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Latest news about outbreaks of the fish disease IHN

Find information about infectious hematopoietic necrosis (IHN) in Denmark.

​​​​​​​​​​​See all our pages about IHN - in Danish


Aktuel situation for fiskesygdommen IHN

FAQ - særligt for dambrug og lystfiskersøer

Læs mere Om IHN​​

Information about fish(feed) produced in Denmark

It is highly unlikely that IHN is spread via (fish) feed produced in Denmark. 

Read about the requirements for feed (pdf).​


Latest news about outbreaks of the fish disease IHN


Fish farm in Horsens is infected with fish disease on 9 June 2022

Trout in a fish farm in Horsens Municipality are infected with the fish disease infectious haematopoietic necrosis (IHN). This is the tenth outbreak since Denmark abandoned the status as free from IHN in December 2021.​


Fish farm in Ringkøbing is infected with fish disease on 17 May 2022

Trout in a fish farm in Herning Municipality are infected with the fish disease infectious haematopoietic necrosis (IHN). This is the ninth outbreak since Denmark abandoned the status as free from IHN in December 2021.


Fish farm in Kalundborg is infected with fish disease on 17 May 2022

Trout in a fish farm in Kalundborg Municipality are infected with the fish disease infectious haematopoietic necrosis (IHN). This is the eight outbreak since Denmark abandoned the status as free from IHN in December 2021.​


Fish farm in Ringkøbing is infected with fish disease on 16 May 2022

Trout in a fish farm in Ringkøbing Municipality are infected with the fish disease infectious haematopoietic necrosis (IHN). This is the seventh outbreak since Denmark abandoned the status as free from IHN in December 2021.


Fish farm in Kalundborg is infected with fish disease on 12 May 2022

Trout in a fish farm in Kalundborg Municipality are infected with the fish disease infectious haematopoietic necrosis (IHN). This is the sixth outbreak since Denmark abandoned the status as free from IHN in December 2021.​


Fish farm in Vejen is infected with fish disease on 9 May 2022

Trout in a fish farm in Vejen Municipality are infected with the fish disease infectious haematopoietic necrosis (IHN). This is the fifth outbreak since Denmark abandoned the status as free from IHN in December 2021.


Fish farms in Rebild is infected with fish disease on 29 April 2022

Trout in two fish farms in Rebild Municipality are infected with the fish disease infectious haematopoietic necrosis (IHN). This is the third and fourth outbreak since Denmark abandoned the status as free from IHN in December 2021.​​


Fish farm in Hobro is infected with fish disease on 27 April 2022

Trout in a fish farm near Stenild in Hobro Municipality are infected with the fish disease infectious haematopoietic necrosis (IHN). This is the second outbreak since Denmark abandoned the status as free from IHN in December 2021. ​


Fish farm in Hobro is infected with fish disease on 20 April 2022

Trout in a fish farm near Hannerup in Hobro Municipality are infected with the fish disease infectious haematopoietic necrosis (IHN). This is the first outbreak since Denmark abandoned the status as free from IHN in December 2021. ​


Denmark has now status as a ​not-IHN-free country (10 december 2021)

Denmark has of 10 December 2021 abandoned the status as free from IHN. Therefore, the main part of the Danish aquaculture establishments are no longer considered IHN-free. From these establishments, Denmark does not certify exported products as IHN-free.

​​

​Suspension of IHN- free status prolonged (1 December 2021)

On 29 November 2021, the Danish Veterinary and Food Administration prolonged the suspension of Denmark's status as free from IHN until further notice. The suspension is a transitional measure that the Danish Veterinary and Food Administration deems necessary to ensure safe trade of fish and fish products from establishments in Denmark. ​​


Surveillance zones (19 November 2021)

Two of the outbreaks (Hedensted and Skanderborg municipalities) have now been resolved and the restriction zones have been replaced by surveillance zones. These will be in force for at least two years with increased official control and testing of the establishments in the surveillance zones. ​

Suspension of IHN-​free status until ​​1 December 2021​ (1 Nove​​mber 2021)

On 29 October 2021, the Danish Veterinary and Food Administration suspended Denmark's status as free from IHN until 1 December 2021. The suspension is a transitional measure that the Danish Veterinary and Food Administration deems necessary until the disease has been contained.​​​​


Suspension of IHN-free status until ​​1 November 2021​ (13 September 2021)

On 13 September 2021, the Danish Veterinary and Food Administration suspended Denmark's status as free from IHN until 1 November 2021. The suspension is a transitional measure that the Danish Veterinary and Food Administration deems necessary until the disease has been contained.​


Fish farm in Varde is infected with fish disease on 7 September 2021

Trout in a fish farm in Tofterup in Varde Municipality are infected with the fish disease infectious haematopoietic necrosis (IHN). This is the 11th outbreak of the disease this year, after an infection was found on 18 May in a fish farm with trout in Stouby in Hedensted municipality.



Fish farm in Kolding is infected with fish disease on 12 August 2021

Trout in a fish farm in Ejstrup in Kolding Municipality are infected with the fish disease infectious haematopoietic necrosis (IHN). On 12 August, the Danish Veterinary and Food Administration declared an outbreak of the disease in the fish farm. The fish farm has approx. 19 tonnes of salmonids. This is the tenth outbreak of the disease this year, after an infection was found on 18 May in a fish farm with trout in Stouby in Hedensted municipality. 

