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de Cock MP, Baede VO, Esser HJ, Fonville M, de Vries A, de Boer WF, Mehl C, Ulrich RG, Schares G, Hakze-van der Honing RW, van der Poel WHM, Sprong H, Maas M. T(r)icky Environments: Higher Prevalence of Tick-Borne Zoonotic Pathogens in Rodents from Natural Areas Compared with Urban Areas. Vector Borne Zoonotic Dis 2024. [PMID: 38853708 DOI: 10.1089/vbz.2023.0151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2024] Open
Abstract
Background: Urban areas are unique ecosystems with stark differences in species abundance and composition compared with natural ecosystems. These differences can affect pathogen transmission dynamics, thereby altering zoonotic pathogen prevalence and diversity. In this study, we screened small mammals from natural and urban areas in the Netherlands for up to 19 zoonotic pathogens, including viruses, bacteria, and protozoan parasites. Materials and Methods: In total, 578 small mammals were captured, including wood mice (Apodemus sylvaticus), bank voles (Myodes glareolus), yellow-necked mice (Apodemus flavicollis), house mice (Mus musculus), common voles (Microtus arvalis), and greater white-toothed shrews (Crocidura russula). We detected a wide variety of zoonotic pathogens in small mammals from both urban and natural areas. For a subset of these pathogens, in wood mice and bank voles, we then tested whether pathogen prevalence and diversity were associated with habitat type (i.e., natural versus urban), degree of greenness, and various host characteristics. Results: The prevalence of tick-borne zoonotic pathogens (Borrelia spp. and Neoehrlichia mikurensis) was significantly higher in wood mice from natural areas. In contrast, the prevalence of Bartonella spp. was higher in wood mice from urban areas, but this difference was not statistically significant. Pathogen diversity was higher in bank voles from natural habitats and increased with body weight for both rodent species, although this relationship depended on sex for bank voles. In addition, we detected methicillin-resistant Staphylococcus aureus, extended-spectrum beta-lactamase/AmpC-producing Escherichia coli, and lymphocytic choriomeningitis virus for the first time in rodents in the Netherlands. Discussion: The differences between natural and urban areas are likely related to differences in the abundance and diversity of arthropod vectors and vertebrate community composition. With increasing environmental encroachment and changes in urban land use (e.g., urban greening), it is important to better understand transmission dynamics of zoonotic pathogens in urban environments to reduce potential disease risks for public health.
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Affiliation(s)
- Marieke P de Cock
- National Institute for Public Health and the Environment, Bilthoven, The Netherlands
- Quantitative Veterinary Epidemiology, Wageningen University & Research, Wageningen, The Netherlands
| | - Valérie O Baede
- National Institute for Public Health and the Environment, Bilthoven, The Netherlands
| | - Helen J Esser
- Wildlife Ecology and Conservation Group, Wageningen University & Research, Wageningen, The Netherlands
| | - Manoj Fonville
- National Institute for Public Health and the Environment, Bilthoven, The Netherlands
| | - Ankje de Vries
- National Institute for Public Health and the Environment, Bilthoven, The Netherlands
| | - Willem F de Boer
- Wildlife Ecology and Conservation Group, Wageningen University & Research, Wageningen, The Netherlands
| | - Calvin Mehl
- Institute of Novel and Emerging Infectious Diseases, Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Greifswald-Insel Riems, Germany
- German Centre for Infection Research (DZIF), Partner Site Hamburg-Lübeck-Borstel-Riems, Hamburg, Germany
| | - Rainer G Ulrich
- Institute of Novel and Emerging Infectious Diseases, Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Greifswald-Insel Riems, Germany
- German Centre for Infection Research (DZIF), Partner Site Hamburg-Lübeck-Borstel-Riems, Hamburg, Germany
| | - Gereon Schares
- Institute of Epidemiology, Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Greifswald-Insel Riems, Germany
| | | | - Wim H M van der Poel
- Quantitative Veterinary Epidemiology, Wageningen University & Research, Wageningen, The Netherlands
- Wageningen Bioveterinary Research, Lelystad, The Netherlands
| | - Hein Sprong
- National Institute for Public Health and the Environment, Bilthoven, The Netherlands
| | - Miriam Maas
- National Institute for Public Health and the Environment, Bilthoven, The Netherlands
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Cowpox Viruses: A Zoo Full of Viral Diversity and Lurking Threats. Biomolecules 2023; 13:biom13020325. [PMID: 36830694 PMCID: PMC9953750 DOI: 10.3390/biom13020325] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2023] [Revised: 02/01/2023] [Accepted: 02/03/2023] [Indexed: 02/11/2023] Open
Abstract
Cowpox viruses (CPXVs) exhibit the broadest known host range among the Poxviridae family and have caused lethal outbreaks in various zoo animals and pets across 12 Eurasian countries, as well as an increasing number of human cases. Herein, we review the history of how the cowpox name has evolved since the 1700s up to modern times. Despite early documentation of the different properties of CPXV isolates, only modern genetic analyses and phylogenies have revealed the existence of multiple Orthopoxvirus species that are currently constrained under the CPXV designation. We further chronicle modern outbreaks in zoos, domesticated animals, and humans, and describe animal models of experimental CPXV infections and how these can help shaping CPXV species distinctions. We also describe the pathogenesis of modern CPXV infections in animals and humans, the geographic range of CPXVs, and discuss CPXV-host interactions at the molecular level and their effects on pathogenicity and host range. Finally, we discuss the potential threat of these viruses and the future of CPXV research to provide a comprehensive review of CPXVs.
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Genomic Sequencing and Phylogenomics of Cowpox Virus. Viruses 2022; 14:v14102134. [PMID: 36298689 PMCID: PMC9611595 DOI: 10.3390/v14102134] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 09/16/2022] [Accepted: 09/24/2022] [Indexed: 11/30/2022] Open
Abstract
Cowpox virus (CPXV; genus Orthopoxvirus; family Poxviridae) is the causative agent of cowpox, a self-limiting zoonotic infection. CPXV is endemic in Eurasia, and human CPXV infections are associated with exposure to infected animals. In the Fennoscandian region, five CPXVs isolated from cats and humans were collected and used in this study. We report the complete sequence of their genomes, which ranged in size from 220–222 kbp, containing between 215 and 219 open reading frames. The phylogenetic analysis of 87 orthopoxvirus strains, including the Fennoscandian CPXV isolates, confirmed the division of CPXV strains into at least five distinct major clusters (CPXV-like 1, CPXV-like 2, VACV-like, VARV-like and ECTV-Abatino-like) and can be further divided into eighteen sub-species based on the genetic and patristic distances. Bayesian time-scaled evolutionary history of CPXV was reconstructed employing concatenated 62 non-recombinant conserved genes of 55 CPXV. The CPXV evolution rate was calculated to be 1.65 × 10−5 substitution/site/year. Our findings confirmed that CPXV is not a single species but a polyphyletic assemblage of several species and thus, a reclassification is warranted.
