BO Hong; DONG Li Bo; ZHANG Ye; DONG Jie; ZOU Shu Mei; GAO Rong Bao; WANG Da Yan; SHU Yue Long

doi:10.3967/bes2014.111

H5N1 Avian Influenza Pre-pandemic Vaccine Strains in China

BO Hong, DONG Li Bo, ZHANG Ye, DONG Jie, ZOU Shu Mei, GAO Rong Bao, WANG Da Yan, SHU Yue Long

文章导航 > Biomedical and Environmental Sciences > 2014 > 27(10): 763-769

BO Hong, DONG Li Bo, ZHANG Ye, DONG Jie, ZOU Shu Mei, GAO Rong Bao, WANG Da Yan, SHU Yue Long. H5N1 Avian Influenza Pre-pandemic Vaccine Strains in China[J]. Biomedical and Environmental Sciences, 2014, 27(10): 763-769. doi: 10.3967/bes2014.111

Citation:

BO Hong, DONG Li Bo, ZHANG Ye, DONG Jie, ZOU Shu Mei, GAO Rong Bao, WANG Da Yan, SHU Yue Long. H5N1 Avian Influenza Pre-pandemic Vaccine Strains in China[J]. Biomedical and Environmental Sciences, 2014, 27(10): 763-769. doi: 10.3967/bes2014.111

doi: 10.3967/bes2014.111

基金项目: This study was supported by the National High Technology Research and Development Program of China (863 Program) SQ2009AA02XK1487370

H5N1 Avian Influenza Pre-pandemic Vaccine Strains in China

National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention Key Laboratory for Medical Virology, National Health and Family Planning Commission, Beijing 102206, China

Funds: This study was supported by the National High Technology Research and Development Program of China (863 Program) SQ2009AA02XK1487370

摘要: ObjectiveTo prepare the 4 candidate vaccine strains of H5N1 avian influenza virus isolated in China. MethodsRecombinant viruses were rescued using reverse genetics. Neuraminidase (NA) and hemagglutinin (HA) segments of the A/Xinjiang/1/2006, A/Guangxi/1/2009, A/Hubei/1/2010, and A/Guangdong/1/2011 viruses were amplified by RT-PCR. Multibasic amino acid cleavage site of HA was removed and ligated into the pCIpolI vector for virus rescue. The recombinant viruses were evaluated by trypsin dependent assays. Their embryonate survival and antigenicity were compared with those of the respective wild-type viruses. ResultsThe 4 recombinant viruses showed similar antigenicity compared with wild-type viruses, chickenembryo survival and trypsin-dependent characteristics. ConclusionThe 4 recombinantviruses rescued using reverse genetics meet the criteria for classification of low pathogenic avian influenza strains, thus supporting the use of them for the development of seeds and production of pre-pandemic vaccines.
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Abstract: ObjectiveTo prepare the 4 candidate vaccine strains of H5N1 avian influenza virus isolated in China. MethodsRecombinant viruses were rescued using reverse genetics. Neuraminidase (NA) and hemagglutinin (HA) segments of the A/Xinjiang/1/2006, A/Guangxi/1/2009, A/Hubei/1/2010, and A/Guangdong/1/2011 viruses were amplified by RT-PCR. Multibasic amino acid cleavage site of HA was removed and ligated into the pCIpolI vector for virus rescue. The recombinant viruses were evaluated by trypsin dependent assays. Their embryonate survival and antigenicity were compared with those of the respective wild-type viruses. ResultsThe 4 recombinant viruses showed similar antigenicity compared with wild-type viruses, chickenembryo survival and trypsin-dependent characteristics. ConclusionThe 4 recombinantviruses rescued using reverse genetics meet the criteria for classification of low pathogenic avian influenza strains, thus supporting the use of them for the development of seeds and production of pre-pandemic vaccines.
- Influenza /
- H5N1 /
- Pre-pandemic /
- Vaccine strains

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H5N1 Avian Influenza Pre-pandemic Vaccine Strains in China

doi: 10.3967/bes2014.111

基金项目: This study was supported by the National High Technology Research and Development Program of China (863 Program) SQ2009AA02XK1487370

刊出日期: 2014-10-20

关键词:

Influenza /

H5N1 /

Pre-pandemic /

Vaccine strains

摘要: ObjectiveTo prepare the 4 candidate vaccine strains of H5N1 avian influenza virus isolated in China. MethodsRecombinant viruses were rescued using reverse genetics. Neuraminidase (NA) and hemagglutinin (HA) segments of the A/Xinjiang/1/2006, A/Guangxi/1/2009, A/Hubei/1/2010, and A/Guangdong/1/2011 viruses were amplified by RT-PCR. Multibasic amino acid cleavage site of HA was removed and ligated into the pCIpolI vector for virus rescue. The recombinant viruses were evaluated by trypsin dependent assays. Their embryonate survival and antigenicity were compared with those of the respective wild-type viruses. ResultsThe 4 recombinant viruses showed similar antigenicity compared with wild-type viruses, chickenembryo survival and trypsin-dependent characteristics. ConclusionThe 4 recombinantviruses rescued using reverse genetics meet the criteria for classification of low pathogenic avian influenza strains, thus supporting the use of them for the development of seeds and production of pre-pandemic vaccines.

English Abstract

H5N1 Avian Influenza Pre-pandemic Vaccine Strains in China

National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention Key Laboratory for Medical Virology, National Health and Family Planning Commission, Beijing 102206, China

Funds: This study was supported by the National High Technology Research and Development Program of China (863 Program) SQ2009AA02XK1487370

Publish Date: 2014-10-20

Keywords:

Abstract: ObjectiveTo prepare the 4 candidate vaccine strains of H5N1 avian influenza virus isolated in China. MethodsRecombinant viruses were rescued using reverse genetics. Neuraminidase (NA) and hemagglutinin (HA) segments of the A/Xinjiang/1/2006, A/Guangxi/1/2009, A/Hubei/1/2010, and A/Guangdong/1/2011 viruses were amplified by RT-PCR. Multibasic amino acid cleavage site of HA was removed and ligated into the pCIpolI vector for virus rescue. The recombinant viruses were evaluated by trypsin dependent assays. Their embryonate survival and antigenicity were compared with those of the respective wild-type viruses. ResultsThe 4 recombinant viruses showed similar antigenicity compared with wild-type viruses, chickenembryo survival and trypsin-dependent characteristics. ConclusionThe 4 recombinantviruses rescued using reverse genetics meet the criteria for classification of low pathogenic avian influenza strains, thus supporting the use of them for the development of seeds and production of pre-pandemic vaccines.

Citation: