Giuseppe
Emeritus
[Source: Eurosurveillance, full text: (LINK). Abstract, edited.]
L Filleul (
)<SUP>1</SUP>, E Brottet<SUP>1</SUP>, B A Gauzere<SUP>2</SUP>, A Winer<SUP>3</SUP>, D Vandroux<SUP>2</SUP>, A Michault<SUP>4</SUP>, M C Jaffar-Bandjee<SUP>5</SUP>, S Larrieu<SUP>1</SUP>
Citation style for this article: Filleul L, Brottet E, Gauzere BA, Winer A, Vandroux D, Michault A, Jaffar-Bandjee MC, Larrieu S. R?union, a sentinel territory for influenza surveillance in Europe. Euro Surveill. 2012;17(27)
ii=20212. Available online: http://www.eurosurveillance.org/ViewArticle.aspx?ArticleId=20212
Date of submission: 03 February 2012 <HR>In R?union, a French overseas territory located in the southern hemisphere, increase in influenza activity is generally observed several months earlier than in Europe. Influenza activity is monitored in R?union through a multi-source surveillance system including sentinel practitioners network, hospital emergency department, laboratory and mortality. Since 2009, three successive influenza epidemics occurred on the island. The largest was observed in 2009 while epidemics in 2010 and 2011 were much weaker. In terms of circulating strains, B viruses were predominant at the beginning of the 2009 epidemic but they were completely evicted once A(H1N1)pdm09 circulation started. In 2010, A(H1N1)pdm09 virus was predominant again, but a constant co-circulation of B viruses was observed. In 2011, A(H3N2) virus circulated. The same viruses were identified a few months later in mainland France in the respective seasons. Since 2009, virus circulation, epidemiological trends and health impact of influenza have been similar to those observed in Europe. Influenza surveillance in R?union may therefore give reliable early information which should be considered apart from the surveillance in mainland France. Then, it might be even a more suitable predictor for Europe than other temperate southern hemisphere countries.
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Eurosurveillance, Volume 17, Issue 27, 05 July 2012
Surveillance and outbreak reports
R?union, a sentinel territory for influenza surveillance in Europe
Surveillance and outbreak reports
R?union, a sentinel territory for influenza surveillance in Europe
L Filleul (
- Cire oc?an Indien (Cire OI), Institut de Veille Sanitaire (InVS), Saint Denis, R?union, France
- Intensive Care Unit, Regional Hospital Centre of Saint-Denis, R?union, France
- Intensive Care Unit, Regional Hospital Centre of Saint-Pierre, R?union, France
- Laboratory of Biology-Parasitology-Virology-Hygiene, Regional Hospital Centre of Saint-Pierre, R?union, France
- Laboratory for Microbiology, Regional Hospital Centre of Saint-Denis, R?union, France
Citation style for this article: Filleul L, Brottet E, Gauzere BA, Winer A, Vandroux D, Michault A, Jaffar-Bandjee MC, Larrieu S. R?union, a sentinel territory for influenza surveillance in Europe. Euro Surveill. 2012;17(27)
ii=20212. Available online: http://www.eurosurveillance.org/ViewArticle.aspx?ArticleId=20212 Date of submission: 03 February 2012 <HR>In R?union, a French overseas territory located in the southern hemisphere, increase in influenza activity is generally observed several months earlier than in Europe. Influenza activity is monitored in R?union through a multi-source surveillance system including sentinel practitioners network, hospital emergency department, laboratory and mortality. Since 2009, three successive influenza epidemics occurred on the island. The largest was observed in 2009 while epidemics in 2010 and 2011 were much weaker. In terms of circulating strains, B viruses were predominant at the beginning of the 2009 epidemic but they were completely evicted once A(H1N1)pdm09 circulation started. In 2010, A(H1N1)pdm09 virus was predominant again, but a constant co-circulation of B viruses was observed. In 2011, A(H3N2) virus circulated. The same viruses were identified a few months later in mainland France in the respective seasons. Since 2009, virus circulation, epidemiological trends and health impact of influenza have been similar to those observed in Europe. Influenza surveillance in R?union may therefore give reliable early information which should be considered apart from the surveillance in mainland France. Then, it might be even a more suitable predictor for Europe than other temperate southern hemisphere countries.