ArticlePloS one2011
A two-year surveillance of 2009 pandemic influenza A (H1N1) in Guangzhou, China: from pandemic to seasonal influenza?
Article in PloS one, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed.
- Article
- Return of pandemic H1N1 influenza virus.BMC infectious diseases · 2014Article
- Relationships between A(H1N1)pdm09 influenza infection and infections with other respiratory viruses.Influenza and other respiratory viruses · 2014Article
- Attitudes, practices and information needs regarding novel influenza A (H7N9) among employees of food production and operation in Guangzhou, Southern China: a cross-sectional study.BMC infectious diseases · 2014Article
- Temperature, relative humidity and sunshine may be the effective predictors for occurrence of malaria in Guangzhou, southern China, 2006-2012.Parasites & vectors · 2013Article
- Risk factors associated with severe manifestations of 2009 pandemic influenza A (H1N1) infection in China: a case-control study.Virology journal · 2013Article
- A new look at an old virus: patterns of mutation accumulation in the human H1N1 influenza virus since 1918.Theoretical biology & medical modelling · 2012Article
- Males, ages ≥ 45 years, businessperson, floating population, and rural residents may be considered high-risk groups for tuberculosis infection in Guangzhou, China: a review of 136,394 tb confirmed cases.Revista do Instituto de Medicina Tropical de Sao PauloArticle
- Viral detection profile in children with severe acute respiratory infection.The Brazilian journal of infectious diseases : an official publication of the Brazilian Society of Infectious DiseasesObservational
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Authors and funding
17 authors.
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Abstract
In 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.
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