Details:

Alternative Title:
Emerg Infect Dis
Personal Author:
Yu, Hongjie ; Cauchemez, Simon ; Donnelly, Christl A. ; Zhou, Lei ; Feng, Luzhao ; ... More +
Yu, Hongjie ; Cauchemez, Simon ; Donnelly, Christl A. ; Zhou, Lei ; Feng, Luzhao ; Xiang, Nijuan ; Zheng, Jiandong ; Ye, Min ; Huai, Yang ; Liao, Qiaohong ; Peng, Zhibin ; Feng, Yunxia ; Jiang, Hui ; Yang, Weizhong ; Wang, Yu ; Ferguson, Neil M. ; Feng, Zijian Less -
Description:
Pandemic influenza A (H1N1) 2009 virus spread rapidly around the world in 2009. We used multiple data sources from surveillance systems and specific investigations to characterize the transmission patterns of this virus in China during May-November 2009 and analyze the effectiveness of border entry screening and holiday-related school closures on transmission. In China, age distribution and transmission dynamic characteristics were similar to those in Northern Hemisphere temperate countries. The epidemic was focused in children, with an effective reproduction number of ≈1.2-1.3. The 8 days of national holidays in October reduced the effective reproduction number by 37% (95% credible interval 28%-45%) and increased underreporting by ≈20%-30%. Border entry screening detected at most 37% of international travel-related cases, with most (89%) persons identified as having fever at time of entry. These findings suggest that border entry screening was unlikely to have delayed spread in China by >4 days.
Subjects:
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Emigrants And Immigrants Holidays Humans Incidence Infectious Disease Incubation Period Influenza, Human Influenza A Virus, H1N1 Subtype Pandemics Population Surveillance Research Schools Travel
Source:
Emerg Infect Dis. 18(5):758-766.
Document Type:
Journal Article
Funding:
U19 AI51915/AI/NIAID NIH HHS/United States ; U54 GM088491/GM/NIGMS NIH HHS/United States ; Medical Research Council/United Kingdom
U19 AI51915/AI/NIAID NIH HHS/United States ; U54 GM088491/GM/NIGMS NIH HHS/United States ; Medical Research Council/United Kingdom Less -
Place as Subject:
China
Location:
Asia
Collection(s):
Emerging Infectious Diseases
Main Document Checksum:
[+]
urn:sha256:e6fabff17400b23290202da8e57e394550584423418c9142ffc8ada4f44e60d3
Download URL:
https://stacks.cdc.gov/view/cdc/23894/cdc_23894_DS1.pdf
File Type:

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