2026-06-14T02:29:17Zhttps://repisalud.isciii.es/rest/oai/request

oai:repisalud.isciii.es:20.500.12105/118412025-04-29T13:48:48Zcom_20.500.12105_2052com_20.500.12105_2051col_20.500.12105_19608

00925njm 22002777a 4500 dc Vega, Tomás author Lozano, José E author Meerhoff, Tamara author Snacken, René author Beauté, Julien author Jorgensen, Pernille author Ortíz de Lejarazu, Raúl author Domegan, Lisa author Mossong, Joël author Nielsen, Jens author Born, Rita author Larrauri, Amparo author Brown, Caroline author 2015-09 Objectives: Although influenza-like illnesses (ILI) and acute respiratory illnesses (ARI) surveillance are well established in Europe, the comparability of intensity among countries and seasons remains an unresolved challenge. The objective is to compare the intensity of ILI and ARI in some European countries. Design and setting: Weekly ILI and ARI incidence rates and proportion of primary care consultations were modeled in 28 countries for the 1996/1997-2013/2014 seasons using the moving epidemic method (MEM). We calculated the epidemic threshold and three intensity thresholds, which delimit five intensity levels: baseline, low, medium, high, and very high. The intensity of 2013/2014 season is described and compared by country. Results: The lowest ILI epidemic thresholds appeared in Sweden and Estonia (below 10 cases per 100 000) and the highest in Belgium, Denmark, Hungary, Poland, Serbia, and Slovakia (above 100 per 100 000). The 2009/2010 season was the most intense, with 35% of the countries showing high or very high intensity levels. The European epidemic period in season 2013/2014 started in January 2014 in Spain, Poland, and Greece. The intensity was between low and medium and only Greece reached the high intensity level, in weeks 7 to 9/2014. Some countries remained at the baseline level throughout the entire surveillance period. Conclusions: Epidemic and intensity thresholds varied by country. Influenza-like illnesses and ARI levels normalized by MEM in 2013/2014 showed that the intensity of the season in Europe was between low and medium in most of the countries. Comparing intensity among seasons or countries is essential for understanding patterns in seasonal epidemics. An automated standardized model for comparison should be implemented at national and international levels. Influenza Other Respir Viruses . 2015 Sep;9(5):234-46. 10.1111/irv.12330 1750-2659 Influenza and other respiratory viruses 26031655 http://hdl.handle.net/20.500.12105/11841 Incidence Influenza-like illnesses Primary care Surveillance Influenza surveillance in Europe: comparing intensity levels calculated using the moving epidemic method