Influenza

FluNet Summary

19 September 2016

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

National Influenza Centres (NICs) and other national influenza laboratories from 68 countries, areas or territories reported data to FluNet for the time period from 22 August 2016 to 04 September 2016 a (data as of 2016-09-16 03:54:50 UTC). The WHO GISRS laboratories tested more than 42184 specimens during that time period. 2911 were positive for influenza viruses, of which 2271 (78%) were typed as influenza A and 640 (22%) as influenza B. Of the sub-typed influenza A viruses, 301 (18.6%) were influenza A(H1N1)pdm09 and 1313 (81.4%) were influenza A(H3N2). Of the characterized B viruses, 44 (24.9%) belonged to the B-Yamagata lineage and 133 (75.1%) to the B-Victoria lineage.

Global circulation of influenza viruses
(GISRS-FluNet, snapshot 16 September 2016)

View full size chart
pdf, 361kb

aThe time period from 22 August 2016 to 04 September 2016 corresponds to

  • FluNet / American calendar / International standard ISO 8601: weeks 34 and 35

Other analyses

Share