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Diaz-Cánova D, Moens UL, Brinkmann A, Nitsche A, Okeke MI. Genomic Sequencing and Analysis of a Novel Human Cowpox Virus With Mosaic Sequences From North America and Old World Orthopoxvirus. Front Microbiol 2022; 13:868887. [PMID: 35592007 PMCID: PMC9112427 DOI: 10.3389/fmicb.2022.868887] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Accepted: 02/24/2022] [Indexed: 11/13/2022] Open
Abstract
Orthopoxviruses (OPXVs) not only infect their natural hosts, but some OPXVs can also cause disease in humans. Previously, we partially characterized an OPXV isolated from an 18-year-old male living in Northern Norway. Restriction enzyme analysis and partial genome sequencing characterized this virus as an atypical cowpox virus (CPXV), which we named CPXV-No-H2. In this study, we determined the complete genome sequence of CPXV-No-H2 using Illumina and Nanopore sequencing. Our results showed that the whole CPXV-No-H2 genome is 220,276 base pairs (bp) in length, with inverted terminal repeat regions of approximately 7 kbp, containing 217 predicted genes. Seventeen predicted CPXV-No-H2 proteins were most similar to OPXV proteins from the Old World, including Ectromelia virus (ECTV) and Vaccinia virus, and North America, Alaskapox virus (AKPV). CPXV-No-H2 has a mosaic genome with genes most similar to other OPXV genes, and seven potential recombination events were identified. The phylogenetic analysis showed that CPXV-No-H2 formed a separate clade with the German CPXV isolates CPXV_GerMygEK938_17 and CPXV_Ger2010_MKY, sharing 96.4 and 96.3% nucleotide identity, respectively, and this clade clustered closely with the ECTV-OPXV Abatino clade. CPXV-No-H2 is a mosaic virus that may have arisen out of several recombination events between OPXVs, and its phylogenetic clustering suggests that ECTV-Abatino-like cowpox viruses form a distinct, new clade of cowpox viruses.
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Affiliation(s)
- Diana Diaz-Cánova
- Molecular Inflammation Research Group, Department of Medical Biology, UiT - The Arctic University of Norway, Tromsø, Norway
| | - Ugo L Moens
- Molecular Inflammation Research Group, Department of Medical Biology, UiT - The Arctic University of Norway, Tromsø, Norway
| | - Annika Brinkmann
- Highly Pathogenic Viruses, Centre for Biological Threats and Special Pathogens, WHO Reference Laboratory for SARS-CoV-2 and WHO Collaborating Centre for Emerging Infections and Biological Threats, Robert Koch Institute, Berlin, Germany
| | - Andreas Nitsche
- Highly Pathogenic Viruses, Centre for Biological Threats and Special Pathogens, WHO Reference Laboratory for SARS-CoV-2 and WHO Collaborating Centre for Emerging Infections and Biological Threats, Robert Koch Institute, Berlin, Germany
| | - Malachy Ifeanyi Okeke
- Section of Biomedical Sciences, Department of Natural and Environmental Sciences, School of Arts and Sciences, American University of Nigeria, Yola, Nigeria
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Serological Evidence of Multiple Zoonotic Viral Infections among Wild Rodents in Barbados. Pathogens 2021; 10:pathogens10060663. [PMID: 34071689 PMCID: PMC8229225 DOI: 10.3390/pathogens10060663] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 05/20/2021] [Accepted: 05/21/2021] [Indexed: 11/30/2022] Open
Abstract
Background: Rodents are reservoirs for several zoonotic pathogens that can cause human infectious diseases, including orthohantaviruses, mammarenaviruses and orthopoxviruses. Evidence exists for these viruses circulating among rodents and causing human infections in the Americas, but much less evidence exists for their presence in wild rodents in the Caribbean. Methods: Here, we conducted serological and molecular investigations of wild rodents in Barbados to determine the prevalence of orthohantavirus, mammarenavirus and orthopoxvirus infections, and the possible role of these rodent species as reservoirs of zoonotic pathogens. Using immunofluorescent assays (IFA), rodent sera were screened for the presence of antibodies to orthohantavirus, mammarenavirus (Lymphocytic choriomeningitis virus—LCMV) and orthopoxvirus (Cowpox virus—CPXV) infections. RT-PCR was then conducted on orthohantavirus and mammarenavirus-seropositive rodent sera and tissues, to detect the presence of viral RNA. Results: We identified antibodies against orthohantavirus, mammarenavirus, and orthopoxvirus among wild mice and rats (3.8%, 2.5% and 7.5% seropositivity rates respectively) in Barbados. No orthohantavirus or mammarenavirus viral RNA was detected from seropositive rodent sera or tissues using RT–PCR. Conclusions: Key findings of this study are the first serological evidence of orthohantavirus infections in Mus musculus and the first serological evidence of mammarenavirus and orthopoxvirus infections in Rattus norvegicus and M. musculus in the English-speaking Caribbean. Rodents may present a potential zoonotic and biosecurity risk for transmission of three human pathogens, namely orthohantaviruses, mammarenaviruses and orthopoxviruses in Barbados.
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Vilibic-Cavlek T, Savic V, Ferenc T, Mrzljak A, Barbic L, Bogdanic M, Stevanovic V, Tabain I, Ferencak I, Zidovec-Lepej S. Lymphocytic Choriomeningitis-Emerging Trends of a Neglected Virus: A Narrative Review. Trop Med Infect Dis 2021; 6:tropicalmed6020088. [PMID: 34070581 PMCID: PMC8163193 DOI: 10.3390/tropicalmed6020088] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 05/18/2021] [Accepted: 05/24/2021] [Indexed: 02/07/2023] Open
Abstract
Lymphocytic choriomeningitis virus (LCMV) is a neglected rodent-borne zoonotic virus distributed worldwide. Since serologic assays are limited to several laboratories, the disease has been underreported, often making it difficult to determine incidence and seroprevalence rates. Although human clinical cases are rarely recorded, LCMV remains an important cause of meningitis in humans. In addition, a fatal donor-derived LCMV infection in several clusters of solid organ transplant recipients further highlighted a pathogenic potential and clinical significance of this virus. In the transplant populations, abnormalities of the central nervous system were also found, but were overshadowed by the systemic illness resembling the Lassa hemorrhagic fever. LCMV is also an emerging fetal teratogen. Hydrocephalus, periventricular calcifications and chorioretinitis are the predominant characteristics of congenital LCMV infection, occurring in 87.5% of cases. Mortality in congenitally infected children is about 35%, while 70% of them show long-term neurologic sequelae. Clinicians should be aware of the risks posed by LCMV and should consider the virus in the differential diagnosis of aseptic meningitis, especially in patients who reported contact with rodents. Furthermore, LCMV should be considered in infants and children with unexplained hydrocephalus, intracerebral calcifications and chorioretinitis. Despite intensive interdisciplinary research efforts, efficient antiviral therapy for LCMV infection is still not available.
