During 2009 influenza A(H1N1) pandemic, 925.861 cases of influenza-like syndromes (ILI) and 7.202.014 cases of acute respiratory infections (ARI) have been reported by European Influenza Surveillance Network (EISN). Whilst the site of initial infection is likely to be the upper airway, in certain hosts with unrecognized predisposing factors or for possible variants of 2009 A(H1N1) virus strains, the primary site of active viral replication may be the lower respiratory tract. Pandemic 2009 influenza A(H1N1) virus infection has been shown to affect lower airways causing serious illness and death in patients with underlying medical conditions such as asthma, obesity, heart, lung and neurological diseases and pregnancy. Similar outcomes have been reported in previously healthy individuals although predictive factors for severe disease in this patient group have not been identified.

Le infezioni da Virus A(H1N1): update ad un anno dalla emergenza

BIANCO, Andrea
2010

Abstract

During 2009 influenza A(H1N1) pandemic, 925.861 cases of influenza-like syndromes (ILI) and 7.202.014 cases of acute respiratory infections (ARI) have been reported by European Influenza Surveillance Network (EISN). Whilst the site of initial infection is likely to be the upper airway, in certain hosts with unrecognized predisposing factors or for possible variants of 2009 A(H1N1) virus strains, the primary site of active viral replication may be the lower respiratory tract. Pandemic 2009 influenza A(H1N1) virus infection has been shown to affect lower airways causing serious illness and death in patients with underlying medical conditions such as asthma, obesity, heart, lung and neurological diseases and pregnancy. Similar outcomes have been reported in previously healthy individuals although predictive factors for severe disease in this patient group have not been identified.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11591/329182
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