Duck Migration and Past Influenza A (H5N1) Outbreak Areas
2008

Duck Migration and Influenza A (H5N1) Outbreak Areas

Sample size: 7 publication Evidence: moderate

Author Information

Author(s): Gaidet Nicolas, Newman Scott H., Hagemeijer Ward, Dodman Tim, Cappelle Julien, Hammoumi Saliha, De Simone Lorenzo, Takekawa John Y.

Primary Institution: Centre de Coopération Internationale en Recherche Agronomique pour le Développement

Hypothesis

What is the role of migratory ducks in the spread of HPAI (H5N1) outbreaks?

Conclusion

The study suggests that while migratory ducks may use wetlands near past HPAI (H5N1) outbreak areas, their migration patterns do not provide evidence of their role in spreading the virus.

Supporting Evidence

  • The garganey is the most numerous duck migrating between Eurasia and Africa.
  • Satellite telemetry showed a spatial correlation between migration paths and past HPAI outbreak areas.
  • All sampled ducks tested negative for avian influenza virus.

Takeaway

Ducks travel long distances and sometimes stop near places where bird flu outbreaks happened, but this doesn't mean they spread the virus.

Methodology

Seven garganeys were captured and fitted with satellite transmitters to track their migration paths.

Limitations

The study only tracked a small number of ducks and did not find direct evidence of virus transmission.

Participant Demographics

The study focused on the garganey duck species.

Digital Object Identifier (DOI)

10.3201/eid1407.071477

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