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Novel avian calicivirus genome with type IV internal ribosomal entry site (IRES) in black-headed gull (Chroicocephalus ridibundus) in Hungary.

Gábor Reuter·Benigna Balázs·Róbert Mátics·Ákos Boros·Péter Pankovics
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Abstract

In this study, a taxonomically novel avian calicivirus detected and characterized by next generation sequencing, RT-PCR and Sanger sequencing methods in faecal specimen collected from black-headed gull (Chroicocephalus ridibundus) in Hungary. The complete genome length of the calicivirus strain gull/HA15097/HUN/2018 (PZ810127) is remarkably long, 8,845 nucleotides, which had type IV internal ribosomal entry site (IRES) at the 5', and a stem-loop-II-like (s2m) sequence motif at the 3' untranslated regions. The VP1 capsid protein had less than 26% aa identity to the members of the known calicivirus genera. Caliciviruses appear to be widespread not only in mammals including humans but also in various bird species.

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AnimalsHungaryGenome, ViralPhylogenyCharadriiformesInternal Ribosome Entry SitesCaliciviridaeBird DiseasesRNA, ViralCaliciviridae InfectionsFeces3' Untranslated RegionsBase SequenceJournal Article

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Gábor Reuter, Benigna Balázs, Róbert Mátics, Ákos Boros, Péter Pankovics. 2026-09-02. Novel avian calicivirus genome with type IV internal ribosomal entry site (IRES) in black-headed gull (Chroicocephalus ridibundus) in Hungary.. https://doi.org/10.1007/s00705-026-06733-y

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