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Affiliation(s)
- Tatjana Vilibic-Cavlek
- Department of Virology, Croatian Institute of Public Health, 10000 Zagreb, Croatia; (M.B.); (I.T.); (I.F.)
- School of Medicine, University of Zagreb, 10000 Zagreb, Croatia;
- Correspondence: ; Tel.: +385-1-4863-238
| | - Vladimir Savic
- Laboratory for Virology and Serology, Poultry Center, Croatian Veterinary Institute, 10000 Zagreb, Croatia;
| | - Thomas Ferenc
- Clinical Department of Diagnostic and Interventional Radiology, Merkur University Hospital, 10000 Zagreb, Croatia;
| | - Anna Mrzljak
- School of Medicine, University of Zagreb, 10000 Zagreb, Croatia;
- Department of Gastroenterology and Hepatology, Clinical Hospital Center Zagreb, 10000 Zagreb, Croatia
| | - Ljubo Barbic
- Department of Microbiology and Infectious Diseases with Clinic, Faculty of Veterinary Medicine, University of Zagreb, 10000 Zagreb, Croatia; (L.B.); (V.S.)
| | - Maja Bogdanic
- Department of Virology, Croatian Institute of Public Health, 10000 Zagreb, Croatia; (M.B.); (I.T.); (I.F.)
| | - Vladimir Stevanovic
- Department of Microbiology and Infectious Diseases with Clinic, Faculty of Veterinary Medicine, University of Zagreb, 10000 Zagreb, Croatia; (L.B.); (V.S.)
| | - Irena Tabain
- Department of Virology, Croatian Institute of Public Health, 10000 Zagreb, Croatia; (M.B.); (I.T.); (I.F.)
| | - Ivana Ferencak
- Department of Virology, Croatian Institute of Public Health, 10000 Zagreb, Croatia; (M.B.); (I.T.); (I.F.)
| | - Snjezana Zidovec-Lepej
- Department of Immunological and Molecular Diagnostics, University Hospital for Infectious Diseases “Dr Fran Mihaljevic”, 10000 Zagreb, Croatia;
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Grzybek M, Tołkacz K, Sironen T, Mäki S, Alsarraf M, Behnke-Borowczyk J, Biernat B, Nowicka J, Vaheri A, Henttonen H, Behnke JM, Bajer A. Zoonotic Viruses in Three Species of Voles from Poland. Animals (Basel) 2020; 10:ani10101820. [PMID: 33036253 PMCID: PMC7599905 DOI: 10.3390/ani10101820] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 09/23/2020] [Accepted: 09/28/2020] [Indexed: 11/16/2022] Open
Abstract
Simple Summary Wild rodents constitute a significant threat to public health. We tested 77 voles from northeastern Poland for the presence of antibodies to hantaviruses, arenaviruses and cowpox viruses. We report 18.2% overall seroprevalence of zoonotic viruses. Our results contribute to knowledge about the role of Polish voles as possible reservoirs of viral infections. Abstract Rodents are known to be reservoir hosts for a plethora of zoonotic viruses and therefore play a significant role in the dissemination of these pathogens. We trapped three vole species (Microtus arvalis, Alexandromys oeconomus and Microtus agrestis) in northeastern Poland, all of which are widely distributed species in Europe. Using immunofluorescence assays, we assessed serum samples for the presence of antibodies to hantaviruses, arenaviruses and cowpox viruses (CPXV). We detected antibodies against CPXV and Puumala hantavirus (PUUV), the overall seroprevalence of combined viral infections being 18.2% [10.5–29.3] and mostly attributed to CPXV. We detected only one PUUV/TULV cross-reaction in Microtus arvalis (1.3% [0.1–7.9]), but found similar levels of antibodies against CPXV in all three vole species. There were no significant differences in seroprevalence of CPXV among host species and age categories, nor between the sexes. These results contribute to our understanding of the distribution and abundance of CPXV in voles in Europe, and confirm that CPXV circulates also in Microtus and Alexandromys voles in northeastern Poland.
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Affiliation(s)
- Maciej Grzybek
- Department of Tropical Parasitology, Institute of Maritime and Tropical Medicine, Medical University of Gdansk, Powstania Styczniowego 9B, 81-519 Gdynia, Poland; (B.B.); (J.N.)
- Correspondence: ; Tel.: +48-58-3491941
| | - Katarzyna Tołkacz
- Department of Eco-Epidemiology for Parasitic Diseases, Faculty of Biology, University of Warsaw, 1 Miecznikowa Str, 02-096 Warsaw, Poland; (K.T.); (M.A.); (A.B.)
- Department of Antarctic Biology, Institute of Biochemistry and Biophysics, Polish Academy of Sciences, 5A Pawińskiego Str, 02-106 Warsaw, Poland
| | - Tarja Sironen
- Department of Virology, University of Helsinki, Haartmaninkatu 3, 00014 Helsinki, Finland; (T.S.); (S.M.); (A.V.)
| | - Sanna Mäki
- Department of Virology, University of Helsinki, Haartmaninkatu 3, 00014 Helsinki, Finland; (T.S.); (S.M.); (A.V.)
| | - Mohammed Alsarraf
- Department of Eco-Epidemiology for Parasitic Diseases, Faculty of Biology, University of Warsaw, 1 Miecznikowa Str, 02-096 Warsaw, Poland; (K.T.); (M.A.); (A.B.)
| | - Jolanta Behnke-Borowczyk
- Department of Forest Pathology, Poznan University of Life Sciences, Wojska Polskiego 71c, 60-625 Poznan, Poland;
| | - Beata Biernat
- Department of Tropical Parasitology, Institute of Maritime and Tropical Medicine, Medical University of Gdansk, Powstania Styczniowego 9B, 81-519 Gdynia, Poland; (B.B.); (J.N.)
| | - Joanna Nowicka
- Department of Tropical Parasitology, Institute of Maritime and Tropical Medicine, Medical University of Gdansk, Powstania Styczniowego 9B, 81-519 Gdynia, Poland; (B.B.); (J.N.)
| | - Antti Vaheri
- Department of Virology, University of Helsinki, Haartmaninkatu 3, 00014 Helsinki, Finland; (T.S.); (S.M.); (A.V.)
| | - Heikki Henttonen
- Natural Resources Institute Finland, Latokartanonkaari 9, 00790 Helsinki, Finland;
| | - Jerzy M. Behnke
- School of Life Sciences, University of Nottingham, University Park, Nottingham NG7 2RD, UK;
| | - Anna Bajer
- Department of Eco-Epidemiology for Parasitic Diseases, Faculty of Biology, University of Warsaw, 1 Miecznikowa Str, 02-096 Warsaw, Poland; (K.T.); (M.A.); (A.B.)
