Global Avian Influenza Viruses with Zoonotic Potential situation update
28 December 2023, 08:30 hours; Rome
Overview
This update covers avian influenza viruses (AIV) with zoonotic potential occurring worldwide, i.e. H5Nx, H7Nx high pathogenicity avian influenza (HPAI) viruses and H3N8, H5Nx, H6N1, H7Nx, H9N2, H10N3, H10N7, H10N8 and H11 low pathogenicity avian influenza (LPAI).
Specific information is available for Avian Influenza A(H7N9) virus viruses and Sub-Saharan Africa HPAI in related FAO Avian Influenza situation updates.
HPAI outbreaks in animals officially reported since last update (28 September 2023): in total, 715 outbreaks/events have been reported in four geographic regions caused by H5Nx (101), H5N1 (580), H5N5 (2), H5N6 (28), H7N6 (2) and HxNx (2). (see Table 1 for details)
LPAI events in animals officially reported since the last update (30 November 2023): 15 new events were reported.
Number of human cases officially reported since last update (30 November 2023): 3 new events were reported.1,2
1 https://www.info.gov.hk/gia/general/...htm?fontSize=1
2 https://cdn.who.int/media/docs/defau...ember-2023.pdf
Map 1. Global distribution of AIV with zoonotic potential* observed since 1 October 2023 (i.e. current wave)

Note: Symbols may overlap for events in similar geographic locations.
* includes H5Nx HPAI viruses.
Map 2. Global distribution of AIV with zoonotic potential* observed in the period 1 October 2022 to 30 September 2023 (i.e. previous wave)

Note: Symbols may overlap for events in similar geographic locations.
* includes H5Nx, H7Nx high pathogenicity avian influenza (HPAI) viruses and H3N8, H5Nx, H7Nx and H9N2 low pathogenicity avian influenza (LPAI).
Table 1. High pathogenicity avian influenza viruses with zoonotic potential
Data was retrieved from WOAH WAHIS portal, government websites. Data cut off time: reported on 28 December 2023 8:30 CEST. $:estimate.
§ During the reporting period, China (Hong Kong SAR) also reported two H5 in Eurasian wigeons and three H5N1 detections in a Pin-tailed snipe and Eurasian teals (pathogenicity unknown).
The full list of bird and mammalian species affected by H5Nx HPAI are available HERE.
Notes: Only those reporting events in animals since 24 August 2023 are listed in the table, those reporting for the first time since 1 October 2023 in orange. Codes: D:domestic, C:captivity, W:wild birds, F: Feral, E:Environment, M: mammalian species other than humans, example: W123 indicates 123 wild birds affected. EA: Fully Eurasian; rEN: Reassortment Eurasian and North American.
1 the total includes events with sample collection date since 1 October 2023 data issued from the Canada Food and Inspection Agency dashboard [link]
2 a detailed list of wild bird species affected, consult weekly findings report on avian influenza in wild birds from Animal and Plant Health Agency (APHA) [link]
3 for more information, consult dedicated webpage of the USDA Animal and Plant Health Inspection Service (USDA/APHIS) [link]
Table 2. Low Pathogenicity Avian Influenza A Viruses with zoonotic potential: events reported in animals or the environment since 1 October 2023
Source: Veterinary authorities.
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28 December 2023, 08:30 hours; Rome
Overview
This update covers avian influenza viruses (AIV) with zoonotic potential occurring worldwide, i.e. H5Nx, H7Nx high pathogenicity avian influenza (HPAI) viruses and H3N8, H5Nx, H6N1, H7Nx, H9N2, H10N3, H10N7, H10N8 and H11 low pathogenicity avian influenza (LPAI).
Specific information is available for Avian Influenza A(H7N9) virus viruses and Sub-Saharan Africa HPAI in related FAO Avian Influenza situation updates.
HPAI outbreaks in animals officially reported since last update (28 September 2023): in total, 715 outbreaks/events have been reported in four geographic regions caused by H5Nx (101), H5N1 (580), H5N5 (2), H5N6 (28), H7N6 (2) and HxNx (2). (see Table 1 for details)
LPAI events in animals officially reported since the last update (30 November 2023): 15 new events were reported.
Number of human cases officially reported since last update (30 November 2023): 3 new events were reported.1,2
1 https://www.info.gov.hk/gia/general/...htm?fontSize=1
2 https://cdn.who.int/media/docs/defau...ember-2023.pdf
Map 1. Global distribution of AIV with zoonotic potential* observed since 1 October 2023 (i.e. current wave)

Note: Symbols may overlap for events in similar geographic locations.
* includes H5Nx HPAI viruses.
Map 2. Global distribution of AIV with zoonotic potential* observed in the period 1 October 2022 to 30 September 2023 (i.e. previous wave)

Note: Symbols may overlap for events in similar geographic locations.
* includes H5Nx, H7Nx high pathogenicity avian influenza (HPAI) viruses and H3N8, H5Nx, H7Nx and H9N2 low pathogenicity avian influenza (LPAI).
