Infectious haematopoietic necrosis (IHN) was detected second time in Åland in June 2022. The infection was found in rainbow trout at a RAS establishment in Eckerö. The virus was identical with virus that caused the epidemic in Åland Islands in 2021 (IHN in Finland 2021) and virus that occurs in Danmark. The source of the infection in Eckerö is, however, not known. The infections that occurred in Åland Islands in summer and autumn 2021 were located far away from this infection site and fish or contagious materials had not been moved between these establishments. All the fish in the infected establishment in Eckerö had been imported from other countries.
The Finnish Food Authority set up a restricted zone around the infected establishment. All the fish in the infected establishment were slaughtered or culled and the establishment was cleaned and disinfected. A two-year surveillance program was carried out to restore the IHN-free status. The compartment was declared free on September 4th 2025 and all the restrictions were cancelled.