Influenza

FluNet Summary

14 July 2014

Source: Laboratory confirmed data from the Global Influenza Surveillance and Response System (GISRS).

Based on FluNet reporting (as of 14 July 2014, 14:55 UTC), during weeks 25 to 26 (15 June 2014 to 28 June 2014), National Influenza Centres (NICs) and other national influenza laboratories from 70 countries, areas or territories reported data. The WHO GISRS laboratories tested more than 29 795 specimens. 2748 were positive for influenza viruses, of which 2230 (81.2%) were typed as influenza A and 517 (18.8%) as influenza B. Of the sub-typed influenza A viruses, 257 (12.9%) were influenza A(H1N1)pdm09 and 1740 (87.1%) were influenza A(H3N2). Of the characterized B viruses, 123 (93.9%) belong to the B-Yamagata lineage and 8 (6.1%) to the B-Victoria lineage.

Global circulation of influenza viruses
(GISRS-FluNet, snapshot 14 July 2014)

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