Details:

Alternative Title:
Emerg Infect Dis
Publisher's site:
http://dx.doi.org/10.3201/eid2206.151752
Personal Author:
Wu, Peng ; Peng, Zhibin ; Fang, Vicky J. ; Feng, Luzhao ; Tsang, Tim K. ; ... More +
Wu, Peng ; Peng, Zhibin ; Fang, Vicky J. ; Feng, Luzhao ; Tsang, Tim K. ; Jiang, Hui ; Lau, Eric H.Y. ; Yang, Juan ; Zheng, Jiandong ; Qin, Ying ; Li, Zhongjie ; Leung, Gabriel M. ; Yu, Hongjie ; Cowling, Benjamin J. ; Less -
Description:
Since March 2013, a novel influenza A(H7N9) virus has caused 3 epidemic waves of human infection in mainland China. We analyzed data from patients with laboratory-confirmed influenza A(H7N9) virus infection to estimate the risks for severe outcomes after hospitalization across the 3 waves. We found that hospitalized patients with confirmed infections in waves 2 and 3 were younger and more likely to be residing in small cities and rural areas than were patients in wave 1; they also had a higher risk for death, after adjustment for age and underlying medical conditions. Risk for death among hospitalized patients during waves 2 and 3 was lower in Jiangxi and Fujian Provinces than in eastern and southern provinces. The variation in risk for death among hospitalized case-patients in different areas across 3 epidemic waves might be associated with differences in case ascertainment, changes in clinical management, or virus genetic diversity.
Subject:
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Adolescent
Adult
Aged
Aged, 80 And Over
Animals
Child
Child, Preschool
Disease Outbreaks
Female
Genotype
Geography, Medical
History, 21st Century
Hospitalization
Humans
Infant
Infant, Newborn
Influenza, Human/epidemiology
Influenza, Human/history
Influenza, Human/transmission
Influenza, Human/virology
Influenza A Virus, H7N9 Subtype
Male
Middle Aged
Mortality
Population Surveillance
Synopsis
Young Adult

Source:
Emerg Infect Dis. 22(6):964-972.
Pubmed ID:
27191934
Pubmed Central ID:
PMC4880089
Document Type:
Journal Article ;
Place as Subject:
China ;
Collection(s):
Emerging Infectious Diseases
Main Document Checksum:
[+]
urn:sha256:43ec7594f234dceb05f5de100e5f675e21e00db95d5767f0e8872d8911e20ddb
File Type:

Supporting Files

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