Centro Nazionale OMS per l'Influenza. Sorveglianza Virologiva dell'Influenza in Italia (Stagione 2011-2012). (WHO National Influenza Centre. Virologival Influenza Surveillance in Italy (2011-2012 Season))
(Englisch)
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Influenza is an acute respiratory illness. It occurs all over the world and causes considerable morbility and mortality every year. Vaccination is currently the main influenza prevention method. Due to the constantly changing composition of the circulating influenza viruses, the influenza vaccine must be modified each year to match the current viruses. For this reason, WHO created an international network of National Influenza Centres working together with the six WHO Collaborating Centres for Reference and Research on Influenza (Atlanta, London, Melbourne, Tokyo, Memphis, Beijing). This network helps to monitor influenza activity all over the world, it allows the timely identification of variant emerging in the interpandemic period and provides an antigenic and molecular evaluation of the variability degree of the influenza viruses circulating world-wide. This report is a summary of the surveillance data relative to the 2011-2012 influenza season in Italy.
Centro Nazionale OMS per l'Influenza. Sorveglianza Virologiva dell'Influenza in Italia (Stagione 2011-2012). (WHO National Influenza Centre. Virologival Influenza Surveillance in Italy (2011-2012 Season))