Influenza

FluNet Summary

11 August 2014

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

Based on FluNet reporting (as of 11 August 2014, 10:00 UTC), during weeks 29 to 30 (13 July 2014 to 26 July 2014), National Influenza Centres (NICs) and other national influenza laboratories from 51 countries, areas or territories reported data. The WHO GISRS laboratories tested more than 16203 specimens. 1579 were positive for influenza viruses, of which 1274(80.6%) were typed as influenza A and 305(19.3%) as influenza B. Of the sub-typed influenza A viruses, 426(42.9%) were influenza A(H1N1)pdm09 and 568 (57.1%) were influenza A(H3N2). Of the characterized B viruses, 21 (56.8%) belong to the B-Yamagata lineage and 16 (43.2%) to the B-Victoria lineage.

Global circulation of influenza viruses
(GISRS-FluNet, snapshot 13 August 2014)

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