期刊
INFECTION GENETICS AND EVOLUTION
卷 13, 期 -, 页码 331-338出版社
ELSEVIER
DOI: 10.1016/j.meegid.2012.09.021
关键词
Influenza A virus; H1N1; Swine; Genetic analysis
资金
- Chinese National Key Basic Research (973) program [2011CB505001]
- Chinese National Science Fund for Distinguished Young Scholars [30825032]
- International Collaboration program [1112]
- Harbin Municipal ST Plan [2009AA6BN078]
The pandemic A/H1N1 influenza viruses emerged in both Mexico and the United States in March 2009, and were transmitted efficiently in the human population. They were transmitted occasionally from humans to other mammals including pigs, dogs and cats. In this study, we report the isolation and genetic analysis of novel viruses in pigs in China. These viruses were related phylogenetically to the pandemic 2009 H1N1 influenza viruses isolated from humans and pigs, which indicates that the pandemic virus is currently circulating in swine populations, and this hypothesis was further supported by serological surveillance of pig sera collected within the same period. Furthermore, we isolated another two H1N1 viruses belonging to the lineages of classical swine H1N1 virus and avian-like swine H1N1 virus, respectively. Multiple genetic lineages of H1N1 viruses are co-circulating in the swine population, which highlights the importance of intensive surveillance for swine influenza in China. (C) 2012 Elsevier B.V. All rights reserved.
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