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Timurkan MÖ, Aydin H, Polat E. Detection and Molecular Characterization of Kobuviruses: An Agent of Canine Viral Diarrhea. Curr Microbiol 2024; 81:309. [PMID: 39150576 DOI: 10.1007/s00284-024-03831-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Accepted: 08/02/2024] [Indexed: 08/17/2024]
Abstract
Clarifying the etiology of diarrhea cases of unknown cause is important in the fight against enteric infections. In this study, we aimed to investigate the role of canine kobuvirus (CaKoV), in cases of diarrhea of unknown origin in dogs. A total 121 swab samples from dogs with diarrhea were collected. Molecular analyses of the samples were performed. For this purpose, after the sequence reaction, a phylogenetic tree was created, and bioinformatics analyses were performed. The prevalence rate of CaKoV in the sampled population was determined as 16.5% (20/121). The presence of parvovirus and coronavirus, which are common viral agents in CaKoV-positive dogs, was determined as 35% (7/20) and 10% (2/20), respectively. The rate of dogs with only CaKoV detected was 65% (13/20). Phylogenetic analysis of CaKoV strains clustered together closely related to reference strains. There are very limited studies on the role of CaKoV in the etiology of diarrhea cases of unknown cause in dogs around the world. So far, only one study has been done on CaKoV in Turkey. In this report which includes molecular characterization and epidemiological data on CaKoV determined the importance of CaKoV in cases of diarrhea of unknown origin. More comprehensive studies are needed to better understand the pathogenesis, epidemiology, and biology of CaKoV and to determine effective strategies to combat it.
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Affiliation(s)
- Mehmet Özkan Timurkan
- Faculty of Veterinary Medicine, Department of Virology, Atatürk University, Erzurum, Turkey.
| | - Hakan Aydin
- Faculty of Veterinary Medicine, Department of Virology, Atatürk University, Erzurum, Turkey
| | - Erdal Polat
- Faculty of Veterinary Medicine, Department of Virology, Siirt University, Siirt, Turkey
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Ergunay K, Bourke BP, Reinbold-Wasson DD, Caicedo-Quiroga L, Vaydayko N, Kirkitadze G, Chunashvili T, Tucker CL, Linton YM. Novel clades of tick-borne pathogenic nairoviruses in Europe. INFECTION, GENETICS AND EVOLUTION : JOURNAL OF MOLECULAR EPIDEMIOLOGY AND EVOLUTIONARY GENETICS IN INFECTIOUS DISEASES 2024; 121:105593. [PMID: 38636618 DOI: 10.1016/j.meegid.2024.105593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Revised: 04/14/2024] [Accepted: 04/15/2024] [Indexed: 04/20/2024]
Abstract
Members of the Orthonairovirus genus (family Nairoviridae) include many tick-borne viruses of significant human and animal health impact, with several recently-documented pathogenic viruses lacking sufficient epidemiological information. We screened 215 adult ticks of seven species collected in Bulgaria, Georgia, Latvia and Poland for orthonairoviruses, followed by nanopore sequencing (NS) for genome characterization. Initial generic amplification revealed Sulina virus (SULV, Orthonairovirus sulinaense), for which an updated amplification assay was used, revealing an overall prevalence of 2.7% in Ixodes ricinus ticks from Latvia. Three complete and additional partial SULV genomes were generated, that consistently formed a separate, distinct clade with further intragroup divergence in the maximum likelihood analyses. Comparisons with previously described viruses from Romania exhibited similar genome topologies, albeit with divergent motifs and cleavage sites on the glycoprotein precursor. Preliminary evidence of recombination involving the S segment was documented, in addition to variations in predicted viral glycoproteins. Generic screening further identified Tacheng tick virus 1 (TCTV1, Orthonairovirus tachengense), with documented human infections, in Dermacentor reticulatus ticks from Poland, with a prevalence of 0.9%. Subsequent NS and assembly provided the first complete TCTV1 genome outside of China, where it was originally described. Phylogenetic analysis of virus genome segments revealed TCTV1-Poland as a discrete taxon within the TCTV1 cluster in the Orthonairovirus genus, representing a geographically segregated clade. Comparable genome topology with TCTV1 from China was observed, aside from minor variations in the M segment. Similar to SULV, TCTV1 exhibited several mismatches on previously described screening primer binding sites, likely to prevent amplification. These findings indicate presence of novel TCTV1 and SULV clades in Eastern Europe, confirming the expansion of orthonairoviruses with pathogenic potential.