Table 1. High pathogenicity avian influenza viruses with zoonotic potential
H5 | Canada1 | 16/11/2023 | 1 (in W) |
15$ (in W) |
Common Goldeneye, Rough-legged Buzzard |
Colombia | 19/12/2023 | 2 | 6 | Unspecified domestic birds | |
France | 18/12/2023 | 5 | 6 | Unspecified domestic birds | |
Japan | 23/12/2023 | 11 (incl. W8, C1, E2) |
11 (incl. W8, C1, E2) |
Eurasian wigeon, Harris's Hawk, Large-billed crow, White-tailed eagle; Feces of Anatidae, fly | |
The Republic of Korea | 25/12/2023 | 1 | 1 | Duck | |
Peru | 06/12/2023 | 59 (inclu. W4) |
255 (inclu. W36) |
Magnificent Frigatebird, Peruvian Booby, Waved albatross | |
South Africa | 25/10/2023 | 1 | 14 | Poultry | |
Ukraine | 22/12/202 | 1 (in W) |
1 (in W) |
Mute Swan | |
United Kingdom of Great Britain and Northern Ireland2 | Week 48 | 1 (in W) |
3 (in W) |
Greylag Goose, Herring Gull, Merlin | |
United States of America3 | 17/12/2023 | 19 (in W) |
76 (in W) |
American green-winged teal, American wigeon, Double-crested cormorant, Herring gull, Mallard, Northern pintail, Northern shoveler, Wood duck | |
H5N1 | Austria | 05/12/2023 | 4 (in W) |
14 (incl. W12) |
Common Crane, Mute Swan |
Belgium | 10/12/2023 | 4 (incl. W2) |
4 (incl. W2) |
Eurasian Curlew, Peregrin Falcon | |
Brazil | 12/12/2023 | 3 (in W) |
41 (incl. W36, M5) |
Manx Shearwater, Neotropic cormorant, Royal Tern | |
Cambodia | 06/12/2023 | 1 | 5 | Poultry | |
Canada1 | 09/12/2023 | 14 (incl. W3, M3, rEN) |
56 (incl. W5, M4, EA, rEN) |
Unspecified domestic birds; American green-winged Teal, Bald Eagle, Black-billed Magpie, Canada Goose, Common Goldeneye, Common Raven, Gadwall, Great Horned Owl, Greater white-fronted Goose, Ring-billed Gull, Rock Pigeon, Swainson's Hawk, Western Grebe; Cat, Red Fox, Striped skunk | |
China§ | 21/12/2023 | 7 (incl. W3, E1) |
11 (incl. W3, E2) |
Chicken, goose; Black-faced spoonbill, Eurasian Wigeon, Falcated Duck; faecal dropping | |
Croatia | 14/11/2023 | 1 (in W) |
2 (incl. W1) |
Common Crane | |
Denmark | 05/12/2023 | 15 (incl. W14) |
17 (incl. W14) |
Chicken, Duck; Barnacle Goose, Black-headed Gull, Eurasian Buzzard, Eurasian Wigeon, Greylag Goose, Mute Swan, Northern Pintail, Peregrine Falcon, Whooper Swan | |
Ecuador | 04/12/2023 | 1 | 6 (incl. W5) |
Chickens, Ducks and Geese | |
Falkland Islands (Malvinas) |
30/10/2023 | 1 (in W) |
1 (in W) |
Black-Browed Albatross, Southern Fulmar | |
Finland | 15/12/2023 | 12 (in M) |
49 (incl. W3, M46) |
American Mink, Arctic Fox, Raccoon Dog, Red Fox | |
France | 11/12/2023 | 6 (in W) |
7 (in W) |
Common Crane, Eurasian Buzzard, Eurasian Oystercatcher, Great Black-backed Gull, Herring Gull | |
Germany | 21/12/2023 | 33 (incl. W18) |
50 (incl. W31) |
Duck, Chicken, Goose, Turkey, Unspecified Domestic Birds; Accipitridae, Anatidae, Swan, Gruidae, Laridae, Strigidae | |
Hungary | 21/12/2023 | 43 (incl. W10) |
111 (incl. W42) |
Unspecified Domestic Birds; Black-Headed Gull, Common Crane, Great Egret, Greater White-fronted Goose, Grey Heron | |
India | 28/02/2023 | 1 | 13 (incl. W12) |
Unspecified Domestic Birds | |
Israel | 05/12/2023 | 3 | 5 (incl. W2) |
Unspecified domestic birds | |
Italy | 14/12/2023 | 7 (incl. W6) |
18 (incl. W13) |
Unspecified domestic birds; Common Crane, Common Teal, Eurasian Curlew | |
Japan | 21/12/2023 | 21 (incl. W15, E5) |
75 (incl. W59, C1, E11) |
Chicken; Dunlin, Herring gull, Hooded crane, Large-billed crow, Northern pintail, Tufted duck, White-naped crane, Whooper swan; Anatidae feces, waterfrom crane habitat | |
The Republic of Korea | 20/12/2023 | 7* (incl. W3) |
8* (incl. W4) |
Meat Duck; Eurasian Wigeon, wild bird carcass * Including H5N1, H5N6 mix infection on a duck farm |
|
Lithuania | 18/12/202 | 1 | 1 | Turkey | |
Mexico | 07/12/2023 | 1 (in W) |
7 (incl. W4) |
Northern Pintail | |
