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Ogola EO, Kopp A, Bastos ADS, Slothouwer I, Omoga DCA, Osalla J, Sang R, Torto B, Junglen S, Tchouassi DP. Phlebovirus diversity in ticks from livestock in arid ecologies in Kenya. Ticks Tick Borne Dis 2023; 14:102087. [PMID: 36459866 DOI: 10.1016/j.ttbdis.2022.102087] [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: 06/04/2022] [Revised: 10/11/2022] [Accepted: 11/09/2022] [Indexed: 11/21/2022]
Abstract
Phleboviruses are emerging pathogens of public health importance. However, their association with ticks is poorly described, particularly in Africa. Here, adult ticks infesting cattle, goats and sheep were collected in two dryland pastoralist ecosystems of Kenya (Baringo and Kajiado counties) and were screened for infection with phleboviruses. Ticks mainly belonged to the species Rhipicephalus appendiculatus, Hyalomma impeltatum, and Hyalomma rufipes. A fragment of the RNA-dependent RNA polymerase (RdRp) gene was identified in thirty of 671 tick pools, of which twenty-nine were from livestock sampled in Baringo county. Phylogenetic analyses revealed that twenty-five sequences were falling in three clades within the group of tick-associated phleboviruses. The sequences of the three clades showed nucleotide distances 8%, 19% and 22%, respectively, to previously known viruses suggesting that these sequence fragments may belong to three distinct viruses. Viruses of the group of tick-associated phleboviruses have been found in several countries and continents but so far have not been associated with disease in humans or animals. In addition, five sequences were found to group with the sandfly-associated phleboviruses Bogoria virus, Perkerra virus and Ntepes virus recently detected in the same region. Further studies are needed to investigate the transmission and maintenance cycles of these viruses, as well as to assess their potential to infect vertebrates.
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Affiliation(s)
- Edwin O Ogola
- International Centre of Insect Physiology and Ecology (icipe), P.O. Box 30772-00100, Nairobi, Kenya; Department of Zoology and Entomology, University of Pretoria, Private Bag 20, Pretoria 0028, South Africa
| | - Anne Kopp
- Institute of Virology, Charité Universitätsmedizin Berlin, Corporate Member of Free University Berlin, Humboldt-University Berlin, and Berlin Institute of Health, Chariteplatz 1, 10117 Berlin, Germany
| | - Armanda D S Bastos
- Department of Zoology and Entomology, University of Pretoria, Private Bag 20, Pretoria 0028, South Africa
| | - Inga Slothouwer
- Institute of Virology, Charité Universitätsmedizin Berlin, Corporate Member of Free University Berlin, Humboldt-University Berlin, and Berlin Institute of Health, Chariteplatz 1, 10117 Berlin, Germany
| | - Dorcus C A Omoga
- International Centre of Insect Physiology and Ecology (icipe), P.O. Box 30772-00100, Nairobi, Kenya
| | - Josephine Osalla
- International Centre of Insect Physiology and Ecology (icipe), P.O. Box 30772-00100, Nairobi, Kenya
| | - Rosemary Sang
- International Centre of Insect Physiology and Ecology (icipe), P.O. Box 30772-00100, Nairobi, Kenya
| | - Baldwyn Torto
- International Centre of Insect Physiology and Ecology (icipe), P.O. Box 30772-00100, Nairobi, Kenya; Department of Zoology and Entomology, University of Pretoria, Private Bag 20, Pretoria 0028, South Africa
| | - Sandra Junglen
- Institute of Virology, Charité Universitätsmedizin Berlin, Corporate Member of Free University Berlin, Humboldt-University Berlin, and Berlin Institute of Health, Chariteplatz 1, 10117 Berlin, Germany.
| | - David P Tchouassi
- International Centre of Insect Physiology and Ecology (icipe), P.O. Box 30772-00100, Nairobi, Kenya.
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Efstratiou A, Karanis G, Karanis P. Tick-Borne Pathogens and Diseases in Greece. Microorganisms 2021; 9:microorganisms9081732. [PMID: 34442811 PMCID: PMC8399993 DOI: 10.3390/microorganisms9081732] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 08/06/2021] [Accepted: 08/08/2021] [Indexed: 11/18/2022] Open
Abstract
Tick-borne diseases (TBDs) are recognized as a serious and growing public health epidemic in Europe, and are a cause of major losses in livestock production worldwide. This review is an attempt to present a summary of results from studies conducted over the last century until the end of the year 2020 regarding ticks, tick-borne pathogens, and tick-borne diseases in Greece. We provide an overview of the tick species found in Greece, as well as the most important tick-borne pathogens (viruses, bacteria, protozoa) and corresponding diseases in circulation. We also consider prevalence data, as well as geographic and climatic conditions. Knowledge of past and current situations of TBDs, as well as an awareness of (risk) factors affecting future developments will help to find approaches to integrated tick management as part of the ‘One Health Concept’; it will assist in avoiding the possibility of hotspot disease emergencies and intra- and intercontinental transmission. Increased surveillance in Greece is required to ensure clear and effective policies for TBD control.
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Affiliation(s)
- Artemis Efstratiou
- National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Obihiro 080-8555, Japan;
| | - Gabriele Karanis
- Orthopädische Rehabilitationsklinik, Eisenmoorbad Bad Schmiedeberg Kur GmbH, 06905 Bad Schmiedeberg, Germany;
| | - Panagiotis Karanis
- Medical Faculty and University Hospital, The University of Cologne, 50923 Cologne, Germany
- Department of Basic and Clinical Sciences, University of Nicosia Medical School, 21 Ilia Papakyriakou, 2414 Engomi. P.O. Box 24005, Nicosia CY-1700, Cyprus
- Correspondence:
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3
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Simulundu E, Mbambara S, Chambaro HM, Sichibalo K, Kajihara M, Nalubamba KS, Sawa H, Takada A, Changula K, Chitanga S. Prevalence and genetic diversity of Shibuyunji virus, a novel tick-borne phlebovirus identified in Zambia. Arch Virol 2021; 166:915-919. [PMID: 33475831 DOI: 10.1007/s00705-020-04924-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Accepted: 11/04/2020] [Indexed: 11/27/2022]
Abstract
Tick-borne pathogens are an emerging public health threat worldwide. However, information on tick-borne viruses is scanty in sub-Saharan Africa. Here, by RT-PCR, 363 ticks (Amblyomma, Hyalomma and Rhipicephalus) in the Namwala and Livingstone districts of Zambia were screened for tick-borne phleboviruses (TBPVs). TBPVs (L gene) were detected in 19 (5.2%) Rhipicephalus ticks in Namwala. All the detected TBPVs were Shibuyunji viruses. Phylogenetically, they were closely related to American dog tick phlebovirus. This study highlights the possible role of Rhipicephalus ticks as the main host of Shibuyunji virus and suggests that these viruses may be present outside the area where they were initially discovered.
