:1201–1207CrossRefPubMedPubMedCentralGoogle Scholar