Influenza A virus antigenic subtypes isolated from wild and domestic animal species in the Novosibirsk Region (2003–2011 period).

VP, virus pathogenicity.VI pos, virus isolation positive.LP, low pathogenicity; HP, high pathogenicity.* Underlining indicates year in which a specific HN subtype was prevalent, i.e. represented at least 25% of all influenza isolates for that year.UD, unpublished data.In bold, isolation data from a period in which H5N1 HPAI epizootics occurred.