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Affiliation(s)
- Koray Ergunay
- Walter Reed Biosystematics Unit, Museum Support Center MRC-534, Smithsonian Institution, 4210 Silver Hill Rd., Suitland, MD 20746, USA; One Health Branch, Walter Reed Army Institute of Research, 503 Robert Grant Ave., Silver Spring, MD 20910, USA; Department of Entomology, Smithsonian Institution - National Museum of Natural History, 10th St NE & Constitution Ave NE, Washington, DC 20002, USA; Department of Medical Microbiology, Virology Unit, Faculty of Medicine, Hacettepe University, Ankara, Turkey.
| | - Brian P Bourke
- Walter Reed Biosystematics Unit, Museum Support Center MRC-534, Smithsonian Institution, 4210 Silver Hill Rd., Suitland, MD 20746, USA; One Health Branch, Walter Reed Army Institute of Research, 503 Robert Grant Ave., Silver Spring, MD 20910, USA; Department of Entomology, Smithsonian Institution - National Museum of Natural History, 10th St NE & Constitution Ave NE, Washington, DC 20002, USA
| | | | - Laura Caicedo-Quiroga
- Walter Reed Biosystematics Unit, Museum Support Center MRC-534, Smithsonian Institution, 4210 Silver Hill Rd., Suitland, MD 20746, USA; One Health Branch, Walter Reed Army Institute of Research, 503 Robert Grant Ave., Silver Spring, MD 20910, USA; Department of Entomology, Smithsonian Institution - National Museum of Natural History, 10th St NE & Constitution Ave NE, Washington, DC 20002, USA
| | - Nataliya Vaydayko
- Walter Reed Army Institute of Research - Europe - Middle East, Tbilisi, Georgia
| | - Giorgi Kirkitadze
- Walter Reed Army Institute of Research - Europe - Middle East, Tbilisi, Georgia
| | - Tamar Chunashvili
- Walter Reed Army Institute of Research - Europe - Middle East, Tbilisi, Georgia
| | - Cynthia L Tucker
- Walter Reed Biosystematics Unit, Museum Support Center MRC-534, Smithsonian Institution, 4210 Silver Hill Rd., Suitland, MD 20746, USA; One Health Branch, Walter Reed Army Institute of Research, 503 Robert Grant Ave., Silver Spring, MD 20910, USA
| | - Yvonne-Marie Linton
- Walter Reed Biosystematics Unit, Museum Support Center MRC-534, Smithsonian Institution, 4210 Silver Hill Rd., Suitland, MD 20746, USA; One Health Branch, Walter Reed Army Institute of Research, 503 Robert Grant Ave., Silver Spring, MD 20910, USA; Department of Entomology, Smithsonian Institution - National Museum of Natural History, 10th St NE & Constitution Ave NE, Washington, DC 20002, USA
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Miller MJ, Perinet L, Alter HJ, Conry-Cantilena K, De Giorgi V. Natural History Studies, a Natural Next Step to Study Emerging Transfusion-Transmitted Infections. Transfus Med Rev 2024; 38:150820. [PMID: 38364616 DOI: 10.1016/j.tmrv.2024.150820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 01/09/2024] [Accepted: 01/10/2024] [Indexed: 02/18/2024]
Affiliation(s)
- Maureen J Miller
- Infectious Diseases Section, Department of Transfusion Medicine, National Institutes of Health Clinical Center, Bethesda, MD, USA.
