التفاصيل البيبلوغرافية
| العنوان: |
Field and laboratory investigation of highly pathogenic avian influenza H5N6 and H5N8 in Quang Ninh province, Vietnam, 2020 to 2021. |
| المؤلفون: |
Trong Duc Tran, Suwicha Kasemsuwan, Manakorn Sukmak, Waraphon Phimpraphai, Tippawon Prarakamawongsa, Long Thanh Pham, Tuyet Bach Hoang, Phuong Thi Nguyen, Thang Minh Nguyen, Minh Van Truong, Tuan Pham Dao, Pawin Padungtod |
| المصدر: |
Journal of Veterinary Science; Mar2024, Vol. 25 Issue 2, p1-15, 15p |
| مصطلحات موضوعية: |
POULTRY farms, AVIAN influenza, REVERSE transcriptase polymerase chain reaction, COMMUNICABLE diseases |
| مصطلحات جغرافية: |
VIETNAM |
| مستخلص: |
Background: Avian influenza (AI) is a contagious disease that causes illness and death in poultry and humans. High pathogenicity AI (HPAI) H5N6 outbreaks commonly occur in Quang Ninh province bordering China. In June 2021, the first HPAI H5N8 outbreak occurred at a Quang Ninh chicken farm. Objectives: This study examined the risk factors associated with HPAI H5N6 and H5N8 outbreaks in Quang Ninh. Methods: A retrospective case-control study was conducted in Quang Ninh from Nov 2021 to Jan 2022. The cases were households with susceptible poultry with two or more clinical signs and tested positive by real-time reverse transcription polymerase chain reaction. The controls were households in the same village as the cases but did not show clinical symptoms of the disease. Logistic regression models were constructed to assess the risk factors associated with HPAI outbreaks at the household level. Results: There were 38 cases with H5N6 clade 2.3.4.4h viruses (n = 35) and H5N8 clade 2.3.4.4b viruses (n = 3). Compared to the 112 controls, raising poultry in uncovered or partially covered ponds (odds ratio [OR], 7.52; 95% confidence interval [CI], 1.44--39.27), poultry traders visiting the farm (OR, 8.66; 95% CI, 2.7--27.69), farms with 50--2,000 birds (OR, 3.00; 95% CI, 1.06--8-51), and farms with ≥ 2,000 birds (OR, 11.35; 95% CI, 3.07--41.94) were significantly associated with HPAI outbreaks. Conclusions: Combining biosecurity measures, such as restricting visitor entry and vaccination in farms with more than 50 birds, can enhance the control and prevention of HPAI in Quang Ninh and its spread across borders. [ABSTRACT FROM AUTHOR] |
|
Copyright of Journal of Veterinary Science is the property of Korean Society of Veterinary Science and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) |
| قاعدة البيانات: |
Supplemental Index |
Full Text Finder