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Evidence for common ancestry among viruses isolated from wild birds in Beringia and highly pathogenic intercontinental reassortant H5N1 and H5N2 influenza A viruses
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文摘

We sampled wild birds in Alaska prior to H5 HPAI detection in North America, 2014.

We identified viral gene segments sharing recent ancestry with H5N2 and H5N1 HPAI.

Results are consistent with trans-Beringian introduction of HPAI into North America.

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