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| Content Provider | Springer Nature : BioMed Central |
|---|---|
| Author | Teng, Qiaoyang Shen, Weixia Liu, Qinfang Rong, Guangyu Chen, Lin Li, Xuesong Chen, Hongjun Yang, Jianmei Li, Zejun |
| Abstract | Background Wild ducks play an important role in the evolution of avian influenza viruses (AIVs). Domestic ducks in China are known to carry and spread H9N2 AIVs that are thought to have contributed internal genes for the recent outbreak of zoonotic H7N9 virus. In order to protect animal and public health, an effective vaccine is urgently needed to block and prevent the spread of H9N2 virus in ducks. We developed an inactivated H9N2 vaccine (with adjuvant Montanide ISA 70VG) based on an endemic H9N2 AIV and evaluated this vaccine in ducks. Findings The results showed that the inactivated H9N2 vaccine was able to induce a strong and fast humoral immune response in vaccinated ducks. The hemagglutination inhibition titer in the sera increased fast, and reached its peak of 12.3 log2 at 5 weeks post-vaccination in immunized birds and remained at a high level for at least 37 weeks post-vaccination. Moreover, viral shedding was completely blocked in vaccinated ducks after challenge with a homologous H9N2 AIV at both 3 and 37 weeks post-vaccination. Conclusions The results of this study indicate that the inactivated H9N2 vaccine induces high and prolonged immune response in vaccinated ducks and are efficacious in protecting ducks from H9N2 infection. |
| Related Links | https://virologyj.biomedcentral.com/counter/pdf/10.1186/s12985-015-0372-7.pdf |
| Ending Page | 4 |
| Page Count | 4 |
| Starting Page | 1 |
| File Format | HTM / HTML |
| DOI | 10.1186/s12985-015-0372-7 |
| Journal | Virology Journal |
| Issue Number | 1 |
| Volume Number | 12 |
| Language | English |
| Publisher | BioMed Central |
| Publisher Date | 2015-09-17 |
| Access Restriction | Open |
| Subject Keyword | Virology H9N2 Virus Hemagglutination Inhibition H9N2 Avian Influenza Virus Cloacal Swab Domestic Duck |
| Content Type | Text |
| Resource Type | Article |
| Subject | Virology Infectious Diseases |
| Journal Impact Factor | 4/2023 |
| 5-Year Journal Impact Factor | 3.8/2023 |
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