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Polat C, Ergin Ç, Akkaya Y, Ali Oktem IM. Investigation of Orthohantavirus Seroprevalence in Northern Rural Areas of Denizli Province, Turkey. Jpn J Infect Dis 2020; 73:201-204. [PMID: 31875606 DOI: 10.7883/yoken.jjid.2019.330] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Orthohantaviruses infect humans via inhalation of the viral particles in the excreta of infected rodents or direct contact with infected rodents. The infections caused by Puumala orthohantavirus (PUUV) and Dobrava-Belgrade orthohantavirus (DOBV) have been reported in Turkey. Serum samples of 346 healthy volunteers who are in the high-risk group of Orthohantavirus infections among the residents of Çal, Baklan, Çivril, and Bekilli counties, located in the northeast part of Denizli province, were used in this study. The samples were screened and confirmed using commercial ELISA and immunoblot tests, which detect IgG antibodies against DOBV, PUUV, and Hantaan orthohantavirus. IgG antibodies against PUUV were detected in the samples of 2 volunteers (2/346, 0.6%). One was a veterinarian and the other a farmer and they live in the Baklan and Çal counties, respectively. Both of them have a high probability of exposure to the virus, based on their occupation and living conditions. However, no symptoms were found in the clinical findings of both cases. This study is the first publication of reported PUUV seropositivities from the southwestern part of Turkey.
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Affiliation(s)
- Ceylan Polat
- Department of Medical Microbiology, Faculty of Medicine, Dokuz Eylul University
| | - Çağrı Ergin
- Department of Medical Microbiology, Faculty of Medicine, Pamukkale University
| | - Yüksel Akkaya
- Public Health Laboratory, Denizli Public Health Directorate, Republic of Turkey Ministry of Health
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Çelebi G, Öztoprak N, Öktem İMA, Heyman P, Lundkvist Å, Wahlström M, Köktürk F, Pişkin N. Dynamics of Puumala hantavirus outbreak in Black Sea Region, Turkey. Zoonoses Public Health 2019; 66:783-797. [PMID: 31293096 DOI: 10.1111/zph.12625] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2019] [Revised: 05/15/2019] [Accepted: 06/12/2019] [Indexed: 01/01/2023]
Abstract
BACKGROUND Some of the hantavirus species in Euro-Asia cause haemorrhagic fever with renal syndrome (HFRS) in humans. The first documented human hantavirus infection in Turkey was diagnosed in 2009. This report describes the dynamics of the first hantavirus outbreak that emerged in humans in the Western Black Sea Region of Turkey. METHODS All the suspected cases of hantavirus infection were admitted to the Infectious Diseases and Clinical Microbiology Department at the Zonguldak Bülent Ecevit University Hospital in Zonguldak, Turkey. The patients were carefully interviewed, examined and evaluated using routine laboratory tests and hantavirus diagnostic tools. Hantavirus-reactive antibodies (IgM and IgG) in serum samples were detected via enzyme immune assay (EIA) and immunofluorescence assay (IFA) in the acute and convalescence stages of the disease. The presence of hantavirus ribonucleic acid (RNA) was analysed via reverse transcription polymerase chain reaction (RT-PCR) in serum and urine samples. A focus reduction neutralization test (FRNT) was performed to confirm specific hantavirus serotypes. In addition, a case-control study was conducted to identify possible risk factors for hantavirus transmission in the outbreak area. A control group was composed of asymptomatic individuals who were seronegative for hantavirus IgM and IgG and living in the outbreak area. RESULTS A total of 55 suspected cases of hantavirus infection were admitted to the inpatient clinic between February and June of 2009. Twenty-four patients were diagnosed with acute HFRS via EIA or IFA. In 22 of the 24 infected patients, Puumala virus (PUUV) was identified as the causative hantavirus type by detecting IgM in the acute stage and an increase in the IgG level in follow-up serum samples. PUUV was also verified as the infecting agent by FRNT in two of the 24 cases. Among the 24 laboratory-confirmed HFRS cases, 21 (87.5%) were males and 3 (12.5%) were females, and the mean age was 45.92 years (standard deviation ± 16.90 years). Almost all these individuals were living in villages or rural areas. The 24 HFRS cases were matched with 26 healthy controls for statistical analyses and according to binary logistic regression analysis, and dealing with rodent control activities in gardens or in annexes of their homes (p = 0.021 and Odds ratio [OR] = 17.11) and being male (p = 0.019 and OR = 22.37) were detected as statistically significant risk factors for hantavirus infection. The most commonly observed clinical complaints were fatigue (95.8%), shivering (91.7%), fever (87.1%), headache (70.8%) and nausea (70.8%). Haemodialysis was required for four patients (16.7%). Except for the first case diagnosed with acute hantavirus infection, no patient died. The mean delay time to hospital admission from initiation of symptoms was 5.3 days, the mean duration of febrile days was 2.6 days, and the mean duration of hospital stay was 8.5 days. CONCLUSION Hantaviruses are circulating in Turkey and causing sporadic or epidemic infection in humans. Additional investigations are needed to better understand the dynamics of hantaviruses in this country.
