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Article: A two-year surveillance of 2009 pandemic influenza A (H1N1) in Guangzhou, China: from pandemic to seasonal influenza?
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TitleA two-year surveillance of 2009 pandemic influenza A (H1N1) in Guangzhou, China: from pandemic to seasonal influenza?
 
AuthorsLi, T1
Fu, C1
Di, B1
Wu, J1
Yang, Z1
Wang, Y1
Li, M1
Lu, J1
Chen, Y1
Lu, E1
Geng, J1
Hu, W1
Dong, Z1
Li, MF3
Zheng, BJ2
Cao, KY3
Wang, M1
 
Issue Date2011
 
PublisherPublic Library of Science. The Journal's web site is located at http://www.plosone.org/home.action
 
CitationPLoS One, 2011, v. 6 n. 11, article no. e28027 [How to Cite?]
DOI: http://dx.doi.org/10.1371/journal.pone.0028027
 
AbstractIn this two-years surveillance of 2009 pandemic influenza A (H1N1) (pH1N1) in Guangzhou, China, we reported here that the scale and duration of pH1N1 outbreaks, severe disease and fatality rates of pH1N1 patients were significantly lower or shorter in the second epidemic year (May 2010-April 2011) than those in the first epidemic year (May 2009-April 2010) (P<0.05), but similar to those of seasonal influenza (P>0.05). Similar to seasonal influenza, pre-existing chronic pulmonary diseases was a risk factor associated with fatal cases of pH1N1 influenza. Different from seasonal influenza, which occurred in spring/summer seasons annually, pH1N1 influenza mainly occurred in autumn/winter seasons in the first epidemic year, but prolonged to winter/spring season in the second epidemic year. The information suggests a tendency that the epidemics of pH1N1 influenza may probably further shift to spring/summer seasons and become a predominant subtype of seasonal influenza in coming years in Guangzhou, China.
 
ISSN1932-6203
2012 Impact Factor: 3.73
2012 SCImago Journal Rankings: 1.512
 
DOIhttp://dx.doi.org/10.1371/journal.pone.0028027
 
PubMed Central IDPMC3220710
 
ISI Accession Number IDWOS:000297789200053
Funding AgencyGrant Number
Science and Information Technology of Guangzhou2010YIC09
Ministry of Science and Technology of the People's Republic of China2009ZX10004-306
2009ZX10004-213
Funding Information:

This study was supported by Science and Information Technology of Guangzhou (grant number 2010YIC09), and the Ministry of Science and Technology of the People's Republic of China (grant number 2009ZX10004-306 and 2009ZX10004-213). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.

 
ReferencesReferences in Scopus
 
DC FieldValue
dc.contributor.authorLi, T
 
dc.contributor.authorFu, C
 
dc.contributor.authorDi, B
 
dc.contributor.authorWu, J
 
dc.contributor.authorYang, Z
 
dc.contributor.authorWang, Y
 
dc.contributor.authorLi, M
 
dc.contributor.authorLu, J
 
dc.contributor.authorChen, Y
 
dc.contributor.authorLu, E
 
dc.contributor.authorGeng, J
 
dc.contributor.authorHu, W
 
dc.contributor.authorDong, Z
 
dc.contributor.authorLi, MF
 
dc.contributor.authorZheng, BJ
 
dc.contributor.authorCao, KY
 
dc.contributor.authorWang, M
 
dc.date.accessioned2012-08-08T08:52:00Z
 
dc.date.available2012-08-08T08:52:00Z
 
dc.date.issued2011
 
dc.description.abstractIn this two-years surveillance of 2009 pandemic influenza A (H1N1) (pH1N1) in Guangzhou, China, we reported here that the scale and duration of pH1N1 outbreaks, severe disease and fatality rates of pH1N1 patients were significantly lower or shorter in the second epidemic year (May 2010-April 2011) than those in the first epidemic year (May 2009-April 2010) (P<0.05), but similar to those of seasonal influenza (P>0.05). Similar to seasonal influenza, pre-existing chronic pulmonary diseases was a risk factor associated with fatal cases of pH1N1 influenza. Different from seasonal influenza, which occurred in spring/summer seasons annually, pH1N1 influenza mainly occurred in autumn/winter seasons in the first epidemic year, but prolonged to winter/spring season in the second epidemic year. The information suggests a tendency that the epidemics of pH1N1 influenza may probably further shift to spring/summer seasons and become a predominant subtype of seasonal influenza in coming years in Guangzhou, China.
 
dc.description.naturepublished_or_final_version
 
dc.identifier.citationPLoS One, 2011, v. 6 n. 11, article no. e28027 [How to Cite?]
DOI: http://dx.doi.org/10.1371/journal.pone.0028027
 
dc.identifier.doihttp://dx.doi.org/10.1371/journal.pone.0028027
 
dc.identifier.hkuros203922
 
dc.identifier.isiWOS:000297789200053
Funding AgencyGrant Number
Science and Information Technology of Guangzhou2010YIC09
Ministry of Science and Technology of the People's Republic of China2009ZX10004-306
2009ZX10004-213
Funding Information:

This study was supported by Science and Information Technology of Guangzhou (grant number 2010YIC09), and the Ministry of Science and Technology of the People's Republic of China (grant number 2009ZX10004-306 and 2009ZX10004-213). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.

 
dc.identifier.issn1932-6203
2012 Impact Factor: 3.73
2012 SCImago Journal Rankings: 1.512
 
dc.identifier.issue11, article no. e28027
 
dc.identifier.pmcidPMC3220710
 
dc.identifier.pmid22125653
 
dc.identifier.scopuseid_2-s2.0-81355136066
 
dc.identifier.urihttp://hdl.handle.net/10722/157657
 
dc.identifier.volume6
 
dc.languageeng
 
dc.publisherPublic Library of Science. The Journal's web site is located at http://www.plosone.org/home.action
 
dc.publisher.placeUnited States
 
dc.relation.ispartofPLoS One
 
dc.relation.referencesReferences in Scopus
 
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License
 
dc.subject.meshChina - epidemiology
 
dc.subject.meshInfluenza A Virus, H1N1 Subtype - isolation and purification
 
dc.subject.meshInfluenza, Human - epidemiology - virology
 
dc.subject.meshPandemics
 
dc.subject.meshSentinel Surveillance
 
dc.titleA two-year surveillance of 2009 pandemic influenza A (H1N1) in Guangzhou, China: from pandemic to seasonal influenza?
 
dc.typeArticle
 
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Author Affiliations
  1. Guangdong Center for Disease Control and Prevention
  2. The University of Hong Kong
  3. Sun Yat-Sen University