Avian influenza overview December 2024–March 2025 DOI Creative Commons

Leonidas Alexakis,

Hubert Buczkowski, Mariette Ducatez

et al.

EFSA Journal, Journal Year: 2025, Volume and Issue: 23(4)

Published: April 1, 2025

Abstract Between 7 December 2024 and March 2025, 743 highly pathogenic avian influenza (HPAI) A(H5) virus detections were reported in domestic (239) wild (504) birds across 31 countries Europe. HPAI A(H5N1) predominant mainly located central, western south‐eastern Most concerned waterfowl, particularly mute swans, barnacle geese greylag geese. Limited secondary spread was observed among the poultry outbreaks, outdoor access remained an important risk factor at interface between birds. A(H5N5) outbreaks occurred only increasingly waterfowl. For first time since spring 2024, several cats carnivores In United States of America (USA), number dairy cattle farms reportedly affected rose to almost 1000 17 States, a different genotype (D1.1) this species. 12 22 new cases infection humans USA (12 cases), Cambodia (two Kingdom (one case), China (six A(H9N2) one A(H10N3) case). human (93%, n = 14/15) had exposure or prior detection onset illness. Considering widespread circulation viruses animal populations, infections with remain infrequent. No evidence human‐to‐human transmission has been documented during reporting period. The clade 2.3.4.4b currently circulating Europe remains low for general public European Union/European Economic Area (EU/EEA). low‐to‐moderate those occupationally otherwise exposed infected animals contaminated environments.

Language: Английский

Avian influenza overview December 2024–March 2025 DOI Creative Commons

Leonidas Alexakis,

Hubert Buczkowski, Mariette Ducatez

et al.

EFSA Journal, Journal Year: 2025, Volume and Issue: 23(4)

Published: April 1, 2025

Abstract Between 7 December 2024 and March 2025, 743 highly pathogenic avian influenza (HPAI) A(H5) virus detections were reported in domestic (239) wild (504) birds across 31 countries Europe. HPAI A(H5N1) predominant mainly located central, western south‐eastern Most concerned waterfowl, particularly mute swans, barnacle geese greylag geese. Limited secondary spread was observed among the poultry outbreaks, outdoor access remained an important risk factor at interface between birds. A(H5N5) outbreaks occurred only increasingly waterfowl. For first time since spring 2024, several cats carnivores In United States of America (USA), number dairy cattle farms reportedly affected rose to almost 1000 17 States, a different genotype (D1.1) this species. 12 22 new cases infection humans USA (12 cases), Cambodia (two Kingdom (one case), China (six A(H9N2) one A(H10N3) case). human (93%, n = 14/15) had exposure or prior detection onset illness. Considering widespread circulation viruses animal populations, infections with remain infrequent. No evidence human‐to‐human transmission has been documented during reporting period. The clade 2.3.4.4b currently circulating Europe remains low for general public European Union/European Economic Area (EU/EEA). low‐to‐moderate those occupationally otherwise exposed infected animals contaminated environments.

Language: Английский

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