Pathogenic analysis of the pandemic 2009 H1N1 influenza A viruses in ferrets.

Pathogenic analysis of the pandemic 2009 H1N1 influenza A viruses in ferrets.
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雪貂中大流行2009 H1N1流感病毒的致病分析。

DOI:
10.1292/jvms.16-0619
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发表时间:
2017-08-18
期刊:
The Journal of veterinary medical science
影响因子:
--
通讯作者:
Haddock E
Haddock E
中科院分区:
其他
文献类型:
--
作者:
Tsuda Y;Weisend C;Martellaro C;Feldmann F;Haddock E

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2009年H1N1甲型流感病毒在人类中出现并引起了21世纪世纪的第一次流感大流行。墨西哥分离株A/Mexico/4108/2009(H1N1)(Mex 4108)和A/Mexico/InDRE 4478/2009(H1N1)(Mex 4487)来自轻度病例和一组严重病例,在食蟹猴模型中显示出毒力异质性。为了比较致病性差异,我们产生了重组病毒,并比较了它们在雪貂中的毒力。感染重组Mex 4487的雪貂在感染早期表现出略高的病毒复制率和严重的肺炎。相反,重组Mex 4108的病毒脱落比重组Mex 4487的病毒脱落更低,在咽拭子中检测到。因此,Mex 4487在感染个体中诱导严重的肺炎,而Mex 4108可能具有广泛传播的潜力。
The pandemic 2009 H1N1 influenza A virus emerged in humans and caused the first influenza pandemic of the 21st century. Mexican isolates, A/Mexico/4108/2009 (H1N1) (Mex4108) and A/Mexico/InDRE4478/2009 (H1N1) (Mex4487) derived from a mild case and from a cluster of severe cases, showed heterogeneity in virulence in a cynomolgus macaque model. To compare the more pathogenic differences, we generated recombinant viruses and compared their virulence in ferrets. Ferrets infected with recombinant Mex4487 displayed a slightly higher rate of viral replication and severe pneumonia in the early stage of infection. In contrast, prolonged lower virus shedding of recombinant Mex4108 than that of recombinant Mex4487 was detected in throat swabs. Thus, Mex4487 induces severe pneumonia in infected individuals, whereas Mex4108 might have wide-spreading potential with mild disease.
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