Wild Bird Migration and H5N1 Spread in China
Author Information
Author(s): Diann J. Prosser, Peng Cui, John Y. Takekawa, Mingjie Tang, Yuansheng Hou, Bridget M. Collins, Baoping Yan, Nichola J. Hill, Tianxian Li, Yongdong Li, Fumin Lei, Shan Guo, Zhi Xing, Yubang He, Yuanchun Zhou, David C. Douglas, William M. Perry, Scott H. Newman
Primary Institution: Patuxent Wildlife Research Center, United States Geological Survey
Hypothesis
If wild birds play a significant role in the spread of H5N1 to Qinghai Lake, certain conditions would be observed.
Conclusion
The study suggests that wild birds, particularly bar-headed geese, play a role in the spread of H5N1 in the Qinghai-Tibet Plateau region.
Supporting Evidence
- 93% of the marked geese overwintered in the Lhasa Valley of Tibet.
- Sixteen outbreaks of H5N1 were confirmed on the Qinghai-Tibet Plateau from 2003 to 2009.
- Spatial and temporal concordance between goose movements and H5N1 outbreak locations indicated opportunities for virus spillover.
Takeaway
Bar-headed geese migrate between Qinghai Lake and Tibet, and they might help spread a bird flu virus called H5N1.
Methodology
The study tracked the movements of 29 bar-headed geese using GPS satellite transmitters and analyzed their migration patterns in relation to H5N1 outbreaks.
Limitations
The strength of the evidence would be improved with additional sequences from both poultry and wild birds.
Participant Demographics
The study involved 29 bar-headed geese, including 25 adults and 4 juveniles.
Statistical Information
P-Value
0.032
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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