ETIDIOH - NEW

  A poultry farm in Extremadura Region. Source: WOAH,  https://wahis.woah.org/#/in-review/6639 ____

Abstract Since 2021, highly pathogenic avian influenza (HPAI) A(H5N1) clade 2.3.4.4b virus has affected wild bird populations globally . Griffon vultures (Gyps fulvus), a species hitherto considered unexposed, experienced an HPAI H5N1 outbreak in 2022 in southern Europe , leading to moderate mortality and reduced breeding success . The integration of virological, serologic, phylogenetic, and ecologic data revealed a short yet intense viral circulation and a probable common source of infection . The dissemination across Spain and France was likely caused by frequent interpopulation movements of birds. This integrated overview of the 2022 HPAI outbreak in vultures provides novel insights into the role of large-scale movements of wild birds in the spread of such disease. Understanding the epidemiologic dynamics of HPAI H5N1 in these scavenger species is crucial because the birds play vital roles in ecosystem functioning. Their susceptibility to this virus highlights potential broader ecol...

Abstract A reemergence of parvovirus B19 infections in Spain in early 2024 prompted a 10-year review of the virus at a tertiary center. We identified 8 case-patients with neurologic manifestations who had parvovirus B19 in cerebrospinal fluid . Early recognition and management of parvovirus B19–associated neurologic conditions will help yield favorable outcomes. Source: US Centers for Disease Control and Prevention,  https://wwwnc.cdc.gov/eid/article/31/8/25-0278_article ____

Highlights •  In a landscape of a very narrow arsenal of influenza antivirals, resistance mutations are a significant threat. •  Resistance mutations were present in 0.5-5% in A and B influenza viruses during the last 15 years. •  However, S247N resistance mutation in the NA gene sharply increased during 2023-2024 season. •  While this mutation does not confer strong resistance by itself, their fixation could increase the risk of resistance in the future if other resistance mutations appears or get fixed together with it. Abstract The therapeutic arsenal against influenza is extremely limited and resistance often arises due to the emergence of mutations , especially in the neuraminidase (NA) gene. This study aimed to evaluate the evolution of NA mutations over 15 years in Spain . To do so, we used the GISAID database from which we downloaded a total of 11,125 influenza A(H1N1)pdm09, A(H3N2), B/Victoria and B/Yamagata NA virus sequences , and analyzed the resistance 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 ____