Influenza

FluNet Summary

25 July 2016

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

National Influenza Centres (NICs) and other national influenza laboratories from 65 countries, areas or territories reported data to FluNet for the time period from 27 June 2016 to 10 July 2016 a (data as of 2016-07-22 04:17:11 UTC). The WHO GISRS laboratories tested more than 44063 specimens during that time period. 2366 were positive for influenza viruses, of which 1571 (66.4%) were typed as influenza A and 795 (33.6%) as influenza B. Of the sub-typed influenza A viruses, 601 (57.2%) were influenza A(H1N1)pdm09 and 450 (42.8%) were influenza A(H3N2). Of the characterized B viruses, 105 (34%) belonged to the B-Yamagata lineage and 204 (66%) to the B-Victoria lineage.

Global circulation of influenza viruses
(GISRS-FluNet, snapshot 22 July 2016)

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aThe time period from 27 June 2016 to 10 July 2016 corresponds to

  • FluNet / American calendar / International standard ISO 8601: weeks 26 and 27

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