FluNet Summary
07 December 2020
National Influenza Centres (NICs) and other national influenza laboratories from 88 countries, areas or territories reported data to FluNet for the time period from 09 November 2020 to 22 November 2020 a(data as of 2020-12-04 04:24:00 UTC). The WHO GISRS laboratories tested more than 1923751 specimens during that time period. A total of 327 specimens were positive for influenza viruses, of which 162 (49.5%) were typed as influenza A and 165 (50.5%) as influenza B. Of the sub-typed influenza A viruses, 11 (20%) were influenza A(H1N1)pdm09 and 44 (80%) were influenza A(H3N2). Of the characterized B viruses, 2 (10.5%) belonged to the B-Yamagata lineage and 17 (89.5%) to the B-Victoria lineage.
Global circulation of influenza viruses
(GISRS-FluNet, snapshot 04 December 2020)
pdf, 440kb
aThe time period from 09 November 2020 to 22 November 2020 corresponds to
- MMWR / American calendar / International standard ISO 8601: weeks 46 and 47
Other analyses
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1 It includes data only from countries reporting on positive and negative influenza specimens.
