欧盟发布2025年3月-6月禽流感概述

 

　　2025年3月8日至2025年6月6日，24个欧洲国家报告了高致病性禽流感（HPAI）疫情的暴发。自上次报告以来，截至2025年6月6日，孟加拉国报告了2例甲型H5N1病毒感染的人类病例，柬埔寨报告了2例甲型H5N1病毒感染的人类病例，印度、墨西哥和越南分别报告了1例甲型H5N1病毒感染的人类病例，中国报告了1例甲型H10N3、1例甲型H5N1和11例甲型H9N2病毒感染的人类病例。在欧盟/欧洲经济区，一般人群的感染风险被评估为低，职业暴露人群的感染风险为低至中度。部分原文报道如下：

 

　　Between 8 March and 6 June 2025, 365 highly pathogenic avian influenza (HPAI) A(H5) virus detections were reported in domestic (167) and wild (198) birds across 24 countries in Europe. HPAI A(H5N1) virus detections were predominant and mainly located in western, central and south-eastern Europe. Most detections in wild birds concerned waterfowl, particularly swans and geese, but also gulls were involved. Poultry establishments, particularly domestic ducks and chickens, continued to be affected in large numbers in Hungary and Poland. In mammals, HPAI A(H5N1) and A(H5N5) virus detections were reported in a domestic cat, red foxes, Eurasian otters and grey seals. For the first time ever, HPAI A(H5N1) viral infection was detected in a sheep in the United Kingdom. Outside Europe, the United States of America (USA) continued to report A(H5N1) virus detections in dairy cattle, while the virus was found for the first time in a gray fox (USA), a leopard cat (South Korea) and a long-tailed weasel (USA). Between 8 March and 6 June 2025, 20 cases of avian influenza virus infection in humans, including four deaths, were reported in six countries: Bangladesh (two A(H5N1) cases), Cambodia (two A(H5N1) cases), China (one A(H10N3), one A(H5N1), and 11 A(H9N2) cases), India (one A(H5N1) case), Mexico (one A(H5N1) case), and Viet Nam (one A(H5N1) case). Most of the A(H5N1) human cases (n = 5/8) reported exposure to poultry prior to detection or onset of illness. Given the widespread circulation of avian influenza viruses in animal populations, human infections remain rare. No human-to-human transmission has been documented during the reporting period. The risk of infection with the avian A(H5) clade 2.3.4.4b influenza viruses currently circulating in Europe remains low for the general public in the European Union/European Economic Area (EU/EEA) and low-to-moderate for those occupationally or otherwise exposed to infected animals or contaminated environments.

 

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