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Overview of three influenza seasons in Georgia, 2014–2017

Fig 5

HA gene phylogeny of influenza A/H3N2 viruses detected in Georgia during three influenza seasons 2014–2017.

Vaccine viruses are indicated in red; 2014–2015, 2015–2016 and 2016–2017 viruses from Georgia in blue, pink and brown respectively. Reference and vaccine viruses against which post-infection ferret antisera were raised for use in HI assays are in bold type. The scale bar represents nucleotide substitutions per site.

Fig 5