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St. Helena - #Influenza A #H5N1 viruses of high pathogenicity (Inf. with) (non-poultry including wild birds) (2017-) - Immediate notification

By G.M.
On 12th September 2024, a dead Tristan (Brown) Skua (Stercorarius antarcticus hamiltoni) was found at the Gough Island helipad. The following day, a live skua was observed showing suspicious signs of HPAI , including head drooping, lethargy and weakness , and was later reported dead. Between the 12th and 15th September, a total of four skuas were found dead from suspicious causes. Three carcasses were swabbed on the 20th of September and all were confirmed POSITIVE for H5N1 HPAIV by the Animal and Plant Health Agency (Weybridge laboratory) in the UK on the 24th of October 2024. On the day of sampling, the fourth carcass could not be found and was probably taken away by a scavenging skua. Since then, no further signs of HPAI among skuas or in other seabirds breeding on Gough Island, have been observed. Source: WOAH,  https://wahis.woah.org/#/in-review/6354 ____
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#USA - High pathogenicity avian #influenza #H7N9 viruses (#poultry) (Inf. with) - Immediate notification

By G.M.
Highly pathogenic avian influenza (HPAI) H7N9 of North American wild bird lineage was detected in a commercial broiler breeder chicken flock in Mississippi . Depopulation of the affected flock is in progress. The USDA Animal and Plant Health Inspection Service (APHIS), in conjunction with State Animal Health and Wildlife Officials, are conducting a comprehensive epidemiological investigation and enhanced surveillance in response to the detection. A commercial broiler breeder premises {in Mississippi}. Clinical signs included increased mortality. Depopulation was completed 13 Mar 2025. Source: WOAH,  https://wahis.woah.org/#/in-review/6340 ____
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#Spain - #Influenza A #H5N1 viruses of high pathogenicity (Inf. with) (non-poultry including wild birds) (2017-) - Immediate notification

By G.M.
 This event will collect the detections made by sampling carried out in 2025. Peregrine falcon , adult male, transmitted to a Centre for the protection of endangered species on 05/02/2025 with nervous symptoms, that died on 06/02/2025. The necropsy was performed at the Wildlife Center for Analysis and Diagnosis. Source: WOAH,  https://wahis.woah.org/#/in-review/6316 ____
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#Sweden - #Influenza A #H5N1 viruses of high pathogenicity (Inf. with) (non-poultry including wild birds) (2017-) - Immediate notification

By G.M.
A whopper swan was found dead . It was sent to the Swedish Veterinary Agency (formerly National Veterinary Institute) for laboratory analysis as part of the national surveillance program for avian influenza. Source: WOAH,  https://wahis.woah.org/#/in-review/6299 ____
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#Sweden - High pathogenicity avian #influenza #H5N1 viruses (#poultry) (Inf. with) - Immediate notification

By G.M.
This is a farm with pheasants for game restocking . The birds are being euthanized 27 February  A protection zone (3km) and a surveillance zone (10 km) have been put in place around the infected farm and all other restrictions and necessary measures according to Regulation (EU) 2016/429 and (EU) 2020/687. Source: WOAH,  https://wahis.woah.org/#/in-review/6297 ____
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