Influenza

FluNet Summary

10 July 2017

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

National Influenza Centres (NICs) and other national influenza laboratories from 83 countries, areas or territories reported data to FluNet for the time period from 12 June 2017 to 25 June 2017 a (data as of 2017-07-07 03:57:22 UTC). The WHO GISRS laboratories tested more than 56574 specimens during that time period. 5109 were positive for influenza viruses, of which 4101 (80.3%) were typed as influenza A and 1008 (19.7%) as influenza B. Of the sub-typed influenza A viruses, 447 (14.3%) were influenza A(H1N1)pdm09 and 2688 (85.7%) were influenza A(H3N2). Of the characterized B viruses, 165 (49.4%) belonged to the B-Yamagata lineage and 169 (50.6%) to the B-Victoria lineage.

Global circulation of influenza viruses
(GISRS-FluNet, snapshot 07 July 2017)

View full size chart
pdf, 363kb

aThe time period from 12 June 2017 to 25 June 2017 corresponds to

  • FluNet / American calendar / International standard ISO 8601: weeks 24 and 25

Other analyses