Influenza

FluNet Summary

16 May 2016

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

National Influenza Centres (NICs) and other national influenza laboratories from 90 countries, areas or territories reported data to FluNet for the time period from 18 April 2016 to 01 May 2016 a (data as of 2016-05-13 03:33:09 UTC).The WHO GISRS laboratories tested more than 85968 specimens during that time period. 12819 were positive for influenza viruses, of which 4580 (35.7%) were typed as influenza A and 8239 (64.3%) as influenza B. Of the sub-typed influenza A viruses, 1728 (81.5%) were influenza A(H1N1)pdm09 and 391 (18.5%) were influenza A(H3N2). Of the characterized B viruses, 353 (20.6%) belonged to the B-Yamagata lineage and 1358 (79.4%) to the B-Victoria lineage.

Global circulation of influenza viruses
(GISRS-FluNet, snapshot 13 May 2016)

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aThe time period from 18 April 2016 to 01 May 2016 corresponds to

  • FluNet / American calendar / International standard ISO 8601: weeks 16 and 17

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