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Affiliation(s)
- Edgar Simulundu
- Macha Research Trust, P.O. Box 630166, Choma, Zambia.
- Department of Disease Control, School of Veterinary Medicine, University of Zambia, Lusaka, Zambia.
| | - Saidon Mbambara
- Department of Disease Control, School of Veterinary Medicine, University of Zambia, Lusaka, Zambia
- Department of Biomedical Sciences, Tropical Diseases Research Center, Ndola, Zambia
| | - Herman M Chambaro
- Research Center for Zoonosis Control, Hokkaido University, Sapporo, Japan
- Virology Unit, Central Veterinary Research Institute, Ministry of Fisheries and Livestock, Lusaka, Zambia
| | - Karen Sichibalo
- Department of Biomedical Sciences, School of Health Sciences, University of Zambia, Lusaka, Zambia
| | - Masahiro Kajihara
- Research Center for Zoonosis Control, Hokkaido University, Sapporo, Japan
| | - King S Nalubamba
- Department of Clinical Studies, School of Veterinary Medicine, University of Zambia, Lusaka, Zambia
| | - Hirofumi Sawa
- Department of Disease Control, School of Veterinary Medicine, University of Zambia, Lusaka, Zambia
- Research Center for Zoonosis Control, Hokkaido University, Sapporo, Japan
| | - Ayato Takada
- Department of Disease Control, School of Veterinary Medicine, University of Zambia, Lusaka, Zambia
- Research Center for Zoonosis Control, Hokkaido University, Sapporo, Japan
| | - Katendi Changula
- Department of Paraclinical Studies, School of Veterinary Medicine, University of Zambia, Lusaka, Zambia
| | - Simbarashe Chitanga
- Department of Biomedical Sciences, School of Health Sciences, University of Zambia, Lusaka, Zambia
- Department of Pathobiology, School of Veterinary Medicine, University of Namibia, Windhoek, Namibia
- School of Life Sciences, College of Agriculture, Engineering and Sciences, University of KwaZulu-Natal, Durban, South Africa
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4
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Klimentov AS, Belova OA, Kholodilov IS, Butenko AM, Bespyatova LA, Bugmyrin SV, Chernetsov N, Ivannikova AY, Kovalchuk IV, Nafeev AA, Oorzhak ND, Pilikova OM, Polienko AE, Purmak KA, Romanenko EN, Romanova LI, Saryglar AA, Solomashchenko NI, Shamsutdinov AF, Vakalova EV, Lukashev AN, Karganova GG, Gmyl AP. Phlebovirus sequences detected in ticks collected in Russia: Novel phleboviruses, distinguishing criteria and high tick specificity. INFECTION GENETICS AND EVOLUTION 2020; 85:104524. [PMID: 32891876 DOI: 10.1016/j.meegid.2020.104524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 08/24/2020] [Accepted: 08/29/2020] [Indexed: 10/23/2022]
Abstract
Phlebovirus is an abundant and rather heterogeneous genus within the Phenuiviridae family (order Bunyavirales). The genus Phlebovirus is divided into two antigenic complexes, which also correspond to the main vector: sandflies/mosquitoes and ticks. Previously, only sandfly/mosquito-borne phleboviruses were associated with human disease, such as Rift Valley fever virus, Toscana virus, Sicilian and Naples Sandfly fever viruses and others. Until recently, tick-borne phleboviruses were not considered as human pathogens. After the discovery of severe fever with thrombocytopenia syndrome, interest to tick-borne phleboviruses has increased dramatically. In the last decade, many novel phleboviruses have been reported in different regions. Despite this, the diversity, ecology and pathogenicity of these viruses still remain obscure. The aim of this work was to study the diversity of phleboviruses in ticks collected in several regions of Russia. We used pan-phlebovirus RT-PCR assays based on multiple degenerate primers targeting the polymerase gene fragment. Arthropod specimens were collected from 2005 to 2018. A total of 5901 Ixodidae ticks combined into 1116 pools were screened. A total of 160 specific amplicons were produced. In three cases RT-PCR assays amplified two distinct viruses from same tick pools. Direct sequencing of amplicons and subsequent phylogenetic analysis revealed twelve representatives of divergent phlebovirus groups. Based on the distribution of pairwise nucleotide sequence identity values, a cut-off (88%) was suggested to distinguish tick-borne phleboviruses. According to this provisional criterion, two viruses found here could be termed novel, while ten viruses have been described in previous studies. Detected phleboviruses demonstrated almost perfect specificity to a tick species or, at least, a genus. The same pattern was observed for tick-borne phleboviruses found in different studies around the world. Viruses that grouped together on a phylogenetic tree and differed less than this sequence identity threshold suggested above were hosted by ticks from the same genus.
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Affiliation(s)
- Alexander S Klimentov
- Chumakov Federal Scientific Center for Research and Development of Immune-and-Biological Products of RAS, Moscow 108819, Russia; Gamaleya Research Center for Epidemiology and Microbiology of the Ministry of Health of the Russian Federation, Moscow 123098, Russia.
