Bird flu cases detected among wild birds in Norway as authorities warn of potential spread

After a summer and breeding season without significant outbreaks of bird flu, several cases of highly pathogenic avian influenza (HPAI) have now been detected among wild birds in coastal areas of Norway and Europe this fall, according to the Norwegian Veterinary Institute. Most detections have been among seabirds, but cases have also been reported for gulls and white-tailed eagles in Northern Norway. Authorities warn that infected birds could spread the virus to southern regions as gulls from the northernmost counties may migrate south in the coming weeks and months. Recently, HPAI was confirmed in a dead wild bird in Senja municipality.

The Veterinary Institute anticipates more outbreaks among poultry and kept birds in Europe due to the rising infection rates among wild birds. Veterinarian Silje Granstad emphasizes the importance of enhanced biosecurity measures for all poultry keepers, whether commercial or hobbyist, during the autumn and winter months. Over the past four years, Norway has witnessed outbreaks of HPAI in five commercial poultry flocks, two hobby poultry holdings, and two bird parks.

The most severe strain of bird flu was reported in Svalbard last August, and 2023 has seen the largest outbreak of bird flu among wild birds that Norway has ever experienced.

Bird flu is an infectious viral disease primarily affecting birds, especially waterfowl, caused by various subtypes of the influenza A virus. It can lead to high mortality rates in bird populations, though human infections are extremely rare.