ArticlePloS one2013
Age distribution of influenza like illness cases during post-pandemic A(H3N2): comparison with the twelve previous seasons, in France.
Article in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.
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Who cites it
26 citing papers in PubMed.
- Structure-based Design of Chimeric Influenza Hemagglutinins to Elicit Cross-group Immunity.bioRxiv : the preprint server for biology · 2025Article
- Age-dependent influenza infection patterns and subtype circulation in Denmark, in seasons 2015/16 to 2021/22.Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin · 2024Article
- Transmission dynamics of seasonal influenza in a remote island population.Scientific reports · 2023Article
- Observational
- Study of the Etiology of Acute Respiratory Infections in Children Under 5 Years at the Dr. Agostinho Neto Hospital, Praia, Santiago Island, Cabo Verde.Frontiers in pediatrics · 2021Article
- The Implications of Zinc Therapy in Combating the COVID-19 Global Pandemic.Journal of inflammation research · 2021Review
- Characterising the epidemic spread of influenza A/H3N2 within a city through phylogenetics.PLoS pathogens · 2020Article
- Characteristics of hospitalizations with an influenza diagnosis, France, 2012-2013 to 2016-2017 influenza seasons.Influenza and other respiratory viruses · 2020Article
- Influenza epidemics observed in primary care from 1984 to 2017 in France: A decrease in epidemic size over time.Influenza and other respiratory viruses · 2019Article
- Influenza infections in Australia 2009-2015: is there a combined effect of age and sex on susceptibility to virus subtypes?BMC infectious diseases · 2019Article
- A mosaic hemagglutinin-based influenza virus vaccine candidate protects mice from challenge with divergent H3N2 strains.NPJ vaccines · 2019Article
- Article
- Distribution of influenza virus types by age using case-based global surveillance data from twenty-nine countries, 1999-2014.BMC infectious diseases · 2018Article
- Forty five percent of the Israeli population were infected with the influenza B Victoria virus during the winter season 2015-16.Oncotarget · 2018Article
- Article
- Performances of statistical methods for the detection of seasonal influenza epidemics using a consensus-based gold standard.Epidemiology and infection · 2018Article
- Article
- Improving incidence estimation in practice-based sentinel surveillance networks using spatial variation in general practitioner density.BMC medical research methodology · 2016Article
- Coherence of Influenza Surveillance Data across Different Sources and Age Groups, Beijing, China, 2008-2015.PloS one · 2016Article
- The impact of influenza virus B in Italy: myth or reality?Journal of preventive medicine and hygiene · 2016Review
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7 authors.
Funding
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Abstract
In France, the 2011-2012 influenza epidemic was characterized by the circulation of antigenically drifted influenza A(H3N2) viruses and by an increased disease severity and mortality among the elderly, with respect to the A(H1N1)pdm09 pandemic and post-pandemic outbreaks. Whether the epidemiology of influenza in France differed between the 2011-2012 epidemic and the previous outbreaks is unclear. Here, we analyse the age distribution of influenza like illness (ILI) cases attended in general practice during the 2011-2012 epidemic, and compare it with that of the twelve previous epidemic seasons. Influenza like illness data were obtained through a nationwide surveillance system based on sentinel general practitioners. Vaccine effectiveness was also estimated. The estimated number of ILI cases attended in general practice during the 2011-2012 was lower than that of the past twelve epidemics. The age distribution was characteristic of previous A(H3N2)-dominated outbreaks: school-age children were relatively spared compared to epidemics (co-)dominated by A(H1N1) and/or B viruses (including the 2009 pandemic and post-pandemic outbreaks), while the proportion of adults over 30 year-old was higher. The estimated vaccine effectiveness (54%, 95% CI (48, 60)) was in the lower range for A(H3N2) epidemics. In conclusion, the age distribution of ILI cases attended in general practice seems to be not different between the A(H3N2) pre-pandemic and post-pandemic epidemics. Future researches including a more important number of ILI epidemics and confirmed virological data of influenza and other respiratory pathogens are necessary to confirm these results.
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