Author: Gerna, Giuseppe; Percivalle, Elena; Piralla, Antonio; Rognoni, Vanina; Marchi, Antonietta; Baldanti, Fausto
Title: Surveillance of influenza virus B circulation in Northern Italy: summer-fall 2008 isolation of three strains and phylogenetic analysis. Cord-id: 2ygv295s Document date: 2009_1_1
ID: 2ygv295s
Snippet: Influenza virus type B strains were unexpectedly detected and isolated in Italy during summer-fall 2008 from three patients travelling to Italy from Lebanon, Senegal and Uzbekistan. The three summer-fall strains matched to a high degree the hemagglutinin (HA1) of influenza virus type B strains circulating in Italy in the second part (January through April) of the 2007/2008 season, and HA1 of the type B strains included in the 2008/2009 vaccine (B/Yamagata/16/88 lineage). Surveillance of influenz
Document: Influenza virus type B strains were unexpectedly detected and isolated in Italy during summer-fall 2008 from three patients travelling to Italy from Lebanon, Senegal and Uzbekistan. The three summer-fall strains matched to a high degree the hemagglutinin (HA1) of influenza virus type B strains circulating in Italy in the second part (January through April) of the 2007/2008 season, and HA1 of the type B strains included in the 2008/2009 vaccine (B/Yamagata/16/88 lineage). Surveillance of influenza virus circulation in Western countries also during the summer-fall season may help to trace and anticipate the appearance of new influenza virus variants.
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