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In May 2022, we observed a substantial die-off of wild migratory waterbirds on Maliy Zhemchuzhniy Island in the Caspian Sea, Russia. The deaths were caused by highly pathogenic avian influenza A(H5N1) clade 2.3.4.4.b virus. Continued surveillance of influenza viruses in wild bird populations is needed to predict virus spread over long distances. [ABSTRACT FROM AUTHOR]

Two variants of highly pathogenic avian influenza A(H5N8) virus were detected in dead poultry in Western Siberia, Russia, during August and September 2020. One variant was represented by viruses of clade 2.3.4.4b and the other by a novel reassortant between clade 2.3.4.4b and Eurasian low pathogenicity avian influenza viruses circulating in wild birds. [ABSTRACT FROM AUTHOR]

We isolated Tamdy virus (TAMV; strain XJ01/TAMV/China/2018) from Hyalomma asiaticum ticks infesting Bactrian camels in Xinjiang, China, in 2018. The genome of the strain showed high nucleotide similarity with previously described TAMV strains from Asia. Our study highlights the potential threat of TAMV to public health in China. [ABSTRACT FROM AUTHOR]

The emergence of novel avian influenza viruses in migratory birds is of concern because of the potential for virus dissemination during fall migration. We report the identification of novel highly pathogenic avian influenza viruses of subtype H5N8, clade 2.3.4.4, and their reassortment with other avian influenza viruses in waterfowl and shorebirds of Siberia. [ABSTRACT FROM AUTHOR]

The article describes an outbreak of highly pathogenic avian influenza (HPAI) virus (H5N1) infection in wild birds in Mongolia and on Uvs-Nuur Lake in western Siberia, Russia. Real-time reverse transcription polymerase chain reaction (PCR) revealed the presence of type A influenza RNA and the H5 subtype in 10 dead birds belonging to four species, including great crested grebe and spoonbill. The virus may have been brought by the wild birds to Uvs-Nuur Lake from outside the country instead of coming from domestic poultry.