Epidemiologic and Economic Burden of Influenza in the Outpatient Setting: A Prospective Study in a Subtropical Area of China

Ru-ning Guo, Hui-zhen Zheng, Li-qun Huang, Yong Zhou, Xin Zhang, Chan-kun Liang, Jin-yan Lin, Jian-feng He and Jin-qing Zhang

PLOS ONE, 2012, vol. 7, issue 7, 1-7

Abstract: Objectives: To understand the incidence of outpatient influenza cases in a subtropical area of China and the associated economic burden on patients' families. Methods: A hospital-based prospective study was conducted in Zhuhai City during 2008–2009. All outpatient influenza-like illness (ILI) cases were identified in 28 sentinel hospitals. A representative sample of throat swabs from ILI cases were collected for virus isolation using Madin-Darby canine kidney cells. The incidence of outpatient influenza cases in Zhuhai was estimated on the basis of the number of influenza patients detected by the sentinel sites. A telephone survey on the direct costs associated with illness was conducted as a follow-up. Results: The incidence of influenza was estimated to be 4.1 per 1,000 population in 2008 and 19.2 per 1,000 population in 2009. Children aged

Date: 2012
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0041403

DOI: 10.1371/journal.pone.0041403

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