Avian influenza cases in Finland

Avian influenza in Finland in 2021

Highly pathogenic avian influenza (HPAI) was found in Finland in January 2021 after a few years’ break. Exceptionally high mortality was noticed among wild pheasants living near a pheasant farm in Janakkala, and dead birds were sent to the Finnish Food Authority for examination. Tests showed that the pheasants had carried the H5N8 highly pathogenic avian influenza with a high mortality rate. In February, the virus was seen to have spread to the birds at the nearby pheasant farm. Subsequently, highly pathogenic avian influenza has been found in wild birds across Finland. In addition to type H5N8, type H5N1 has been found as well. Highly pathogenic avian influenza has also been found in large numbers of birds in many European countries in the autumn of 2020 and in 2021 and cases have emerged in both wild birds and on poultry farms.

Map of the avian influenza cases detected in Finland in 2021 (19.11.2021)

Map of the avian influenza cases detected in Finland in 2021

 

Table of the HPAI cases detected in Finland in 2021

Case number

Date of detection

Location where the disease was found

Bird species

Avian influenza Setting up a restriction zone Revocation of the restriction zone
1 21.1.2021 Janakkala Wild pheasant High pathogen H5N8 22.1.2021 26.2.2021
2 8.2.2021 Helsinki Mute swan High pathogen H5N8 -  
3 10.2.2021 Janakkala Pheasant farm High pathogen H5N8 10.2.2021 15.3.2021
4 18.2.2021 Helsinki Northern goshawk Highly pathogenic H5N8 -  
5 25.2.2021 Helsinki Northern goshawk Highly pathogenic H5N8 -  
6 10.3.2021 Helsinki Mallard Highly pathogenic H5N8 -  
7 10.3.2021 Helsinki Common gull Highly pathogenic H5N8 -  
8 16.3.2021 Kotka Mute swan Highly pathogenic H5 -  
9 19.3.2021 Tuusula Mute swan Highly pathogenic H5 -  
10 19.3.2021 Hanko Mute swan Highly pathogenic H5N8 -  
11 23.3.2021 Helsinki Mallard Highly pathogenic H5N8 -  
12 23.23.2021 Espoo Mallard Highly pathogenic H5 -  
13 14.4.2021 Helsinki Northern goshawk Highly pathogenic H5N8 -  
14 14.4.2021 Kuopio Whooper swan Highly pathogenic H5 -  
15 5.5.2021 Salo Canada goose Highly pathogenic H5N8 -  
16 5.5.2021 Imatra Canada goose Highly pathogenic H5N8 -  
17 20.5.2021 Helsinki Barnacle goose Highly pathogenic H5N1 -  
18 27.5.2021 Kitee Barnacle goose Highly pathogenic H5N1 -  
19 3.6.2021 Ruokolahti Whooper swan Highly pathogenic H5N1 -  
20 3.6.2021 Kitee Barnacle goose Highly pathogenic H5N1 -  
21 3.6.2021 Parikkala Barnacle goose Highly pathogenic H5N1 -  
22 3.6.2021 Parikkala Barnacle goose Highly pathogenic H5N1 -  
23 4.6.2021 Tohmajärvi Barnacle goose Highly pathogenic H5N1 -  
24 9.6.2021 Iitti Barnacle goose Highly pathogenic H5N1    
25 14.6.2021 Lappeenranta Barnacle goose Highly pathogenic H5N1    
26 14.6.2021 Imatra Barnacle goose Highly pathogenic H5N1    
27 15.6.2021 Kirkkonummi White-tailed eagle Highly pathogenic H5N1    
28 16.6.2021 Tohmajärvi Barnacle goose Highly pathogenic H5N1    
29 17.6.2021 Närpiö White-tailed eagle Highly pathogenic H5N1    
30 18.6.2021 Rääkkylä Barnacle goose Highly pathogenic H5N1    
31 7.7.2021 Kirkkonummi White-tailed eagle Highly pathogenic H5N1    
32 26.7.2021 Kimitoön White-tailed eagle Highly pathogenic H5N8 -  
33 26.7.2021 Kimitoön European herring gull Highly pathogenic H5N8 -  
34 28.7.2021 Puumala Barnacle goose Highly pathogenic H5N1 -  