Republic of Moldova | 25/12/2023 | 15 (in W) |
15 (in W) |
Swan, Mute Swan | |
Netherlands (Kingdom of the) | 08/12/2023 | 9 (incl. W8) |
23 (incl. W18, C1) |
Poultry; Bean Goose, Greylag Goose, Herring Gull, Mallard, Peregrine Falcon | |
Poland | 20/12/2023 | 5 (incl. W1) |
8 (incl. W1) |
Poultry | |
Romania | 21/12/2023 | 3 (incl. W2) |
12 (incl. W9) |
Poultry, Mute Swan, Whooper Swan | |
Spain | 04/12/2023 | 6 (in W) |
10 (in W) |
Black-headed Gull, Common Crane, Yellow-legged Gull | |
Sweden | 11/12/2023 | 4 (in W) |
10 (in W) |
Barnacle Goose | |
United Kingdom2 | 14/12/2023 | 3 (in W) |
16 (in W11) |
Unspecified poultry; Greylag Goose, Herring Gull, Merlin | |
United States of America3 | 21/12/2023 | 349 (incl. W279, EA, rEN) |
1 407 (incl. W1199, M1, EA, rEN) |
Chicken, Duck, Turkey, Gamebird, Unspecified poultry; American black duck, American green-winged teal, American wigeon, Bald eagle, Black vulture, Blue-winged teal, Cackling goose, Canada goose, Canvasback, Cinnamon teal, Common raven, Gadwall, Great horned owl, Greater white-fronted goose, Lesser scaup, Mallard, Mottled duck, Northern pintail, Northern shoveler, Peregrine falcon, Redhead duck, Red-tailed hawk, Ring-necked duck, Ross's goose, Sanderling, Snow goose, Sparrow, Swan, Trumpeter swan, Tundra swan, Wild turkey, Wood duck | |
H5N5 | Canada | 29/06/2023 | 1 (in W) |
2 (in W) |
European Herring Gull, Great Black-backed Gull |
Iceland | 17/11/2023 | 1 (in W) |
6 (in W) |
Common Raven | |
H5N6 | Japan | 06/12/2023 | 1 (in W) |
1 (in W) |
Peregrine falcon |
The Republic of Korea | 19/12/202 | 27* (incl. W6) |
27* (incl. W6) |
Chicken, Duck; Mandarin Duck, Mallard, Whooper Swan, Wild bird captured/carcass, Wild bird faeces * Including H5N1, H5N6 mix infection on a duck farm |
|
H7N6 | South Africa | 24/11/2023 | 2 | 61 | Poultry |
HxNx | Indonesia | December | 1 | Unspecified Domestic Birds | |
Viet Nam | 14/12/2023 | >=1 | >15 (total since 01/01/2023) |
Poultry |
§ During the reporting period, China (Hong Kong SAR) also reported two H5 in Eurasian wigeons and three H5N1 detections in a Pin-tailed snipe and Eurasian teals (pathogenicity unknown).
The full list of bird and mammalian species affected by H5Nx HPAI are available HERE.
Notes: Only those reporting events in animals since 24 August 2023 are listed in the table, those reporting for the first time since 1 October 2023 in orange. Codes: D:domestic, C:captivity, W:wild birds, F: Feral, E:Environment, M: mammalian species other than humans, example: W123 indicates 123 wild birds affected. EA: Fully Eurasian; rEN: Reassortment Eurasian and North American.
1 the total includes events with sample collection date since 1 October 2023 data issued from the Canada Food and Inspection Agency dashboard [link]
2 a detailed list of wild bird species affected, consult weekly findings report on avian influenza in wild birds from Animal and Plant Health Agency (APHA) [link]
3 for more information, consult dedicated webpage of the USDA Animal and Plant Health Inspection Service (USDA/APHIS) [link]
Table 2. Low Pathogenicity Avian Influenza A Viruses with zoonotic potential: events reported in animals or the environment since 1 October 2023
H5 | The Republic of Korea | 04/12/2023 | 1 (in E) |
3 (incl. W1, E2) |
Wild bird carcass; wild bird faeces |
H5N2 | The Republic of Korea | 06/11/2023 | 0 | 2 (incl. W1, E1) |
Wild bird faeces |
H5N3 | Japan | 11/10/2023 | 1 (in W) |
1 (in W) |
Mallard |
The Republic of Korea | 13/12/2023 | 11 (in E) |
41 (incl. W2, E38) |
Meat duck; a captured wild bird, wild bird faeces | |
H7N1 | The Republic of Korea | 05/12/2023 | 1 (in E) |
1 (in E) |
Wild bird faeces |
H7N7 | The Republic of Korea | 05/12/2023 | 1 (in W) |
1 (in W) |
A captured wild bird |
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