According to the Östergötland County Administrative Board, the entire building will be decontaminated.
The Swedish Board of Agriculture has also decided on a declaration of blockade, which means that no animals or animal products may leave the facilities without the Swedish Board of Agriculture's permission.
- This is the biggest outbreak we have had of bird flu in Sweden this season and it is not time to relax yet.
It is extremely important to continue to protect their birds, says Håkan Henrikson, chief veterinarian at the Swedish Board of Agriculture in a press release.
Restriction area of 10 kilometers
The Swedish Board of Agriculture has established restriction areas on the 10-kilometer farm in Linköping, where special restrictions apply.
- We continue to find positive cases among wild birds and the cases of domestic poultry in Östergötland and Västergötland show that infection occurs in areas where we have not yet found cases of wild birds.
The birds' spring migration is underway and this will mean a continued high risk of infection and also risk in areas further north in the country.
Studies we have done of viruses indicate several different introductions from wild birds and spread between houses within large facilities, but we still have no signs of spread between domestic poultry herds, says Maria Nöremark, Acting Deputy State Epizootologist, SVA in a press release.
According to the National Food Administration, there is no risk of eating chicken or eggs, but pet owners across the country are urged to pay attention and contact a veterinarian if poultry has shown increased mortality, reduced feed and water consumption, reduced egg production or reduced general condition.