智利野生鸟类中出现高致病性禽流感 A(H5N1) 病毒 2.3.4.4b 分支。
Highly Pathogenic Avian Influenza A(H5N1) Clade 2.3.4.4b Virus in Wild Birds, Chile.
出版信息
Emerg Infect Dis. 2023 Sep;29(9):1842-1845. doi: 10.3201/eid2909.230067. Epub 2023 Jul 24.
Abstract
In December 2022, highly pathogenic avian influenza A(H5N1) clade 2.3.4.4b virus emerged in Chile. We detected H5N1 virus in 93 samples and obtained 9 whole-genome sequences of strains from wild birds. Phylogenetic analysis suggests multiple viral introductions into South America. Continued surveillance is needed to assess risks to humans and domestic poultry.
摘要
2022 年 12 月，高致病性禽流感 A(H5N1) 病毒 2.3.4.4b 谱系在智利出现。我们在 93 个样本中检测到 H5N1 病毒，并从野生鸟类中获得了 9 株病毒的全基因组序列。系统进化分析表明，该病毒已多次传入南美洲。需要继续监测，以评估其对人类和家禽的风险。
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