Author: Chu, Yanhui; Wu, Zhenyu; Ji, Jiayi; Sun, Jingyi; Sun, Xiaoyu; Qin, Guoyou; Qin, Jingning; Xiao, Zheng; Ren, Jian; Qin, Di; Zheng, Xueying; Wang, Xi-Ling
Title: Effects of school breaks on influenza-like illness incidence in a temperate Chinese region: an ecological study from 2008 to 2015 Document date: 2017_3_6
ID: r7a0orh7_15
Snippet: Consistent with other studies in China and other temperate regions, 16 we found peaks of influenza in Beijing appeared synchronised across age groups in most winters and springs during 2008-2015. For age groups of 0-4 and 5-14, peaks of ILI% had also been detected before summer breaks, which might be driven by final examination stress, poor classroom ventilation, incompletely developed immune system and other unfavourable factors related to young.....
Document: Consistent with other studies in China and other temperate regions, 16 we found peaks of influenza in Beijing appeared synchronised across age groups in most winters and springs during 2008-2015. For age groups of 0-4 and 5-14, peaks of ILI% had also been detected before summer breaks, which might be driven by final examination stress, poor classroom ventilation, incompletely developed immune system and other unfavourable factors related to young children. Since ILI visits could be caused by influenza, respiratory tract infection and other illness, ILI% is a broad indicator of respiratory disease activity not entirely specific for influenza and could be affected by changes in health-seeking behaviour. 10 Therefore, laboratory surveillance data are necessary for further conclusions on age-specific seasonal influenza activities from a public health perspective.
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