Influenza A Virus Infections in Land Birds, People’s Republic of China
2008

Influenza A Virus Infections in Land Birds in China

Sample size: 939 publication Evidence: moderate

Author Information

Author(s): Townsend A. Peterson, Sarah E. Bush, Erica Spackman, David E. Swayne, Hon S. Ip

Primary Institution: University of Kansas

Hypothesis

Are land birds also reservoirs for influenza A viruses?

Conclusion

The study shows that land birds can harbor influenza A viruses, challenging the assumption that only waterbirds are significant reservoirs.

Supporting Evidence

  • 24 out of 939 samples tested positive for influenza A viruses, indicating a prevalence of 2.3%.
  • 11 out of 231 samples from migratory species were positive, showing higher infection rates compared to nonmigratory species.

Takeaway

This study found that land birds in China can get sick from the flu, just like waterbirds, which means we need to check on all types of birds to keep track of the virus.

Methodology

Birds were sampled and tested for influenza A virus infection using real-time reverse transcription–PCR.

Limitations

The study could not fully characterize the influenza viruses to specific strains due to preservation status of samples.

Participant Demographics

The study included 939 samples from 153 species of land birds in southern China.

Statistical Information

P-Value

0.0013

Statistical Significance

p = 0.0013

Digital Object Identifier (DOI)

10.3201/eid1410.080169

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