Influenza

FluNet Summary

22 August 2016

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

National Influenza Centres (NICs) and other national influenza laboratories from 50 countries, areas or territories reported data to FluNet for the time period from 25 July 2016 to 07 August 2016 a (data as of 2016-08-19 04:04:59 UTC). The WHO GISRS laboratories tested more than 31890 specimens during that time period. 1654 were positive for influenza viruses, of which 1096 (66.3%) were typed as influenza A and 558 (33.7%) as influenza B. Of the sub-typed influenza A viruses, 319 (32.9%) were influenza A(H1N1)pdm09 and 652 (67.1%) were influenza A(H3N2). Of the characterized B viruses, 70 (35.7%) belonged to the B-Yamagata lineage and 126 (64.3%) to the B-Victoria lineage.

Global circulation of influenza viruses
(GISRS-FluNet, snapshot 19 August 2016)

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aThe time period from 25 July 2016 to 07 August 2016 corresponds to

  • FluNet / American calendar / International standard ISO 8601: weeks 30 and 31

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