20 October 2014
Based on FluNet reporting (as of 16 October 2014, 16:05 UTC), during weeks 39 to 40 (21 September 2014 to 4 October 2014), National Influenza Centres (NICs) and other national influenza laboratories from 53 countries, areas or territories reported data. The WHO GISRS laboratories tested more than 34 991 specimens. 1465 were positive for influenza viruses, of which 1001 (68.3%) were typed as influenza A and 464 (31.7%) as influenza B. Of the sub-typed influenza A viruses, 96 (12.9%) were influenza A(H1N1)pdm09, 649 (87%) were influenza A(H3N2) and 1 (0.1%) was influenza A(H5). Of the characterized B viruses, 99 (99%) belonged to the B-Yamagata lineage and 1 (1%) to the B-Victoria lineage.
Due to changes in data collection platforms, data from the WHO Regional Office for Europe are temporarily not available at global level. Those data will be uploaded to FluNet and FluID as soon as possible. Information on European influenza activity can be found at http://www.flunewseurope.org/
Global circulation of influenza viruses
(GISRS-FluNet, snapshot 16 October 2014)