| | - Oxana A Belova
- Chumakov Federal Scientific Center for Research and Development of Immune-and-Biological Products of RAS, Moscow 108819, Russia
| | - Ivan S Kholodilov
- Chumakov Federal Scientific Center for Research and Development of Immune-and-Biological Products of RAS, Moscow 108819, Russia
| | - Alexander M Butenko
- Gamaleya Research Center for Epidemiology and Microbiology of the Ministry of Health of the Russian Federation, Moscow 123098, Russia
| | - Liubov A Bespyatova
- Institute of Biology, Karelian Research Centre of RAS, Petrozavodsk 185910, Russia
| | - Sergey V Bugmyrin
- Institute of Biology, Karelian Research Centre of RAS, Petrozavodsk 185910, Russia
| | - Nikita Chernetsov
- Zoological Institute of RAS, St. Petersburg 199034, Russia; Dept. Vertebrate Zoology, St. Petersburg State University, St. Petersburg 199034, Russia
| | - Anna Y Ivannikova
- Chumakov Federal Scientific Center for Research and Development of Immune-and-Biological Products of RAS, Moscow 108819, Russia
| | - Irina V Kovalchuk
- Office of Rospotrebnadzor in the Stavropol Territory, Stavropol 355008, Russia; Stavropol State Medical University, Stavropol 355017, Russia
| | - Alexander A Nafeev
- Center for Hygiene and Epidemiology in the Ulyanovsk Region, Ulyanovsk 432005, Russia
| | | | - Olga M Pilikova
- Black Sea Anti-Plague Station of Rospotrebnadzor, Novorossiysk 353919, Russia
| | - Alexandra E Polienko
- Chumakov Federal Scientific Center for Research and Development of Immune-and-Biological Products of RAS, Moscow 108819, Russia
| | - Kristina A Purmak
- Center for Hygiene and Epidemiology in the Stavropol Kray, Stavropol 355008, Russia
| | - Evgeniya N Romanenko
- Center for Hygiene and Epidemiology in the Stavropol Kray, Stavropol 355008, Russia
| | - Lidiya Iu Romanova
- Chumakov Federal Scientific Center for Research and Development of Immune-and-Biological Products of RAS, Moscow 108819, Russia; Institute for Translational Medicine and Biotechnology, Sechenov University, Moscow 119991, Russia
| | | | - Nataliya I Solomashchenko
- Stavropol State Medical University, Stavropol 355017, Russia; Center for Hygiene and Epidemiology in the Stavropol Kray, Stavropol 355008, Russia
| | - Anton F Shamsutdinov
- Kazan Scientific Research Institute of Epidemiology and Microbiology of Rospotrebnadzor, Kazan 420015, Russia
| | - Elena V Vakalova
- Astrakhan Anti-Plague Station of Rospotrebnadzor, Astrakhan 414000, Russia
| | - Alexander N Lukashev
- Martsinovsky Institute of Medical Parasitology, Tropical and Vector-Borne Diseases, Sechenov University, Moscow 119435, Russia
| | - Galina G Karganova
- Chumakov Federal Scientific Center for Research and Development of Immune-and-Biological Products of RAS, Moscow 108819, Russia; Institute for Translational Medicine and Biotechnology, Sechenov University, Moscow 119991, Russia
| | - Anatoly P Gmyl
- Chumakov Federal Scientific Center for Research and Development of Immune-and-Biological Products of RAS, Moscow 108819, Russia
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5
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Ergünay K. Revisiting new tick-associated viruses: what comes next? Future Virol 2020. [DOI: 10.2217/fvl-2019-0149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Tick-borne viral infections continue to cause diseases with considerable impact on humans, livestock, companion animals and wildlife. Many lack specific therapeutics and vaccines are available for only a few. Tick-borne viruses will continue to emerge, facilitated by anthroponotic factors related to the modern lifestyle. We persistently identify and are obliged to cope with new examples of emerging tick-borne viral diseases and novel viruses today. Many new strains have been detected in vertebrates and arthropods, some causing severe diseases likely to challenge public and veterinary health. This manuscript aims to provide a narrative overview of recently-described tick-associated viruses, with perspectives on changing paradigms in identification, screening and control.
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Affiliation(s)
- Koray Ergünay
- Hacettepe University, Faculty of Medicine, Department of Medical Microbiology, Virology Unit, Ankara 06100, Turkey
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6
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Kobayashi D, Murota K, Itokawa K, Ejiri H, Amoa-Bosompem M, Faizah AN, Watanabe M, Maekawa Y, Hayashi T, Noda S, Yamauchi T, Komagata O, Sawabe K, Isawa H. RNA virome analysis of questing ticks from Hokuriku District, Japan, and the evolutionary dynamics of tick-borne phleboviruses. Ticks Tick Borne Dis 2019; 11:101364. [PMID: 31928929 DOI: 10.1016/j.ttbdis.2019.101364] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Revised: 12/13/2019] [Accepted: 12/21/2019] [Indexed: 01/23/2023]
Abstract
Tick-borne viruses have emerged recently in many parts of the world, and the discoveries of novel tick-borne viruses have been accelerated by the development of high-throughput sequencing technology. In this study, a cost-efficient small benchtop next-generation sequencer, the Illumina MiniSeq, was used for the RNA virome analysis of questing ticks collected from Hokuriku District, Japan, and assessed for their potential utility in a tick-borne virus surveillance system. We detected two phleboviruses [Kabuto Mountain virus (KAMV) and Okutama tick virus (OKTV)], a coltivirus [Tarumizu tick virus (TarTV)], and a novel iflavirus [Hamaphysalis flava iflavirus (HfIFV)] from tick homogenates and/or cell culture supernatants after virus isolation processes. The number of sequence reads from KAMV and TarTV markedly increased when cell culture supernatants were used, indicating a successful isolation of these viruses. In contrast, OKTV and HfIFV were detected only in tick homogenates but not from cell culture supernatants, suggesting a failure to isolate these viruses. Furthermore, we performed genomic and phylogenetic analyzes of these detected viruses. OKTV and some phleboviruses discovered recently by NGS-based methods were probably deficient in the M genome segment, which are herein proposed as M segment-deficient phlebovirus (MdPV). A phylogenetic analysis of phleboviruses, including MdPV, suggested that Uukuniemi and Kaisodi group viruses and kabutoviruses evolved from an ancestral MdPV, which provides insights into the evolutionary dynamics of phleboviruses as emerging pathogens.
