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  1. Article ; Online: Evolution and ecology of Jeilongvirus among wild rodents and shrews in Singapore.

    Ch'ng, Lena / Low, Dolyce H W / Borthwick, Sophie A / Zhang, Rong / Ong, Zoe A / Su, Yvonne C F / Hitch, Alan T / Smith, Gavin J D / Mendenhall, Ian H

    One health outlook

    2023  Volume 5, Issue 1, Page(s) 19

    Abstract: Background: Jeilongvirus was proposed as a new genus within the Paramyxoviridae in 2018. The advancement in metagenomic approaches has encouraged multiple reports of Jeilongvirus detection following the initial species discovery, enriching species ... ...

    Abstract Background: Jeilongvirus was proposed as a new genus within the Paramyxoviridae in 2018. The advancement in metagenomic approaches has encouraged multiple reports of Jeilongvirus detection following the initial species discovery, enriching species diversity and host range within the genus. However, Jeilongvirus remains understudied in Singapore, where interfaces between humans and small mammals are plentiful.
    Methods: Here, we utilized metagenomic sequencing for the exploration of viral diversity in small mammal tissues. Upon discovery of Jeilongvirus, molecular screening and full genome sequencing was conducted, with the data used to conduct statistical modelling and phylogenetic analysis.
    Results: We report the presence of Jeilongvirus in four species of Singapore wild small mammals, detected in their spleen and kidney. We show that full genomes of three Singapore Jeilongvirus encode for eight ORFs including the small hydrophobic and transmembrane proteins. All generated genomes cluster phylogenetically within the small mammal subclade, but share low genetic similarity with representative Jeilongvirus species. Statistical modelling showed no spatial or temporal patterns and differences among species, life history traits and habitat types.
    Conclusions: This study serves as a basis for understanding dynamics between Jeilongvirus and small mammal hosts in Singapore by displaying the virus generalist nature. In addition, the initial detection can help to invoke improved routine surveillance and detection of circulating pathogens in synanthropic hosts.
    Language English
    Publishing date 2023-12-18
    Publishing country England
    Document type Journal Article
    ISSN 2524-4655
    ISSN (online) 2524-4655
    DOI 10.1186/s42522-023-00094-1
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Co-circulation of alpha- and beta-coronaviruses in Pteropus vampyrus flying foxes from Indonesia.

    Ch'ng, Lena / Tsang, Susan M / Ong, Zoe A / Low, Dolyce H W / Wiantoro, Sigit / Smith, Ina L / Simmons, Nancy B / Su, Yvonne C F / Lohman, David J / Smith, Gavin J D / Mendenhall, Ian H

    Transboundary and emerging diseases

    2022  Volume 69, Issue 6, Page(s) 3917–3925

    Abstract: Bats are important reservoirs for alpha- and beta-coronaviruses. Coronaviruses (CoV) have been detected in pteropodid bats from several Southeast Asian countries, but little is known about coronaviruses in the Indonesian archipelago in proportion to its ... ...

    Abstract Bats are important reservoirs for alpha- and beta-coronaviruses. Coronaviruses (CoV) have been detected in pteropodid bats from several Southeast Asian countries, but little is known about coronaviruses in the Indonesian archipelago in proportion to its mammalian biodiversity. In this study, we screened pooled faecal samples from the Indonesian colonies of Pteropus vampyrus with unbiased next-generation sequencing. Bat CoVs related to Rousettus leschenaultii CoV HKU9 and Eidolon helvum CoV were detected. The 121 faecal samples were further screened using a conventional hemi-nested pan-coronavirus PCR assay. Three positive samples were successfully sequenced, and phylogenetic reconstruction revealed the presence of alpha- and beta-coronaviruses. CoVs belonging to the subgenera Nobecovirus, Decacovirus and Pedacovirus were detected in a single P. vampyrus roost. This study expands current knowledge of coronavirus diversity in Indonesian flying foxes, highlighting the need for longitudinal surveillance of colonies as continuing urbanization and deforestation heighten the risk of spillover events.
    MeSH term(s) Animals ; Coronavirus/genetics ; Chiroptera ; Indonesia/epidemiology ; Phylogeny ; Coronavirus Infections/veterinary
    Language English
    Publishing date 2022-12-02
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 2414822-2
    ISSN 1865-1682 ; 1865-1674
    ISSN (online) 1865-1682
    ISSN 1865-1674
    DOI 10.1111/tbed.14762
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Co‐circulation of alpha‐ and beta‐coronaviruses in Pteropus vampyrus flying foxes from Indonesia

    Ch'ng, Lena / Tsang, Susan M. / Ong, Zoe A. / Low, Dolyce H. W. / Wiantoro, Sigit / Smith, Ina L. / Simmons, Nancy B. / Su, Yvonne C. F. / Lohman, David J. / Smith, Gavin J. D. / Mendenhall, Ian H.

    Transboundary and Emerging Diseases. 2022 Nov., v. 69, no. 6 p.3917-3925

    2022  

    Abstract: Bats are important reservoirs for alpha‐ and beta‐coronaviruses. Coronaviruses (CoV) have been detected in pteropodid bats from several Southeast Asian countries, but little is known about coronaviruses in the Indonesian archipelago in proportion to its ... ...

    Abstract Bats are important reservoirs for alpha‐ and beta‐coronaviruses. Coronaviruses (CoV) have been detected in pteropodid bats from several Southeast Asian countries, but little is known about coronaviruses in the Indonesian archipelago in proportion to its mammalian biodiversity. In this study, we screened pooled faecal samples from the Indonesian colonies of Pteropus vampyrus with unbiased next‐generation sequencing. Bat CoVs related to Rousettus leschenaultii CoV HKU9 and Eidolon helvum CoV were detected. The 121 faecal samples were further screened using a conventional hemi‐nested pan‐coronavirus PCR assay. Three positive samples were successfully sequenced, and phylogenetic reconstruction revealed the presence of alpha‐ and beta‐coronaviruses. CoVs belonging to the subgenera Nobecovirus, Decacovirus and Pedacovirus were detected in a single P. vampyrus roost. This study expands current knowledge of coronavirus diversity in Indonesian flying foxes, highlighting the need for longitudinal surveillance of colonies as continuing urbanization and deforestation heighten the risk of spillover events.
    Keywords Pedacovirus ; Pteropus ; Rousettus ; biodiversity ; deforestation ; mammals ; monitoring ; phylogeny ; risk ; urbanization ; Indonesia
    Language English
    Dates of publication 2022-11
    Size p. 3917-3925.
    Publishing place John Wiley & Sons, Ltd
    Document type Article ; Online
    Note JOURNAL ARTICLE
    ZDB-ID 2414822-2
    ISSN 1865-1682 ; 1865-1674
    ISSN (online) 1865-1682
    ISSN 1865-1674
    DOI 10.1111/tbed.14762
    Database NAL-Catalogue (AGRICOLA)

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