Voprosy virusologii · 2024
Identification of a new alphacoronavirus (Coronaviridae: Alphacoronavirus) associated with the greater horseshoe bat (Rhinolophus ferrumequinum) in the south of European part of Russia.
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Lenshin S V, Vishnevskaya T V, Romashin A V, Bulycheva Y I, Vyshemirsky O I, Solovyeva S A, Gitelman A K, Pazilin A S, Lvov D K, Hu B, Shi Z, Alkhovsky S V
Аннотация
INTRODUCTION: Bats are recognized as primary natural reservoirs for alpha- and betacoronaviruses. The interspecies transmission of bat coronaviruses to other mammalian hosts, including livestock and humans, can lead to epidemics, epizootics, and global pandemics.
OBJECTIVE: This study aims to describe coronaviruses associated with horseshoe bats (Rhinolophus spp.) in the southern regions of the European part of Russia.
MATERIALS AND METHODS: Fecal samples were collected from bats inhabiting caves on the southern macroslope of the Greater Caucasus (Sochi-Adler region) during 2020, 2021, and 2024. Viral genomes were detected and analyzed using high-throughput sequencing (NGS) and RT-PCR.
RESULTS: A novel alphacoronavirus, designated Kudep virus (GenBank acc. # PQ649435), was identified in R. ferrumequinum. Presumably the Kudep virus represents a novel species within the subgenus Decacovirus of the genus Alphacoronavirus. The virus Showed 72% nucleotide identity to a Cardioderma bat coronavirus from Kenya and up to 67% nucleotide identity to the YN2012 virus group found in horseshoe bats in China. RT-PCR screening revealed active circulation of both Kudep virus and the previously described SARS-like betacoronavirus Khosta-1 in the study area. Infection rates in a single R. ferrumequinum colony during autumn 2021 reached 59.2% and 70.5% for Kudep and Khosta-1, respectively. Frequent co-infections with both viruses were observed in individual bats.
CONCLUSION: Our findings expand the understanding of the distribution of bat alphacoronaviruses and their genetic diversity. We demonstrate the presence of a persistent natural foci of two potentially zoonotic bat coronaviruses, ecologically associated with R. ferrumequinum in the southern European part of Russia.
OBJECTIVE: This study aims to describe coronaviruses associated with horseshoe bats (Rhinolophus spp.) in the southern regions of the European part of Russia.
MATERIALS AND METHODS: Fecal samples were collected from bats inhabiting caves on the southern macroslope of the Greater Caucasus (Sochi-Adler region) during 2020, 2021, and 2024. Viral genomes were detected and analyzed using high-throughput sequencing (NGS) and RT-PCR.
RESULTS: A novel alphacoronavirus, designated Kudep virus (GenBank acc. # PQ649435), was identified in R. ferrumequinum. Presumably the Kudep virus represents a novel species within the subgenus Decacovirus of the genus Alphacoronavirus. The virus Showed 72% nucleotide identity to a Cardioderma bat coronavirus from Kenya and up to 67% nucleotide identity to the YN2012 virus group found in horseshoe bats in China. RT-PCR screening revealed active circulation of both Kudep virus and the previously described SARS-like betacoronavirus Khosta-1 in the study area. Infection rates in a single R. ferrumequinum colony during autumn 2021 reached 59.2% and 70.5% for Kudep and Khosta-1, respectively. Frequent co-infections with both viruses were observed in individual bats.
CONCLUSION: Our findings expand the understanding of the distribution of bat alphacoronaviruses and their genetic diversity. We demonstrate the presence of a persistent natural foci of two potentially zoonotic bat coronaviruses, ecologically associated with R. ferrumequinum in the southern European part of Russia.