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Affiliation(s)
- Güven Çelebi
- Department of Infectious Diseases and Clinical Microbiology, Medical Faculty, Zonguldak Bülent Ecevit University, Zonguldak, Turkey
| | - Nefise Öztoprak
- Department of Infectious Diseases and Clinical Microbiology, Antalya Educational and Research Hospital, Antalya, Turkey
| | | | - Paul Heyman
- Research Laboratory for Vector-Borne Diseases and Reference Laboratory for Vector-Borne Diseases, Queen Astrid Military Hospital, Brussels, Belgium
| | - Åke Lundkvist
- Department of Medical Biochemistry and Microbiology, Zoonosus Science Center, Uppsala University, Uppsala, Sweden
| | - Maria Wahlström
- Department of Medical Biochemistry and Microbiology, Zoonosus Science Center, Uppsala University, Uppsala, Sweden
| | - Fürüzan Köktürk
- Department of Biostatistics, Medical Faculty, Zonguldak Bülent Ecevit University, Zonguldak, Turkey
| | - Nihal Pişkin
- Department of Infectious Diseases and Clinical Microbiology, Medical Faculty, Zonguldak Bülent Ecevit University, Zonguldak, Turkey
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Lapa D, Beltrame A, Arzese A, Carletti F, Di Caro A, Ippolito G, Capobianchi MR, Castilletti C. Orthopoxvirus Seroprevalence in Cats and Veterinary Personnel in North-Eastern Italy in 2011. Viruses 2019; 11:v11020101. [PMID: 30691058 PMCID: PMC6409756 DOI: 10.3390/v11020101] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Revised: 01/19/2019] [Accepted: 01/22/2019] [Indexed: 11/19/2022] Open
Abstract
Orthopoxviruses (OPV) are emerging zoonotic pathogens, and an increasing number of human infections is currently reported in Europe and in other continents, warranting heightened attention on this topic. Following two OPV infections reported in veterinarians scratched by sick cats in 2005 and 2007 in North-Eastern-Italy, involving a previously undescribed OPV, a similar strain was isolated by a sick cat from the same territory in 2011, i.e., 6 years later, raising attention on OPV circulation in this region. A surveillance program was launched to assess the OPV seroprevalence among the veterinarians working in local veterinary clinics and in the local wild and domestic cat population; seroprevalence was 33.3% in veterinarians and 19.5% in cats. Seroprevalence in cats was unevenly distributed, peaking at 40% in the area where OPV-infected cats had been observed.
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Affiliation(s)
- Daniele Lapa
- National Institute for Infectious Diseases Lazzaro Spallanzani, 00149 Rome, Italy.
| | - Anna Beltrame
- IRCCS Sacro Cuore Don Calabria Hospital, 37024 Negrar VR, Italy.
| | - Alessandra Arzese
- Medical Department (DAME), University of Udine, 33100 Udine, Italy.
- Microbiology Laboratory Unit, Azienda Sanitaria Universitaria Integrata, Santa Maria della Misericordia University Hospital, 33100 Udine, Italy.
| | - Fabrizio Carletti
- National Institute for Infectious Diseases Lazzaro Spallanzani, 00149 Rome, Italy.
| | - Antonino Di Caro
- National Institute for Infectious Diseases Lazzaro Spallanzani, 00149 Rome, Italy.
| | - Giuseppe Ippolito
- National Institute for Infectious Diseases Lazzaro Spallanzani, 00149 Rome, Italy.
| | | | - Concetta Castilletti
- National Institute for Infectious Diseases Lazzaro Spallanzani, 00149 Rome, Italy.
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11
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Polat C, Ergünay K, Irmak S, Erdin M, Brinkmann A, Çetintaş O, Çoğal M, Sözen M, Matur F, Nitsche A, Öktem İMA. A novel genetic lineage of Tula orthohantavirus in Altai voles (Microtus obscurus) from Turkey. INFECTION GENETICS AND EVOLUTION 2018; 67:150-158. [PMID: 30465911 DOI: 10.1016/j.meegid.2018.11.015] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Revised: 11/16/2018] [Accepted: 11/16/2018] [Indexed: 01/10/2023]
Abstract
Orthohantaviruses (family Hantaviridae order Bunyavirales) are emerging pathogens with a significant impact on human health. They are transmitted via aerosolized excreta of rodents which also act as reservoir hosts, constituting a unique route for dispersion. Dobrava-Belgrade and Puumala orthohantaviruses have been previously reported from Anatolia, in rodents, case reports and occasional outbreaks. We have collected rodents at several locations during a surveillance study in eastern Anatolia. The specimens were morphologically-identified and various tissues were screened via a generic orthohantavirus reverse transcription polymerase chain reaction assay. DNA barcoding via mitochondrial cytochrome b sequencing was performed in rodents with detectable orthohantavirus sequences. High throughput sequencing was performed for viral genome characterization. Fifty rodents were collected and identified morphologically as Microtus spp. (96%) and Apodemus spp. (4%). Orthohantavirus sequences were detected in lung and spleen or liver tissues of 4 voles (8%), barcoded as Microtus obscurus. The virus sequences were identified as Tula orthohantavirus (TULV) and near-complete genomic segments of the prototype viral genome, tentatively named as the Tula orthohantavirus-Turkey (TULV-T), could be characterized. Putative open reading frames for viral nucleocapsid and a nonstructural protein on the S segment, glycoproteins G1 and G2 on the M segment and viral replicase on the L segment were identified on the TULV-T. Several minor sequence variants were further characterized. No evidence of recombination could be detected and pairwise comparisons displayed over 95% amino acid sequence identities to various Eurasian TULV strains. Phylogenetic analyses revealed distinct clustering of all genome segments from previously-characterized TULV strains via various approaches and models. Here, TULV-T constituted a novel lineage, forming an intermediate among Asian and European TULV lineages. This report describes the initial documentation of TULV circulation and its potential reservoir in Anatolia. The extent of virus dispersion, alternate hosts or outcomes of human exposure require elucidation.
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Affiliation(s)
- Ceylan Polat
- Dokuz Eylul University, Faculty of Medicine, Department of Medical Microbiology, 35340 Izmir, Turkey
| | - Koray Ergünay
- Hacettepe University, Faculty of Sciences, Department of Biology, Division of Ecology, Ankara, Turkey.
