Identifying changes in selective constraints: host shifts in influenza. (33/90)

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Zoonotic risk for influenza A (H5N1) infection in wild swan feathers. (34/90)

We examined whooper swans naturally infected with avian influenza virus (H5N1) to evaluate the possible zoonotic risk of swan feathers. Viruses were isolated from feather calami. Immunohistochemical testing revealed that virus antigens were present in the feather epidermis and feather follicle wall epidermis of some feathers. RT-PCR and genetic sequencing using paraffin sections of swan feathers confirmed the presence of avian influenza virus (H5N1) in the feather tissue. These results indicate that the feathers could have the risk for zoonotic infection from infected wild swans.  (+info)

Influenza A viruses in wild birds of the Pacific flyway, 2005-2008. (35/90)

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Emerging and reemerging influenza virus infections. (36/90)

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Intercontinental reassortment and genomic variation of low pathogenic avian influenza viruses isolated from northern pintails (Anas acuta) in Alaska: examining the evidence through space and time. (37/90)

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Variability in pathobiology of South Korean H5N1 high-pathogenicity avian influenza virus infection for 5 species of migratory waterfowl. (38/90)

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Spatial and temporal association of outbreaks of H5N1 influenza virus infection in wild birds with the 0 degrees C isotherm. (39/90)

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Evaluation of effectiveness and efficiency of wild bird surveillance for avian influenza. (40/90)

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