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Affiliation(s)
- Daisuke Kobayashi
- Department of Medical Entomology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan; Department of Research Promotion, Japan Agency for Medical Research and Development, 20F Yomiuri Shimbun Bldg. 1-7-1 Otemachi, Chiyoda-ku, Tokyo 100-0004, Japan
| | - Katsunori Murota
- Department of Medical Entomology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan; Kyushu Research Station, National Institute of Animal Health, NARO, 2702 Chuzan, Kagoshima 891-0105, Japan
| | - Kentaro Itokawa
- Department of Medical Entomology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan; Pathogen genomics center, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Hiroko Ejiri
- Department of Medical Entomology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan; Division of infectious Diseases Epidemiology and Control, National Defense Medical Research Institute, National Defense Medical College, 3-2 Namiki, Tokorozawa, Saitama 359-8513, Japan
| | - Michael Amoa-Bosompem
- Department of Medical Entomology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Astri Nur Faizah
- Department of Medical Entomology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Mamoru Watanabe
- Department of Medical Entomology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Yoshihide Maekawa
- Department of Medical Entomology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Toshihiko Hayashi
- Department of Medical Entomology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Shinichi Noda
- Research Center for the Pacific Islands, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-8580, Japan
| | - Takeo Yamauchi
- Laboratory of Entomology, Obihiro University of Agriculture and Veterinary Medicine, Inada-cho, Obihiro, Hokkaido 080-8555, Japan
| | - Osamu Komagata
- Department of Medical Entomology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Kyoko Sawabe
- Department of Medical Entomology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Haruhiko Isawa
- Department of Medical Entomology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan.
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7
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Novel Tick Phlebovirus Genotypes Lacking Evidence for Vertebrate Infections in Anatolia and Thrace, Turkey. Viruses 2019; 11:v11080703. [PMID: 31374842 PMCID: PMC6723390 DOI: 10.3390/v11080703] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 07/15/2019] [Accepted: 07/18/2019] [Indexed: 01/23/2023] Open
Abstract
We screened ticks and human clinical specimens to detect and characterize tick phleboviruses and pathogenicity in vertebrates. Ticks were collected at locations in Istanbul (Northwest Anatolia, Thrace), Edirne, Kırklareli, and Tekirdağ (Thrace), Mersin (Mediterranean Anatolia), Adiyaman and Şanlıurfa (Southeastern Anatolia) provinces from 2013-2018 and were analyzed following morphological identification and pooling. Specimens from individuals with febrile disease or meningoencephalitic symptoms of an unknown etiology were also evaluated. The pools were screened via generic tick phlebovirus amplification assays and products were sequenced. Selected pools were used for cell culture and suckling mice inoculations and next generation sequencing (NGS). A total of 7492 ticks were screened in 609 pools where 4.2% were positive. A phylogenetic sequence clustering according to tick species was observed. No human samples were positive. NGS provided near-complete viral replicase coding sequences in three pools. A comprehensive analysis revealed three distinct, monophyletic virus genotypes, comprised of previously-described viruses from Anatolia and the Balkans, with unique fingerprints in conserved amino acid motifs in viral replicase. A novel tick phlebovirus group was discovered circulating in the Balkans and Turkey, with at least three genotypes or species. No evidence for replication in vertebrates or infections in clinical cases could be demonstrated.
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Petersen A, Rosenstierne MW, Rasmussen M, Fuursted K, Nielsen HV, O'Brien Andersen L, Bødker R, Fomsgaard A. Field samplings of Ixodes ricinus ticks from a tick-borne encephalitis virus micro-focus in Northern Zealand, Denmark. Ticks Tick Borne Dis 2019; 10:1028-1032. [PMID: 31151922 DOI: 10.1016/j.ttbdis.2019.05.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Revised: 04/25/2019] [Accepted: 05/17/2019] [Indexed: 12/01/2022]
Abstract
In 2008-2009 a tick-borne encephalitis virus (TBEV) micro-focus was detected in Northern Zealand, Denmark. No new cases of TBE with an epidemiological link to Northern Zealand has been reported since. Here we undertook to investigate Ixodes ricinus ticks from this endemic micro-focus in 2016 and 2017. In addition to TBEV, I. ricinus ticks may host other pathogens that include Borrelia spp., Babesia spp., Rickettsia spp. and Neoehrlichia mikurensis, together with various endosymbiont microorganisms. To detect multiple organisms we used a metagenomics PanVirus microarray and next-generation sequencing to examine the persistence and evolution of other emerging viruses, bacteria and parasites. Here we report the rise and fall of the Danish TBEV micro-focus in Northern Zealand. However, we identify for the first time in Danish I. ricinus ticks the presence of Uukuniemi virus in addition to a tick-borne phlebovirus and a range of bacteria.
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Affiliation(s)
- Andreas Petersen
- European Program for Public Health Microbiology Training (EUPHEM), European Centre for Disease Prevention and Control, (ECDC), Solna, Sweden; Virus Research and Development Laboratory, Department of Virus and Microbiological Special Diagnosis, Statens Serum Institut, Copenhagen, Denmark; Bacteria, Parasites and Fungi, Infection Preparedness, Statens Serum Institut, Copenhagen, Denmark.