| | - Sercan Irmak
- Balıkesir University, Science and Technology Application and Research Center, Balıkesir, Turkey
| | - Mert Erdin
- Dokuz Eylul University, Faculty of Medicine, Department of Medical Microbiology, 35340 Izmir, Turkey
| | - Annika Brinkmann
- Robert Koch Institute; Centre for Biological Threats and Special Pathogens 1 (ZBS 1), Berlin, Germany
| | - Ortaç Çetintaş
- Bülent Ecevit University, Faculty of Arts and Sciences, Department of Biology, Zonguldak, Turkey
| | - Muhsin Çoğal
- Bülent Ecevit University, Faculty of Arts and Sciences, Department of Biology, Zonguldak, Turkey
| | - Mustafa Sözen
- Bülent Ecevit University, Faculty of Arts and Sciences, Department of Biology, Zonguldak, Turkey
| | - Ferhat Matur
- Dokuz Eylul University, Faculty of Science, Department of Biology, Izmir, Turkey
| | - Andreas Nitsche
- Robert Koch Institute; Centre for Biological Threats and Special Pathogens 1 (ZBS 1), Berlin, Germany
| | - İbrahim Mehmet Ali Öktem
- Dokuz Eylul University, Faculty of Medicine, Department of Medical Microbiology, 35340 Izmir, Turkey
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12
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Rabiee MH, Mahmoudi A, Siahsarvie R, Kryštufek B, Mostafavi E. Rodent-borne diseases and their public health importance in Iran. PLoS Negl Trop Dis 2018; 12:e0006256. [PMID: 29672510 PMCID: PMC5908068 DOI: 10.1371/journal.pntd.0006256] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Background Rodents are reservoirs and hosts for several zoonotic diseases such as plague, leptospirosis, and leishmaniasis. Rapid development of industry and agriculture, as well as climate change throughout the globe, has led to change or increase in occurrence of rodent-borne diseases. Considering the distribution of rodents throughout Iran, the aim of this review is to assess the risk of rodent-borne diseases in Iran. Methodology/Principal finding We searched Google Scholar, PubMed, Science Direct, Scientific Information Database (SID), and Magiran databases up to September 2016 to obtain articles reporting occurrence of rodent-borne diseases in Iran and extract information from them. Out of 70 known rodent-borne diseases, 34 were reported in Iran: 17 (50%) parasitic diseases, 13 (38%) bacterial diseases, and 4 (12%) viral diseases. Twenty-one out of 34 diseases were reported from both humans and rodents. Among the diseases reported in the rodents of Iran, plague, leishmaniasis, and hymenolepiasis were the most frequent. The most infected rodents were Rattus norvegicus (16 diseases), Mus musculus (14 diseases), Rattus rattus (13 diseases), Meriones persicus (7 diseases), Apodemus spp. (5 diseases), Tatera indica (4 diseases), Meriones libycus (3 diseases), Rhombomys opimus (3 diseases), Cricetulus migratorius (3 diseases), and Nesokia indica (2 diseases). Conclusions/Significance The results of this review indicate the importance of rodent-borne diseases in Iran. Considering notable diversity of rodents and their extensive distribution throughout the country, it is crucial to pay more attention to their role in spreading infectious diseases for better control of the diseases. This review showed that approximately half of the known rodent-borne diseases have been reported in Iran, half of which were reported both in humans and rodents. Most of the diseases were bacterial and parasitic. Plague, leishmaniasis, and hymenolepiasis were the most frequent diseases among rodent populations. Also, this review showed that among the rodent species, three commensal ones—R. norvegicus, M. musculus, and R. rattus—play an important role in the transmission of diseases to humans in Iran. Considering repeated reports of many of these diseases in humans and rodents, and the notable diversity and extensive distribution of rodents throughout Iran, it is crucial to pay adequate attention to rodents as a source of zoonotic infectious diseases in the country.
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Affiliation(s)
- Mohammad Hasan Rabiee
- Department of Epidemiology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - Ahmad Mahmoudi
- Department of Epidemiology and Biostatistics, Research Centre for Emerging and Reemerging Infectious Diseases, Pasteur Institute of Iran, Tehran, Iran
- National Reference Laboratory for Plague, Tularemia and Q fever, Research Centre for Emerging and Reemerging Infectious Diseases, Pasteur Institute of Iran, Akanlu, Iran
| | - Roohollah Siahsarvie
- Department of Biology, Faculty of Sciences, Ferdowsi University of Mashhad, Mashhad, Iran
- Rodentology Research Department (RRD), Institute of Applied Animal (IAA), Ferdowsi University of Mashhad, Mashhad, Iran
| | | | - Ehsan Mostafavi
- Department of Epidemiology and Biostatistics, Research Centre for Emerging and Reemerging Infectious Diseases, Pasteur Institute of Iran, Tehran, Iran
- National Reference Laboratory for Plague, Tularemia and Q fever, Research Centre for Emerging and Reemerging Infectious Diseases, Pasteur Institute of Iran, Akanlu, Iran
- * E-mail:
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13
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Polat C, Sironen T, Plyusnina A, Karatas A, Sozen M, Matur F, Vapalahti O, Oktem IMA, Plyusnin A. Dobrava hantavirus variants found in
Apodemus flavicollis
mice in Kırklareli Province, Turkey. J Med Virol 2018; 90:810-818. [DOI: 10.1002/jmv.25036] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Accepted: 01/10/2018] [Indexed: 12/22/2022]
Affiliation(s)
- Ceylan Polat
- Department of Medical Microbiology, Medical SchoolDokuz Eylül UniversityIzmirTurkey
| | - Tarja Sironen
- Department of VirologyUniversity of HelsinkiHelsinkiFinland
| | | | - Ahmet Karatas
- Department of Biology, Faculty of Arts and SciencesÖmer Halisdemir UniversityNiğdeTurkey
| | - Mustafa Sozen
- Department of Biology, Faculty of Arts and SciencesBülent Ecevit UniversityZonguldakTurkey
| | - Ferhat Matur
- Department of Biology, Faculty of Arts and SciencesBülent Ecevit UniversityZonguldakTurkey
| | - Olli Vapalahti
- Department of VirologyUniversity of HelsinkiHelsinkiFinland
| | - I. Mehmet Ali Oktem
- Department of Medical Microbiology, Medical SchoolDokuz Eylül UniversityIzmirTurkey
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14
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Oktem IMA, Uyar Y, Dincer E, Gozalan A, Schlegel M, Babur C, Celebi B, Sozen M, Karatas A, Ozkazanc NK, Matur F, Korukluoglu G, Ulrich RG, Ertek M, Ozkul A. Dobrava-Belgrade virus in Apodemus flavicollis and A. uralensis mice, Turkey. Emerg Infect Dis 2014; 20:121-5. [PMID: 24377763 PMCID: PMC3887490 DOI: 10.3201/eid2001.121024] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
In 2009, human Dobrava-Belgrade virus (DOBV) infections were reported on the Black Sea coast of Turkey. Serologic and molecular studies of potential rodent reservoirs demonstrated DOBV infections in Apodemus flavicollis and A. uralensis mice. Phylogenetic analysis of DOBV strains showed their similarity to A. flavicollis mice–borne DOBV in Greece, Slovenia, and Slovakia.
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15
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Forbes KM, Voutilainen L, Jääskeläinen A, Sironen T, Kinnunen PM, Stuart P, Vapalahti O, Henttonen H, Huitu O. Serological survey of rodent-borne viruses in Finnish field voles. Vector Borne Zoonotic Dis 2014; 14:278-83. [PMID: 24689532 DOI: 10.1089/vbz.2013.1526] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
In northern Europe, rodent populations display cyclic density fluctuations that can be correlated with the human incidence of zoonotic diseases they spread. During density peaks, field voles (Microtus agrestis) become one of the most abundant rodent species in northern Europe, yet little is known of the viruses they host. We screened 709 field voles, trapped from 14 sites over 3 years, for antibodies against four rodent-borne, potentially zoonotic viruses or virus groups-hantaviruses, lymphocytic choriomeningitis virus (LCMV), Ljungan virus (LV), and orthopoxviruses (OPV). Antibodies against all four viruses were detected. However, seroprevalence of hantaviruses, LV, and LCMV was low. OPV antibodies (most likely cowpox) were more common but restricted geographically to southeastern Finland. Within these sites, antibody prevalence showed delayed density dependence in spring and direct density dependence in fall. Higher seroprevalence was found in spring than fall. These results substantially increase knowledge of the presence and distribution of viruses of field voles in Finland, as well as CPXV infection dynamics.