| | - Lara Perinet
- Infectious Diseases Section, Department of Transfusion Medicine, National Institutes of Health Clinical Center, Bethesda, MD, USA
| | - Harvey J Alter
- Infectious Diseases Section, Department of Transfusion Medicine, National Institutes of Health Clinical Center, Bethesda, MD, USA
| | - Kathleen Conry-Cantilena
- Infectious Diseases Section, Department of Transfusion Medicine, National Institutes of Health Clinical Center, Bethesda, MD, USA
| | - Valeria De Giorgi
- Infectious Diseases Section, Department of Transfusion Medicine, National Institutes of Health Clinical Center, Bethesda, MD, USA
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Ergunay K, Bourke BP, Reinbold-Wasson DD, Nikolich MP, Nelson SP, Caicedo-Quiroga L, Vaydayko N, Kirkitadze G, Chunashvili T, Long LS, Blackburn JK, Cleary NG, Tucker CL, Linton YM. The expanding range of emerging tick-borne viruses in Eastern Europe and the Black Sea Region. Sci Rep 2023; 13:19824. [PMID: 37963929 PMCID: PMC10646066 DOI: 10.1038/s41598-023-46879-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 11/06/2023] [Indexed: 11/16/2023] Open
Abstract
We analysed both pooled and individual tick samples collected from four countries in Eastern Europe and the Black Sea region, using metagenome-based nanopore sequencing (NS) and targeted amplification. Initially, 1337 ticks, belonging to 11 species, were screened in 217 pools. Viruses (21 taxa) and human pathogens were detected in 46.5% and 7.3%, respectively. Tick-borne viral pathogens comprised Tacheng Tick Virus 2 (TTV2, 5.9%), Jingmen Tick Virus (JMTV, 0.9%) and Tacheng Tick Virus 1 (TTV1, 0.4%). An association of tick species with individual virus taxa was observed, with the exception of TTV2, which was observed in both Dermacentor and Haemaphysalis species. Individual ticks from pools with pathogen detection were then further screened by targeted amplification and then NS, which provided extensive genome data and revealed probable pathogen Haseki Tick Virus (HTV, 10.2%). Two distinct TTV2 clades were observed in phylogenetic analysis, one of which included closely related Dermacentor reticulatus Uukuviruses. JMTV detection indicated integrated virus sequences. Overall, we observed an expansion of newly documented pathogenic tick-borne viruses into Europe, with TTV1 being identified on the continent for the first time. These viruses should be included in the diagnostic assessment of symptomatic cases associated with tick bites and vector surveillance efforts. NS is shown as a useful tool for monitoring tick-associated pathogens in pooled or individual samples.
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Affiliation(s)
- Koray Ergunay
- Walter Reed Biosystematics Unit, Museum Support Center MRC-534, Smithsonian Institution, 4210 Silver Hill Rd., Suitland, MD, 20746-2863, USA.
- One Health Branch, Walter Reed Army Institute of Research, 503 Robert Grant Ave., Silver Spring, MD, 20910, USA.
- Department of Entomology, Smithsonian Institution-National Museum of Natural History, 10th St NE and Constitution Ave NE, Washington, DC, 20002, USA.
- Department of Medical Microbiology, Virology Unit, Faculty of Medicine, Hacettepe University, Ankara, Turkey.