| | - Maiken Worsøe Rosenstierne
- Virus Research and Development Laboratory, Department of Virus and Microbiological Special Diagnosis, Statens Serum Institut, Copenhagen, Denmark
| | - Morten Rasmussen
- Virus Research and Development Laboratory, Department of Virus and Microbiological Special Diagnosis, Statens Serum Institut, Copenhagen, Denmark
| | - Kurt Fuursted
- Bacteria, Parasites and Fungi, Infection Preparedness, Statens Serum Institut, Copenhagen, Denmark
| | - Henrik Vedel Nielsen
- Bacteria, Parasites and Fungi, Infection Preparedness, Statens Serum Institut, Copenhagen, Denmark
| | - Lee O'Brien Andersen
- Bacteria, Parasites and Fungi, Infection Preparedness, Statens Serum Institut, Copenhagen, Denmark
| | - René Bødker
- DTU National Veterinary Institute, Technical University of Denmark, Kgs. Lyngby, Denmark
| | - Anders Fomsgaard
- Virus Research and Development Laboratory, Department of Virus and Microbiological Special Diagnosis, Statens Serum Institut, Copenhagen, Denmark; Infectious Disease Research Unit, Clinical Institute, University of Southern Denmark, Odense, Denmark
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9
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Pimentel V, Afonso R, Nunes M, Vieira ML, Bravo-Barriga D, Frontera E, Martinez M, Pereira A, Maia C, Paiva-Cardoso MDN, Freitas FB, Abecasis AB, Parreira R. Geographic dispersal and genetic diversity of tick-borne phleboviruses (Phenuiviridae, Phlebovirus) as revealed by the analysis of L segment sequences. Ticks Tick Borne Dis 2019; 10:942-948. [PMID: 31078467 DOI: 10.1016/j.ttbdis.2019.05.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Revised: 04/30/2019] [Accepted: 05/02/2019] [Indexed: 11/27/2022]
Abstract
The large diversity of new tick-borne phleboviruses, and the negative impacts of the virulent viruses on human/animal health have led to a growing interest in their analysis. In this report, new insights are brought out into the diversity of putative phleboviruses circulating in Portugal (both the continental territory and the islands of São Miguel, in the Azores, and Madeira), as well as in the Spanish western regions of Extremadura and Castilla and León. Phlebovirus sequences were frequently detected (L-segment) from both questing and feeding ticks, but especially in Rhipicephalus sanguineus sensu lato (s.l.) specimens. These sequences were detected in adult ticks, as well as nymphs and eggs, supporting the hypothesis of viral maintenance by vertical transmission. Though multiple genetic groups could be identified in phylogenetic trees (AnLuc, KarMa, RiPar virus 1, and Spanish group 1 and 2), all the sequences from Portugal and Spain shared common ancestry with other viral sequence obtained from samples collected over a large geographic coverage. Spatiotemporal analysis placed Middle-East as the geographic origin of the most recent common ancestor (MRCA) of all phleboviruses analysed in the present study. More recent viral transitions might include migrations from Spain to continental Portugal, and from there to the Portuguese Islands. Our findings suggest that the time of the MRCA of phleboviruses was dated around 225 years ago [95% HPD: 124-387 year before the last sampling date].
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Affiliation(s)
- Victor Pimentel
- Unidade de Saúde Pública Internacional e Bioestatística, Instituto de Higiene e Medicina Tropical (IHTM)/Universidade Nova de Lisboa (UNL), and Global Health and Tropical Medicine (GHTM) research center, Lisboa, Portugal
| | - Rita Afonso
- Unidade de Microbiologia Médica, (IHMT/UNL, and GHTM), Oeiras, Portugal
| | - Mónica Nunes
- iBET, Instituto de Biologia Experimental e Tecnológica, Oeiras, Portugal
| | | | - Daniel Bravo-Barriga
- Parasitology and Parasitic Diseases, Animal Health Department, Veterinary Faculty, University of Extremadura, Cáceres, Spain
| | - Eva Frontera
- Parasitology and Parasitic Diseases, Animal Health Department, Veterinary Faculty, University of Extremadura, Cáceres, Spain
| | - Manuel Martinez
- Parasitology and Parasitic Diseases, Animal Health Department, Veterinary Faculty, University of Extremadura, Cáceres, Spain
| | - André Pereira
- Unidade de Parasitologia Médica (IHMT/UNL, and GHTM), Lisboa, Portugal
| | - Carla Maia
- Unidade de Parasitologia Médica (IHMT/UNL, and GHTM), Lisboa, Portugal
| | - Maria das Neves Paiva-Cardoso
- Departmento de Ciências Veterinárias, Universidade de Trás-os-Montes e Alto Douro (UTAD) and Centro de Investigação e Tecnologias Agroambientais e Biológicas (CITAB), Vila Real, Portugal
| | | | - Ana B Abecasis
- Unidade de Saúde Pública Internacional e Bioestatística, Instituto de Higiene e Medicina Tropical (IHTM)/Universidade Nova de Lisboa (UNL), and Global Health and Tropical Medicine (GHTM) research center, Lisboa, Portugal
| | - Ricardo Parreira
- Unidade de Microbiologia Médica, (IHMT/UNL, and GHTM), Oeiras, Portugal.
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Ohlendorf V, Marklewitz M, Kopp A, Yordanov S, Drosten C, Junglen S. Huge diversity of phleboviruses in ticks from Strandja Nature Park, Bulgaria. Ticks Tick Borne Dis 2019; 10:697-703. [DOI: 10.1016/j.ttbdis.2019.03.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 02/26/2019] [Accepted: 03/04/2019] [Indexed: 10/27/2022]
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11
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Torii S, Matsuno K, Qiu Y, Mori-Kajihara A, Kajihara M, Nakao R, Nao N, Okazaki K, Sashika M, Hiono T, Okamatsu M, Sakoda Y, Ebihara H, Takada A, Sawa H. Infection of newly identified phleboviruses in ticks and wild animals in Hokkaido, Japan indicating tick-borne life cycles. Ticks Tick Borne Dis 2018; 10:328-335. [PMID: 30478009 DOI: 10.1016/j.ttbdis.2018.11.012] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Revised: 10/31/2018] [Accepted: 11/12/2018] [Indexed: 11/25/2022]
Abstract
Recent discoveries of tick-borne pathogens have raised public health concerns on tick-borne infectious diseases and emphasize the need to assess potential risks of unrecognized tick-borne pathogens. First, to determine the existence of tick-borne phleboviruses (TBPVs), genetic surveillance of phleboviruses in ticks was conducted mainly in Hokkaido, the northernmost island in Japan from 2013 to 2015. Genes of two TBPVs, previously reported as Mukawa virus (MKWV) and a newly identified relative of MKWV, Kuriyama virus (KURV), were detected and the viruses were isolated from Ixodes persulcatus collected in Hokkaido, but not in I. persulcatus collected from other areas of Japan. These viruses were phylogenetically and antigenically similar to each other. Next, to investigate the infection of MKWV in mammals, serum samples from wildlife captured in Hokkaido from 2007 to 2011 were used for serological screening. Neutralizing antibodies against MKWV were detected in both Yezo-deer (Cervus nippon yesoensis) (2/50) and raccoons (Procyon lotor) (16/64). However, no infectious MKWV was recovered from laboratory mice in experimental infections, though viral RNAs were detected in their tissues. Thus, MKWV and KURV may maintain tick-mammalian life cycles in Hokkaido, suggesting their potential as causative agents of tick-borne diseases in mammals.