35 2.8.2021 Posio Golden eagle Highly pathogenic H5N1 -  
36 5.8.2021 Kirkkonummi European herring gull Highly pathogenic H5N1 -  
37 11.8.2021 Turku European herring gull Highly pathogenic H5N1 -  
38 11.8.2021 Helsinki Eurasian eagle-owl Highly pathogenic H5N8 -  
39 17.8.2021 Espoo Mute swan Highly pathogenic H5N1 -  
40 17.8.2021 Helsinki Northern goshawk Highly pathogenic H5N1 -  
41 18.8.2021 Helsinki Mute swan Highly pathogenic H5N1 -  
42 18.8.2021 Pargas Whooper swan Highly pathogenic H5N8 -  
43 23.8.2021 Turku European herring gull Highly pathogenic H5N8 -  
44 23.8.2021 Helsinki Whooper swan Highly pathogenic H5N1 -  
45 23.8.2021 Helsinki Common merganser Highly pathogenic H5N1 -  
46 24.8.2021 Helsinki Common gull Highly pathogenic H5N1 -  
47 24.8.2021 Espoo Common gull Highly pathogenic H5N8 -  
48 31.8.2021 Helsinki Whooper swan Highly pathogenic H5N1 -  
49 31.8.2021 Kirkkonummi Mute swan Highly pathogenic H5N1 -  
50 31.8.2021 Helsinki Eurasian eagle-owl Highly pathogenic H5N1 -  
51 8.9.2021 Helsinki European herring gull Highly pathogenic H5N1 -  
52 16.9.2021 Helsinki Barnacle goose Highly pathogenic H5N1 -  
53 16.9.2021 Helsinki Barnacle goose Highly pathogenic H5N1 -  
54 25.9.2021 Salo Wild pheasant Highly pathogenic H5N1 25.9.2021 10.11.2021
55 28.9.2021 Janakkala Wild pheasant Highly pathogenic H5N1 29.9.2021  
56 29.9.2021 Pargas Grey heron Highly pathogenic H5N8 -  
57 1.10.2021 Orimattila Wild pheasant Highly pathogenic H5N1 -  
58 1.10.2021 Janakkala Wild pheasant Highly pathogenic H5N1 4.10.2021  
59 15.10.2021 Janakkala Wild pheasant Highly pathogenic H5N1 15.10.2021  
60 22.10.2021 Helsinki Barnacle goose Highly pathogenic H5N1 -  
61 25.10.2021 Siuntio White-tailed eagle Highly pathogenic H5N1 -  
62 10.11.2021 Janakkala Ural owl Highly pathogenic H5N1    
63 10.11.2021 Janakkala Northern goshawk Highly pathogenic H5N1    
64 11.11.2021 Janakkala Northern goshawk Highly pathogenic H5N1    
65 19.11.2021 Janakkala Mallard Highly pathogenic H5N8    

 

Surveillance of avian influenza

An annual avian influenza surveillance programme is carried out in Finland. Every year a couple of hundred poultry farms and about 100-150 wild birds are examined for avian influenza virus. In addition, all suspected cases of bird flu are examined for possible infection.

The results from previous years’ surveillance are available in the Animal diseases in Finland publications.

Avian influenza in Finland in 2018

The first avian influenza case of 2018 was found in March when a white-tailed eagle that was caught in good physical condition, was found to have the highly pathogenic H5N6 type avian influenza, which is linked with high mortality among birds. 

Avian influenza in Finland in 2016-2017

In Finland highly pathogenic avian influenza was first diagnosed at the end of November 2016 when a highly pathogenic H5N8 type avian influenza was found in tufted ducks found dead in the Åland Islands. Since then, highly pathogenic avian influenza was found in wild birds in other parts of Åland and in Southwest Finland. The highly pathogenic H5N8 type avian influenza was found in an aviary in Mariehamn. The highly-pathogenic version causes high mortality in most species of poultry.

When a case of highly-pathogenic avian influenza is confirmed, the Finnish Food Authority can set up a restriction zone around the area where the disease appeared.

 

Page last updated 11/23/2021