| | - Brian P Bourke
- Walter Reed Biosystematics Unit, Museum Support Center MRC-534, Smithsonian Institution, 4210 Silver Hill Rd., Suitland, MD, 20746-2863, USA
- One Health Branch, Walter Reed Army Institute of Research, 503 Robert Grant Ave., Silver Spring, MD, 20910, USA
- Department of Entomology, Smithsonian Institution-National Museum of Natural History, 10th St NE and Constitution Ave NE, Washington, DC, 20002, USA
| | | | - Mikeljon P Nikolich
- Bacterial Diseases Branch, Walter Reed Army Institute of Research, Silver Spring, MD, 20910, USA
| | - Suppaluck P Nelson
- Walter Reed Biosystematics Unit, Museum Support Center MRC-534, Smithsonian Institution, 4210 Silver Hill Rd., Suitland, MD, 20746-2863, USA
- One Health Branch, Walter Reed Army Institute of Research, 503 Robert Grant Ave., Silver Spring, MD, 20910, USA
- Department of Entomology, Smithsonian Institution-National Museum of Natural History, 10th St NE and Constitution Ave NE, Washington, DC, 20002, USA
| | - Laura Caicedo-Quiroga
- Walter Reed Biosystematics Unit, Museum Support Center MRC-534, Smithsonian Institution, 4210 Silver Hill Rd., Suitland, MD, 20746-2863, USA
- One Health Branch, Walter Reed Army Institute of Research, 503 Robert Grant Ave., Silver Spring, MD, 20910, USA
- Department of Entomology, Smithsonian Institution-National Museum of Natural History, 10th St NE and Constitution Ave NE, Washington, DC, 20002, USA
| | - Nataliya Vaydayko
- Ukrainian Center of Diseases Control and Monitoring, Kyiv, 04071, Ukraine
| | - Giorgi Kirkitadze
- U.S. Army Medical Research Directorate-Georgia (USAMRD-G), Tbilisi, Georgia
| | - Tamar Chunashvili
- U.S. Army Medical Research Directorate-Georgia (USAMRD-G), Tbilisi, Georgia
| | - Lewis S Long
- Uniformed Services, University of the Health Sciences, Bethesda, MD, 20814, USA
| | - Jason K Blackburn
- Emerging Pathogens Institute, University of Florida, Gainesville, FL, 32610, USA
| | - Nora G Cleary
- One Health Center of Excellence, University of Florida, Gainesville, FL, 32603, USA
| | - Cynthia L Tucker
- Walter Reed Biosystematics Unit, Museum Support Center MRC-534, Smithsonian Institution, 4210 Silver Hill Rd., Suitland, MD, 20746-2863, USA
- One Health Branch, Walter Reed Army Institute of Research, 503 Robert Grant Ave., Silver Spring, MD, 20910, USA
| | - Yvonne-Marie Linton
- Walter Reed Biosystematics Unit, Museum Support Center MRC-534, Smithsonian Institution, 4210 Silver Hill Rd., Suitland, MD, 20746-2863, USA
- One Health Branch, Walter Reed Army Institute of Research, 503 Robert Grant Ave., Silver Spring, MD, 20910, USA
- Department of Entomology, Smithsonian Institution-National Museum of Natural History, 10th St NE and Constitution Ave NE, Washington, DC, 20002, USA
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Barnes M, Price DC. Endogenous Viral Elements in Ixodid Tick Genomes. Viruses 2023; 15:2201. [PMID: 38005880 PMCID: PMC10675110 DOI: 10.3390/v15112201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 10/19/2023] [Accepted: 10/23/2023] [Indexed: 11/26/2023] Open
Abstract
The documentation of endogenous viral elements (EVEs; virus-derived genetic material integrated into the genome of a nonviral host) has offered insights into how arthropods respond to viral infection via RNA interference pathways. Small non-coding RNAs derived from EVE loci serve to direct RNAi pathways in limiting replication and infection from cognate viruses, thus benefiting the host's fitness and, potentially, vectorial capacity. Here we use informatic approaches to analyze nine available genome sequences of hard ticks (Acari: Ixodidae; Rhipicephalus sanguineus, R. microplus, R. annulatus, Ixodes ricinus, I. persulcatus, I. scapularis, Hyalomma asiaticum, Haemaphysalis longicornis, and Dermacentor silvarum) to identify endogenous viral elements and to illustrate the shared ancestry of all elements identified. Our results highlight a broad diversity of viral taxa as having given rise to 1234 identified EVEs in ticks, with Mononegavirales (specifically Rhabdoviridae) well-represented in this subset of hard ticks. Further investigation revealed extensive adintovirus integrations in several Ixodes species, the prevalence of Bunyavirales EVEs (notably not observed in mosquitoes), and the presence of several elements similar to known emerging human and veterinary pathogens. These results will inform subsequent work on current and past associations with tick species with regard to the viruses from which their "viral fossils" are derived and may serve as a reference for quality control of various tick-omics data that may suffer from misidentification of EVEs as viral genetic material.
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Affiliation(s)
| | - Dana C. Price
- Center for Vector Biology, Department of Entomology, Rutgers, The State University of New Jersey, New Brunswick, NJ 08901, USA;
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