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Affiliation(s)
- Shiho Torii
- Division of Molecular Pathobiology, Research Center for Zoonosis Control, Hokkaido University, Sapporo, Japan; Laboratory of Microbiology, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan
| | - Keita Matsuno
- Laboratory of Microbiology, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan; Global Institution for Collaborative Research and Education (GI-CoRE), Hokkaido University, Sapporo, Japan.
| | - Yongjin Qiu
- Division of Collaboration and Education, Hokkaido University Research Center for Zoonosis Control, Sapporo, Japan
| | - Akina Mori-Kajihara
- Division of Global Epidemiology, Research Center for Zoonosis Control, Hokkaido University, Sapporo, Japan
| | - Masahiro Kajihara
- Division of Global Epidemiology, Research Center for Zoonosis Control, Hokkaido University, Sapporo, Japan
| | - Ryo Nakao
- Laboratory of Parasitology, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan
| | - Naganori Nao
- Division of Global Epidemiology, Research Center for Zoonosis Control, Hokkaido University, Sapporo, Japan
| | - Katsunori Okazaki
- Laboratory of Microbiology and Immunology, Faculty of Pharmaceutical Sciences, Health Sciences University of Hokkaido, Tobetsu, Japan
| | - Mariko Sashika
- Laboratory of Wildlife Biology and Medicine, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan
| | - Takahiro Hiono
- Laboratory of Microbiology, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan
| | - Masatoshi Okamatsu
- Laboratory of Microbiology, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan
| | - Yoshihiro Sakoda
- Laboratory of Microbiology, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan; Global Institution for Collaborative Research and Education (GI-CoRE), Hokkaido University, Sapporo, Japan
| | - Hideki Ebihara
- Department of Molecular Medicine, Mayo Clinic, Rochester, MN, USA
| | - Ayato Takada
- Global Institution for Collaborative Research and Education (GI-CoRE), Hokkaido University, Sapporo, Japan; Division of Global Epidemiology, Research Center for Zoonosis Control, Hokkaido University, Sapporo, Japan; Department of Disease Control, School of Veterinary Medicine, University of Zambia, Lusaka, Zambia
| | - Hirofumi Sawa
- Division of Molecular Pathobiology, Research Center for Zoonosis Control, Hokkaido University, Sapporo, Japan; Global Institution for Collaborative Research and Education (GI-CoRE), Hokkaido University, Sapporo, Japan; Department of Disease Control, School of Veterinary Medicine, University of Zambia, Lusaka, Zambia; Global Virus Network, Baltimore, USA
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12
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Brinkmann A, Dinçer E, Polat C, Hekimoğlu O, Hacıoğlu S, Földes K, Özkul A, Öktem İMA, Nitsche A, Ergünay K. A metagenomic survey identifies Tamdy orthonairovirus as well as divergent phlebo-, rhabdo-, chu- and flavi-like viruses in Anatolia, Turkey. Ticks Tick Borne Dis 2018; 9:1173-1183. [PMID: 29728337 DOI: 10.1016/j.ttbdis.2018.04.017] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Revised: 04/23/2018] [Accepted: 04/23/2018] [Indexed: 11/29/2022]
Abstract
We employed a direct metagenomic approach via next-generation sequencing for a cross-sectional investigation of viruses in 10 tick pools, collected from Aegean, Mediterranean and central Anatolian locations in Turkey. Sequences from all genome segments of Tamdy orthonairovirus (family Nairoviridae) were characterized in ticks collected from a Meriones tristrami. We further obtained near-complete L and partial S segments of several tick-associated phleboviruses (family Phenuiviridae), including Tacheng tick virus 2 and a novel virus, tentatively named as the tick phlebovirus Anatolia. Partial NS5-coding region of recently-described flavi-like virus (Tacheng tick virus 8) was further detected. Moreover, near-complete and polymerase-coding regions of arthropod-associated rhabdoviruses as well as sequences closely-related to the members of the newly-proposed virus family, the Chuviridae, were characterized. Despite origins of the viral sequences could not be fully elucidated, the findings suggest the circulation of diverse arthropod and tick-associated viruses in Anatolia. Occurrence and outcome of vertebrate exposure and probable health impact of these viruses require further investigation. We also report the initial detection of Tamdy orthonairovirus, an established human pathogen, which should be included in the diagnostic workup of infections with unknown etiology.
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Affiliation(s)
- Annika Brinkmann
- Robert Koch Institute, Center for Biological Threats and Special Pathogens 1 (ZBS-1), 13353, Berlin, Germany
| | - Ender Dinçer
- Mersin University, Advanced Technology Education, Research and Application Center, 33110, Mersin, Turkey
| | - Ceylan Polat
- Dokuz Eylul University, Faculty of Medicine, Department of Medical Microbiology, 35340, Izmir, Turkey
| | - Olcay Hekimoğlu
- Hacettepe University, Faculty of Science, Department of Biology, Division of Ecology, 06800, Ankara, Turkey
| | - Sabri Hacıoğlu
- Ankara University, Faculty of Veterinary Medicine, Department of Virology, 06110, Ankara, Turkey
| | - Katalin Földes
- Ankara University, Faculty of Veterinary Medicine, Department of Virology, 06110, Ankara, Turkey
| | - Aykut Özkul
- Ankara University, Faculty of Veterinary Medicine, Department of Virology, 06110, Ankara, Turkey
| | - İbrahim Mehmet Ali Öktem
- Dokuz Eylul University, Faculty of Medicine, Department of Medical Microbiology, 35340, Izmir, Turkey
| | - Andreas Nitsche
- Robert Koch Institute, Center for Biological Threats and Special Pathogens 1 (ZBS-1), 13353, Berlin, Germany
| | - Koray Ergünay
- Robert Koch Institute, Center for Biological Threats and Special Pathogens 1 (ZBS-1), 13353, Berlin, Germany; Hacettepe University, Faculty of Medicine, Department of Medical Microbiology, Virology Unit, 06100, Ankara, Turkey.