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Affiliation(s)
- Kristian M Forbes
- 1 Suonenjoki Research Unit, Finnish Forest Research Institute , Suonenjoki, Finland
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16
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Kaya S, Çağlayık DY, Uyar Y, Yılmaz H, Engin A, Öngürü P, Yılmaz G, Köksal I. Can hantavirus infections be predicted on admission to hospital? J Med Virol 2013; 84:1790-6. [PMID: 22997082 DOI: 10.1002/jmv.23390] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The aim of this study was to investigate the predictive factors which contribute to diagnosis of hantavirus infection. One hundred patients from rural areas hospitalized with a preliminary diagnosis of hantavirus infection from different hospitals in Turkey were investigated. Hantavirus infection was confirmed in 20 patients (Group 1) using immunofluorescence and immunoblot assays at the Refik Saydam National Public Health Agency. Hantaviruses were not detected in the serum of the remaining 80 patients, other infectious and non-infectious diseases being diagnosed in this group (Group 2). Patients' demographic characteristics and clinical and laboratory data on admission were examined and compared between the two groups. Fever, proteinuria, hematuria, lethargy-weakness, and nausea-vomiting were the most frequent symptoms and findings in Group 1, seen in almost all patients. Proteinuria, hematuria, muscle pain, diarrhea/abdominal pain, hypotension, shock, and sweating were observed at significantly higher levels in Group 1 compared to Group 2. Serum urea, creatinine, uric acid, lactate dehydrogenase (LDH), aspartate transaminase (AST), alkaline phosphatase (ALP), and C-reactive protein (CRP) were significantly higher, but serum platelet counts were lower in Group 1 patients. Area beneath the receiver operating characteristics (ROC) curve analysis was used to calculate the discriminative ability of various laboratory values to identify patients with hantavirus infection. This analysis revealed that, serum CRP had a 100% negative predictive value, whilst, platelet, and creatinine had 75% and 70% positive predictive values for the diagnosis of hantavirus infection. In summary, laboratory markers used in clinical practice are of great importance predicting hantavirus infections.
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Affiliation(s)
- Selçuk Kaya
- Department of Infectious Diseases and Clinical Microbiology, School of Medicine, Karadeniz Technical University, Trabzon, Turkey.
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17
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Gozalan A, Kalaycioglu H, Uyar Y, Sevindi DF, Turkyilmaz B, Çakir V, Cindemir C, Unal B, Yağçi-Çağlayik D, Korukluoglu G, Ertek M, Heyman P, Lundkvist Å. Human puumala and dobrava hantavirus infections in the Black Sea region of Turkey: a cross-sectional study. Vector Borne Zoonotic Dis 2013; 13:111-8. [PMID: 23289396 DOI: 10.1089/vbz.2011.0939] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
This study was carried out to better understand the epidemiology of hantaviruses in a province of Turkey (Giresun) where human hantavirus disease has recently been detected. In this cross-sectional study, a total of 626 blood samples from healthy people aged 15 and 84 years old were collected both in urban and rural areas in 2009. The sera were tested by enzyme-linked immunosorbent assay (ELISA), immunoblotting assay, and the focus reduction neutralization test (FRNT). We screened the samples by an ELISA and found that 65/626 samples reacted positively for the presence of hantavirus-reactive immunoglobulin G (IgG). Twenty of the 65 ELISA-positive samples could be confirmed by an immunobloting assay, and the overall seroprevalence was thereby calculated to 3.2% (20/626). The seroprevalence of the people living in wood areas or adobe houses 9/17 (52.9%) was significantly higher than among people living in concrete houses 10/47 (21.3%) (p=0.014). Finally, 3 of the 20 immunoblot-positive sera were confirmed as specific for the Puumala hantavirus serotype by FRNT, 1 serum was confirmed as Dobrava virus-specific, whereas 1 serum was found to be equally reactive to Dobrava and Saaremaa viruses. We will now focus on further investigations of the ecology and epidemiology of hantaviruses in humans and their carrier animals in Turkey, studies that have already been started and will be further intensified.
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18
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19
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Sarıgüzel N, Hofmann J, Canpolat AT, Türk A, Ettinger J, Atmaca D, Akyar I, Yücel S, Arıkan E, Uyar Y, Çağlayık DY, Kocagöz AS, Kaya A, Kruger DH. Dobrava hantavirus infection complicated by panhypopituitarism, Istanbul, Turkey, 2010. Emerg Infect Dis 2012; 18:1180-3. [PMID: 22709722 PMCID: PMC3376800 DOI: 10.3201/eid1807.111746] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
We identified Dobrava-Belgrade virus infection in Turkey (from a strain related to hantavirus strains from nearby countries) in a patient who had severe symptoms leading to panhypopituitarism, but no known risk for hantavirus. Our findings emphasize the need for increased awareness of hantaviruses in the region and assessment of symptomatic persons without known risk factors for infection.
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20
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Irwin NR, Bayerlová M, Missa O, Martínková N. Complex patterns of host switching in New World arenaviruses. Mol Ecol 2012; 21:4137-50. [PMID: 22693963 DOI: 10.1111/j.1365-294x.2012.05663.x] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
We empirically tested the long-standing hypothesis of codivergence of New World arenaviruses (NWA) with their hosts. We constructed phylogenies for NWA and all known hosts and used them in reconciliation analyses. We also constructed a phylogenetic tree of all Sigmodontinae and Neotominae rodents and tested whether viral-host associations were phylogenetically clustered. We determined host geographical overlap to determine to what extent opportunity to switch hosts was limited by host relatedness or physical proximity. With the exception of viruses from North America, no phylogenetically codivergent pattern between NWA and their hosts was found. We found that different virus clades were clustered differently and that Clade B with members pathogenic to humans was randomly distributed across the rodent phylogeny. Furthermore, viral relatedness within Clade B was significantly explained by the geographic overlap of their hosts' ranges rather than host relatedness, indicating that they are capable of host switching opportunistically. This has important bearings on their potential to become panzootic. Together, these analyses suggest that NWA have not codiverged with their hosts and instead have evolved predominantly via host switching.
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Affiliation(s)
- Nancy R Irwin
- Department of Biology, University of York, POBOX 373, York, YO10 5DD, UK.
