Page 11 - Avian Virology: Current Research and Future Trends

4 | Perez et al.

Table 1.1 Continued
Year Location Subtype Species Impact
2014–present Asia H5N6 Chicken, duck, wild birds 29 million birds culled
2014–present Asia, Europe H5N8 Chicken, turkey, duck, wild birds > 3 million birds culled, thousands dead
2015–2016 Europe H7N7 Chicken 220,000 chickens destroyed
2015–2017 France H5N1/N2/N8/N9 Chicken, duck, guinea fowl, wild birds > 1.3 million birds culled
2016 USA H7N8 (HPAIV/ Turkeys > 400,000 turkeys and chickens culled
LPAIV)
2016–present Africa H5N8 Chicken, duck, wild birds > 1.5 million birds culled
2016–2018 Europe H5N5 Wild birds Hundreds of birds dead
2017 Algeria H7N1 Wild birds 1000 birds culled
2017 USA H7N9, H5N2 Chicken, wild birds > 100,000 birds culled
(LPAIV)
2017–2018 Russia H5N2 Terrestrial poultry 660,000 birds culled
2017–present Europe H5N6 Duck, wild birds Hundreds of wild birds dead, > 15,000
ducks culled

Figure 1.1 Influenza A virus structure. (A) Schematic of influenza A virion and proteins. (B) Determinants of the pathogenicity of avian

influenza viruses in poultry.