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13
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Dinçer E, Brinkmann A, Hekimoğlu O, Hacıoğlu S, Földes K, Karapınar Z, Polat PF, Oğuz B, Orunç Kılınç Ö, Hagedorn P, Özer N, Özkul A, Nitsche A, Ergünay K. Generic amplification and next generation sequencing reveal Crimean-Congo hemorrhagic fever virus AP92-like strain and distinct tick phleboviruses in Anatolia, Turkey. Parasit Vectors 2017; 10:335. [PMID: 28705183 PMCID: PMC5513282 DOI: 10.1186/s13071-017-2279-1] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Accepted: 07/06/2017] [Indexed: 01/31/2023] Open
Abstract
Background Ticks are involved with the transmission of several viruses with significant health impact. As incidences of tick-borne viral infections are rising, several novel and divergent tick- associated viruses have recently been documented to exist and circulate worldwide. This study was performed as a cross-sectional screening for all major tick-borne viruses in several regions in Turkey. Next generation sequencing (NGS) was employed for virus genome characterization. Ticks were collected at 43 locations in 14 provinces across the Aegean, Thrace, Mediterranean, Black Sea, central, southern and eastern regions of Anatolia during 2014–2016. Following morphological identification, ticks were pooled and analysed via generic nucleic acid amplification of the viruses belonging to the genera Flavivirus, Nairovirus and Phlebovirus of the families Flaviviridae and Bunyaviridae, followed by sequencing and NGS in selected specimens. Results A total of 814 specimens, comprising 13 tick species, were collected and evaluated in 187 pools. Nairovirus and phlebovirus assays were positive in 6 (3.2%) and 48 (25.6%) pools. All nairovirus sequences were closely-related to the Crimean-Congo hemorrhagic fever virus (CCHFV) strain AP92 and formed a phylogenetically distinct cluster among related strains. Major portions of the CCHFV genomic segments were obtained via NGS. Phlebovirus sequencing revealed several tick-associated virus clades, including previously-characterized Antigone, Lesvos, KarMa and Bole tick viruses, as well as a novel clade. A wider host range for tick-associated virus strains has been observed. NGS provided near-complete sequences of the L genomic segments of Antigone and KarMa clades, as well as Antigone partial S segment. Co- infections of CCHFV and KarMa or novel phlebovirus clades were detected in 2.1% of the specimens. Conclusions Widespread circulation of various tick-associated phlebovirus clades were documented for the first time in Anatolia. Genomes of CCHFV AP92 strains were identified in previously unexplored locations. NGS provided the most detailed genomic characterization of the Antigone and KarMa viruses to date. The epidemiological and health-related consequences must be elucidated. Electronic supplementary material The online version of this article (doi:10.1186/s13071-017-2279-1) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Ender Dinçer
- Mersin University, Advanced Technology Education, Research and Application Center, 33110, Mersin, Turkey
| | - Annika Brinkmann
- Robert Koch Institute; Center for Biological Threats and Special Pathogens 1 (ZBS-1), 13353, Berlin, Germany
| | - Olcay Hekimoğlu
- Faculty of Science, Department of Biology, Division of Ecology, Hacettepe University, 06800, Ankara, Turkey
| | - Sabri Hacıoğlu
- Faculty of Veterinary Medicine, Department of Virology, Ankara University, 06110, Ankara, Turkey
| | - Katalin Földes
- Faculty of Veterinary Medicine, Department of Virology, Ankara University, 06110, Ankara, Turkey
| | - Zeynep Karapınar
- Faculty of Veterinary Medicine, Department of Virology, Yuzuncu Yil University, 65080, Van, Turkey
| | - Pelin Fatoş Polat
- Faculty of Veterinary Medicine, Department of Internal Medicine, Harran University, 63200,, Sanlıurfa, Turkey
| | - Bekir Oğuz
- Faculty of Veterinary Medicine, Department of Virology, Yuzuncu Yil University, 65080, Van, Turkey
| | | | - Peter Hagedorn
- Robert Koch Institute; Center for Biological Threats and Special Pathogens 1 (ZBS-1), 13353, Berlin, Germany
| | - Nurdan Özer
- Faculty of Science, Department of Biology, Division of Ecology, Hacettepe University, 06800, Ankara, Turkey
| | - Aykut Özkul
- Faculty of Veterinary Medicine, Department of Virology, Ankara University, 06110, Ankara, Turkey
| | - Andreas Nitsche
- Robert Koch Institute; Center for Biological Threats and Special Pathogens 1 (ZBS-1), 13353, Berlin, Germany
| | - Koray Ergünay
- Robert Koch Institute; Center for Biological Threats and Special Pathogens 1 (ZBS-1), 13353, Berlin, Germany. .,Faculty of Medicine, Department of Medical Microbiology, Virology Unit, Hacettepe University, 06100, Ankara, Turkey.
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15
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Differential Antagonism of Human Innate Immune Responses by Tick-Borne Phlebovirus Nonstructural Proteins. mSphere 2017; 2:mSphere00234-17. [PMID: 28680969 PMCID: PMC5489658 DOI: 10.1128/msphere.00234-17] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Accepted: 06/05/2017] [Indexed: 12/24/2022] Open
Abstract
In recent years, several newly discovered tick-borne viruses causing a wide spectrum of diseases in humans have been ascribed to the Phlebovirus genus of the Bunyaviridae family. The nonstructural protein (NSs) of bunyaviruses is the main virulence factor and interferon (IFN) antagonist. We studied the molecular mechanisms of IFN antagonism employed by the NSs proteins of human apathogenic Uukuniemi virus (UUKV) and those of Heartland virus (HRTV) and severe fever with thrombocytopenia syndrome virus (SFTSV), both of which cause severe disease. Using reporter assays, we found that UUKV NSs weakly inhibited the activation of the beta interferon (IFN-β) promoter and response elements. UUKV NSs weakly antagonized human IFN-β promoter activation through a novel interaction with mitochondrial antiviral-signaling protein (MAVS), confirmed by coimmunoprecipitation and confocal microscopy studies. HRTV NSs efficiently antagonized both IFN-β promoter activation and type I IFN signaling pathways through interactions with TBK1, preventing its phosphorylation. HRTV NSs exhibited diffused cytoplasmic localization. This is in comparison to the inclusion bodies formed by SFTSV NSs. HRTV NSs also efficiently interacted with STAT2 and impaired IFN-β-induced phosphorylation but did not affect STAT1 or its translocation to the nucleus. Our results suggest that a weak interaction between STAT1 and HRTV or SFTSV NSs may explain their inability to block type II IFN signaling efficiently, thus enabling the activation of proinflammatory responses that lead to severe disease. Our findings offer insights into how pathogenicity may be linked to the capacity of NSs proteins to block the innate immune system and illustrate the plethora of viral immune evasion strategies utilized by emerging phleboviruses. IMPORTANCE Since 2011, there has been a large expansion in the number of emerging tick-borne viruses that have been assigned to the Phlebovirus genus. Heartland virus (HRTV) and SFTS virus (SFTSV) were found to cause severe disease in humans, unlike other documented tick-borne phleboviruses such as Uukuniemi virus (UUKV). Phleboviruses encode nonstructural proteins (NSs) that enable them to counteract the human innate antiviral defenses. We assessed how these proteins interacted with the innate immune system. We found that UUKV NSs engaged with innate immune factors only weakly, at one early step. However, the viruses that cause more severe disease efficiently disabled the antiviral response by targeting multiple components at several stages across the innate immune induction and signaling pathways. Our results suggest a correlation between the efficiency of the virus protein/host interaction and severity of disease.
