نتایج جستجو برای: h7n1
تعداد نتایج: 134 فیلتر نتایج به سال:
The outbreak of highly pathogenic avian influenza (HPAI) infection caused by H5N1 virus in a flock of mute swans wintering in the city of Toruń in western Poland in 2006 was described. Following the confirmation of H5N1 infection in 3 dead swans, 113 apparently healthy swans were placed in an aviary. After 5 d, another dead swan was found in the aviary and was later proved positive for HPAI/H5N...
Five temperature-sensitive mutants of influenza virus A/FPV/Rostock/34 (H7N1), ts206, ts293, ts478, ts482, and ts651, displaying correct hemagglutinin (HA) insertion into the apical plasma membrane of MDCK cells at the permissive temperature but defective transport to the cell surface at the restrictive temperature, have been investigated. Nucleotide sequence analysis of the HA gene of the muta...
Some outbreaks involving highly pathogenic avian influenza viruses (HPAIV) of subtypes H5 and H7 were caused by avian-to-human transmissions. In nature, different influenza A viruses can reassort leading to new viruses with new characteristics. We decided to investigate the impact that the NS-segment of H5 HPAIV would have on viral pathogenicity of a classical avian H7 HPAIV in poultry, a natur...
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