Map of infected holding at Ejstrup, Kolding Municipality (click picture to enlarge)


Suspension of IHN-free status extended to 16 July 2021 (updated 24 June 2021)

On 2 June 2021, the Danish Veterinary and Food Administration suspended Denmark's status as free from IHN until 23 June 2021. The suspension of IHN-free status has been extended to 16 July 2021. The suspension is a transitional measure that the Danish Veterinary and Food Administration deems necessary until the disease is contained.


Put and take lake at Hørning in Central Jutland is infected with fish disease on 3 June 2021

Trout in a put and take lake at Hørning in Skanderborg Municipality are infected with the fish disease infectious haematopoietic necrosis (IHN). On 3 June, the Danish Veterinary and Food Administration declared an outbreak of the disease in the fish farm. The Put and take lake has approx. 300-500 kg trout. This is the seventh outbreak of the disease within a short time, after an infection was found on 18 May in a fish farm with trout in Stouby in Hedensted municipality.


Map of infected holding at Hørning, Skanderborg (click picture to enlarge)

 

Fish farm in Himmerland is infected with fish disease on 3 June 2021

Trout in a fish farm at Støvring in Rebild Municipality are infected with the fish disease infectious haematopoietic necrosis (IHN). On 3 June, the Danish Veterinary and Food Administration declared an outbreak of the disease in the fish farm. The fish farm has approx. 72 tonnes of trout. This is the sixth outbreak of the disease in a short time, after an infection was found on 18 May in a fish farm with trout in Stouby in Hedensted municipality.


Map of infected holding at Støvring, Rebild (click picture to enlarge)

 

Fish farm in South Jutland infected with fish disease on 3 June 2021

Trout in a third fish farm in the drainage area for Sneum Å located by Brorup in Vejen Municipality are infected with the fish disease infectious hematopoietic necrosis (IHN). On 3 June, the Danish Veterinary and Food Administration declared an outbreak of the disease in the fish farm. The fish farm has approx. 168,000 trout and approx. 25 sturgeon. This is the fifth outbreak of the disease within a short time, after an infection was found on 18 May in a fish farm with trout in Stouby in Hedensted municipality.


Suspension of IHN-free status (2 June, 2021)

On 2 June 2021, the Danish Veterinary and Food Administration suspended Denmark's status as being free of IHN. The suspension is a transitional measure that the Danish Veterinary and Food Administration deems necessary until the disease has been contained. IHN-free status is temporarily suspended for a period of three weeks until 23 June, 2021. The suspension will be reevaluated in the days leading up to 23 June.

The Danish Veterinary and Food Administration will in the suspension period therefore not issue health certificates for intra-community trade of live fish and eyed eggs, which requires country or zone freedom from IHN. Denmark will continue to allow intra-community trade to other EU member states, zones or compartments not being free from IHN or not being subject to an eradication programme for IHN.

Export of fish and derived products to countries outside the EU, may still commence, if the products comply with the requirements in the relevant export health certificates.

The Danish Veterinary and Food Administration will seek to continue market access for eyed eggs to countries outside EU, based on either already existing agreements or negation of new health attestations.


Fish farm in South Jutland infected with fish disease on 2 June 2021

Trout in another fish farm in Holsted in Vejen Municipality are infected with the fish disease infectious haematopoietic necrosis (IHN). On 2 June, the Danish Veterinary and Food Administration declared an outbreak of the disease in the fish farm. The fish farm has approx. 90 tonnes of trout. This is the fourth outbreak of the disease within a short time, after an infection was found on 18 May in a fish farm with trout in Stouby in Hedensted Municipality.

Fish farm in South Jutland infected with fish disease on 29 May 2021

Trout in a fish farm in Holsted in Vejen Municipality are infected with the fish disease infectious haematopoietic necrosis (IHN). On 29 May, the Danish Veterinary and Food Administration declared an outbreak of the disease in the fish farm. The fish farm has approx. 150 tonnes of trout. This is the third outbreak of the disease within a short time, after an infection was found on 18 May in a fish farm with trout in Stouby in Hedensted Municipality.


Map of infected holding near Holsted, Vejen (click picture to enlarge)


Fish farm in Southern Jutland infected with fish disease on 25 May 2021

Trout in a fish farm in Bylderup-Bov in Aabenraa Municipality are infected with the fish disease infectious hematopoietic necrosis (IHN). On 25 May, the Danish Veterinary and Food Administration declared an outbreak of the disease in the fish farm. The fish farm has 400,000 rainbow trout. This is the second outbreak of the disease within a short time, after an infection was found last week in a fish farm with trout in Stouby in Hedensted municipality.


Map of infected holding near Bylderup Bov, Aabenraa (click picture to enlarge)


Outbreak of the fish disease IHN in Denmark on 18 May 2021

Trout in a fish farm in South Jutland are affected by the fish disease infectious haematopoietic necrosis (IHN). This is the first time the disease has been diagnosed in Denmark. 

On 18 May, the Danish Veterinary and Food Administration declared an outbreak of the fish disease IHN in Denmark. A fish farm with trout in Stouby northeast of Vejle is infected with the disease, according to samples taken by the Danish Veterinary and Food Administration.


Map of infected holding near Stouby, Hedensted (click picture to enlarge)




Last Modified 13. June 2022