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16
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Kobayashi D, Ohashi M, Osei JHN, Agbosu E, Opoku M, Agbekudzi A, Joannides J, Fujita R, Sasaki T, Bonney JHK, Dadzie S, Isawa H, Sawabe K, Ohta N. Detection of a novel putative phlebovirus and first isolation of Dugbe virus from ticks in Accra, Ghana. Ticks Tick Borne Dis 2017; 8:640-645. [PMID: 28479064 DOI: 10.1016/j.ttbdis.2017.04.010] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Revised: 03/07/2017] [Accepted: 04/14/2017] [Indexed: 11/29/2022]
Abstract
Ticks are ectoparasites that transmit various types of human and animal pathogens. In particular, emerging and re-emerging diseases caused by tick-borne viruses are public health concerns around the world. However, in many countries of the sub-Saharan African region, epidemiological information on tick-borne viral infections is limited, and their prevalence and distribution remain largely unknown. In this study, we conducted surveillance on ticks to detect medically important tick-borne bunyaviruses in three study sites in and near to Accra, the capital city of Ghana, in 2015. Domestic dogs and cattle were surveyed and were found to be infested with various tick species belonging to the genera Rhipicephalus, Amblyomma and Haemaphysalis. Importantly, we detected a novel putative phlebovirus in Rhipicephalus ticks, and successfully isolated a new strain of Dugbe virus from Am. variegatum ticks. To our knowledge, this is the first report of tick-associated viruses in Ghana other than Crimean-Congo hemorrhagic fever virus.
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Affiliation(s)
- Daisuke Kobayashi
- Department of Environmental Parasitology, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-0034, Japan; Department of Medical Entomology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Mitsuko Ohashi
- Department of Environmental Parasitology, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-0034, Japan
| | - Joseph H N Osei
- Department of Parasitology, Noguchi Memorial Institute for Medical Research, University of Ghana, P.O. Box LG 581, Legon, Accra, Ghana
| | - Esinam Agbosu
- Department of Virology, Noguchi Memorial Institute for Medical Research, University of Ghana, P.O. Box LG 581, Legon, Accra, Ghana
| | - Millicent Opoku
- Department of Parasitology, Noguchi Memorial Institute for Medical Research, University of Ghana, P.O. Box LG 581, Legon, Accra, Ghana
| | - Alfred Agbekudzi
- Department of Parasitology, Noguchi Memorial Institute for Medical Research, University of Ghana, P.O. Box LG 581, Legon, Accra, Ghana
| | - Joannitta Joannides
- Department of Parasitology, Noguchi Memorial Institute for Medical Research, University of Ghana, P.O. Box LG 581, Legon, Accra, Ghana
| | - Ryosuke Fujita
- Department of Medical Entomology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan; Japan Agency for Medical Research and Development, 1-7-1 Ote-machi, Chiyoda-ku, Tokyo 100-0004, Japan
| | - Toshinori Sasaki
- Department of Medical Entomology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - J H Kofi Bonney
- Department of Virology, Noguchi Memorial Institute for Medical Research, University of Ghana, P.O. Box LG 581, Legon, Accra, Ghana
| | - Samuel Dadzie
- Department of Parasitology, Noguchi Memorial Institute for Medical Research, University of Ghana, P.O. Box LG 581, Legon, Accra, Ghana
| | - Haruhiko Isawa
- Department of Medical Entomology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan.
| | - Kyoko Sawabe
- Department of Medical Entomology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Nobuo Ohta
- Department of Environmental Parasitology, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-0034, Japan
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17
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Papa A. Emerging arboviral human diseases in Southern Europe. J Med Virol 2017; 89:1315-1322. [PMID: 28252204 DOI: 10.1002/jmv.24803] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2017] [Accepted: 02/20/2017] [Indexed: 01/13/2023]
Abstract
Southern Europe is characterized by unique landscape and climate which attract tourists, but also arthropod vectors, some of them carrying pathogens. Among several arboviral diseases that emerged in the region during the last decade, West Nile fever accounted for high number of human cases and fatalities, while Crimean-Congo hemorrhagic fever expanded its geographic distribution, and is considered as a real threat for Europe. Viruses evolve rapidly and acquire mutations making themselves stronger and naive populations more vulnerable. In an effort to tackle efficiently the emerging arboviral diseases, preparedness and strategic surveillance are needed for the early detection of the pathogen and containment and mitigation of probable outbreaks. In this review, the main human arboviral diseases that emerged in Southern Europe are described.
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Affiliation(s)
- Anna Papa
- Department of Microbiology, Medical School, Aristotle University of Thessaloniki, Thessaloniki, Greece
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18
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Pereira A, Figueira L, Nunes M, Esteves A, Cotão AJ, Vieira ML, Maia C, Campino L, Parreira R. Multiple Phlebovirus (Bunyaviridae) genetic groups detected in Rhipicephalus , Hyalomma and Dermacentor ticks from southern Portugal. Ticks Tick Borne Dis 2017; 8:45-52. [DOI: 10.1016/j.ttbdis.2016.09.015] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Revised: 09/23/2016] [Accepted: 09/23/2016] [Indexed: 01/22/2023]
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19
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Papa A, Kontana A, Tsioka K, Saratsis A, Sotiraki S. Novel phlebovirus detected in Haemaphysalis parva ticks in a Greek island. Ticks Tick Borne Dis 2017; 8:157-160. [DOI: 10.1016/j.ttbdis.2016.10.012] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Revised: 10/17/2016] [Accepted: 10/25/2016] [Indexed: 11/25/2022]
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