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21
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Oncul O, Atalay Y, Onem Y, Turhan V, Acar A, Uyar Y, Caglayik DY, Ozkan S, Gorenek L. Hantavirus infection in Istanbul, Turkey. Emerg Infect Dis 2011; 17:303-4. [PMID: 21291612 PMCID: PMC3204758 DOI: 10.3201/eid1702.100663] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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22
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Tagliapietra V, Rosà R, Hauffe HC, Laakkonen J, Voutilainen L, Vapalahti O, Vaheri A, Henttonen H, Rizzoli A. Spatial and temporal dynamics of lymphocytic choriomeningitis virus in wild rodents, northern Italy. Emerg Infect Dis 2009; 15:1019-25. [PMID: 19624914 PMCID: PMC2744257 DOI: 10.3201/eid1507.081524] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Prevalence of virus infection was higher in areas of greater rodent density. We determined the prevalence of infection with lymphocytic choriomeningitis virus (LCMV) among small mammals in northern Italy and analyzed long-term dynamics of LCMV in a rodent population in the province of Trento. LCMV is circulating among the most widespread and common wild rodent species in this area (Apodemus flavicollis, Myodes glareolus, and Microtus arvalis); overall prevalence is 6.8%. During 2000–2006, intensive monitoring of LCMV in a population of yellow-necked mice (A. flavicollis) showed a positive correlation between prevalence of infection and rodent density. At the individual level, weight and sex appeared to correlate with antibody prevalence, which suggests that horizontal transmission of LCMV occurs principally among heavier, older males and occurs during fighting. Isolation and genetic characterization of this virus will be the crucial next steps for a better understanding of its ecology.
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Affiliation(s)
- Valentina Tagliapietra
- Edmund Mach Foundation-Istituto Agrario di San Michele all'Adige, San Michele all'Adige, Italy.
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23
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Tagliapietra V, Rosà R, Hauffe HC, Laakkonen J, Voutilainen L, Vapalahti O, Vaheri A, Henttonen H, Rizzoli A. Spatial and Temporal Dynamics of Lymphocytic Choriomeningitis Virus in Wild Rodents, Northern Italy. Emerg Infect Dis 2009. [DOI: 10.3201/eid1507.01524] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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24
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Charbonnel N, Deter J, Chaval Y, Laakkonen J, Henttonen H, Voutilainen L, Vapalahti O, Vaheri A, Morand S, Cosson JF. Serological evidence of viruses naturally associated with the montane water vole (Arvicola scherman) in eastern France. Vector Borne Zoonotic Dis 2009; 8:763-7. [PMID: 18752422 DOI: 10.1089/vbz.2007.0167] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
We surveyed 12 populations of the montane water vole (Arvicola scherman), previously known as the fossorial form of the water vole A. terrestris, in eastern France for antibodies (immunoglobulin G) to Puumala virus (PUUV), lymphocytic choriomeningitis virus (LCMV), and cowpox virus (CPXV). Antibodies to PUUV were found in 9 (5.5%) of 164 voles from 7 populations, antibodies to LCMV were found in 13 (26.0%) of 50 voles from 2 populations, and antibodies to CPXV were found in 66 (41.8%) of 158 voles from 7 populations. Antibody status to CPXV was statistically associated with the phase of the A. scherman population density cycle and the percentage of grassland areas surrounding the sampling sites.
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Affiliation(s)
- Nathalie Charbonnel
- Centre de Biologie et de Gestion des Populations, INRA EFPA, Campus International de Baillarguet, Montferrier s/Lez Cedex, France.
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25
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Abstract
Vaccinia virus (VACV) has been associated with several bovine vaccinia outbreaks in Brazil, affecting cattle and humans. There are no available data about VACV environmental circulation or the role of wildlife in the emergence of an outbreak. Since VACV was isolated from rodents in Brazil, we investigated shedding and transmission of VACV strains in mice. The VACV excretion profile was assessed by PCR and chicken chorioallantoic membrane infection, revealing viral DNA and infectious virus in the faeces and urine of intranasally infected mice. Horizontal transmission was assessed by exposure of sentinel mice to wood shavings contaminated with excrement, to mimic a natural infection. Sentinel mice showed orthopoxvirus antibodies, and VACV DNA and infectious virus were detected in their faeces and intestines, even after six rounds of natural transmission. Together, these data suggest that murine excrement could play a relevant role in VACV spread and transmission, perhaps helping to explain how these viruses circulate between their natural hosts.
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26
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Deter J, Bryja J, Chaval Y, Galan M, Henttonen H, Laakkonen J, Voutilainen L, Vapalahti O, Vaheri A, Salvador AR, Morand S, Cosson JF, Charbonnel N. Association between the DQA MHC class II gene and Puumala virus infection in Myodes glareolus, the bank vole. INFECTION GENETICS AND EVOLUTION 2007; 8:450-8. [PMID: 17693139 DOI: 10.1016/j.meegid.2007.07.003] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2007] [Revised: 07/02/2007] [Accepted: 07/05/2007] [Indexed: 10/23/2022]
Abstract
Puumala virus (PUUV) is a hantavirus specifically harboured by the bank vole, Myodes (earlier Clethrionomys) glareolus. It causes a mild form of hemorrhagic fever with renal syndrome (HFRS) in humans, called Nephropathia epidemica (NE). The clinical severity of NE is variable among patients and depends on their major histocompatibility complex (MHC) genetic background. In this study we investigated the potential role of class II MHC gene polymorphism in the susceptibility/resistance to PUUV in the wild reservoir M. glareolus. We performed an association study between the exon 2 of the DQA gene and PUUV antibodies considering a natural population of bank voles. Because immune gene polymorphism is likely to be driven by multiple parasites in the wild, we also screened bank voles for other potential viral and parasitic infections. We used multivariate analyses to explore DQA polymorphism/PUUV associations while considering the potential antagonist and/or synergistic effects of the whole parasite community. Our study suggests links between class II MHC characteristics and viral infections including PUUV and Cowpox virus. Several alleles are likely to be involved in the susceptibility or in the resistance of bank voles to these infections. Alternatively, heterozygosity does not seem to be associated with PUUV or any other parasite infections. This result thus provides no evidence in favour of the hypothesis of selection through overdominance. Finally this multivariate approach reveals a strong antagonism between ectoparasitic mites and PUUV, suggesting direct or indirect immunogenetic links between infections by these parasites. Other datasets are now required to confirm these results and to test whether the associations vary in space and/or time.
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Affiliation(s)
- Julie Deter
- Centre de Biologie et de Gestion et des Populations, Département INRA-EFPA 1062, Campus International de Baillarguet, CS 30016, 34988 Montferrier sur lez, France.
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