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Ticks and tick-borne diseases 16건

  1. [해외논문]   Neither quantification by qPCR nor quantitative Elisa can be used to discriminate Angus cattle for resistance/susceptibility to Babesia bovis   SCIE

    Giglioti, Rodrigo (Universidade Estadual Júlio de Mesquita Filho, Jaboticabal, SP, Brazil ) , Oliveira, Henrique Nunes (Universidade Estadual Júlio de Mesquita Filho, Jaboticabal, SP, Brazil ) , Ibelli, Adriana Mé (Embrapa Suínos e Aves, Concórdia, SC, Brazil ) , rcia Guaratini (Universidade Estadual Júlio de Mesquita Filho, Jaboticabal, SP, Brazil ) , Bilhassi, Talita Barban (Universidade Federal de, São Carlos, SP, Brazil ) , Né (Universidade Estadual Júlio de Mesquita Filho, Jaboticabal, SP, Brazil ) , o, Thalita Athiê (Embrapa Pecuária Sudeste, São Carlos, SP, Brazil ) , (Universidade Estadual Júlio de Mesquita Filho, Jaboticabal, SP, Brazil ) , Santana, Clarissa Helena (Embrapa Pecuária Sudeste, São Carlos, SP, Brazil ) , Rabelo, Má (Embrapa Pecuária Sudeste, São Carlos, SP, Brazil) , rcio Dias , Machado, Rosâ , ngela Zacarias , de Souza Chagas, Ana Carolina , de Sena Oliveira, Má , rcia Cristina
    Ticks and tick-borne diseases v.8 no.3 ,pp. 335 - 340 , 2017 , 1877-959x ,

    초록

    Abstract With the aim of finding quantitative phenotypic traits that can be used to discriminate the levels of resistance/susceptibility to Babesia bovis , we estimated the repeatability and correlation between the level of infection, determined by the number of copies of a fragment of the gene that encodes cytochrome B (NC mt-cyB) of B. bovis , and the levels of the anti- B. bovis antibodies, in blood samples collected from 51 Angus cattle on two different occasions. Samples with the anticoagulant EDTA were used for DNA extraction and without anticoagulant for separation of the blood serum. The quantification of the NC mt-cyB of B. bovis was carried out by the quantitative PCR technique (qPCR), while the anti- B. bovi s IgG antibody titers (S/P) were quantified by the ELISA method. The NC and S/P data were log10-transformed to improve the approximation to the normal distribution and were analyzed using mixed models. The correlations between NC mt-cyB and S/P were estimated, as well as the repeatability values for each trait. The results obtained showed the high sensitivity of the techniques, with 100% of the animals being positive for B. bovis, detected by both the serological and molecular tests. The correlations estimated between NC and S/P were low, 0.10 and 0.12, in the first and second collection, respectively. The repeatability estimated for NC was 0.06, whereas for the S/P it was 0.42. The low correlations between S/P and NC in the two collections demonstrated that the variation in the NC value is independent of the level of antibodies. This results indicated that animals with a higher levels of antibodies against B. bovis in the first collection continued to have a higher levels in the second one. However, the very low values for the repeatability value of NC, and for the correlations between S/P and NC, demonstrates that neither NC or S/P could be used to discriminate animals for resistance/susceptibility to B. bovis .

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  2. [해외논문]   Canine tick-borne pathogens in Cyprus and a unique canine case of multiple co-infections   SCIE

    Attipa, Charalampos (Diagnostic Laboratories, Langford Vets, School of Veterinary Sciences, University of Bristol, Langford, UK ) , Hicks, Chelsea A.E. (Diagnostic Laboratories, Langford Vets, School of Veterinary Sciences, University of Bristol, Langford, UK ) , Barker, Emily N. (Diagnostic Laboratories, Langford Vets, School of Veterinary Sciences, University of Bristol, Langford, UK ) , Christodoulou, Vasiliki (Veterinary Services of Cyprus, Nicosia, Cyprus ) , Neofytou, Kyriaki (Cyvets Veterinary Center, Paphos, Cyprus ) , Mylonakis, Mathios E. (Companion Animal Clinic, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece ) , Siarkou, Victoria I. (Laboratory of Microbiology and Infectious Diseases, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece ) , Vingopoulou, Elpida I. (Laboratory of Microbiology and Infectious Diseases, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece ) , Soutter, Francesca (Department of Pathology and Pathogen Biology, Royal Veterinary College, Hertfordshire, UK ;) , Chochlakis, Dimosthenis , Psaroulaki, Anna , Papasouliotis, Kostas , Tasker, Sé , verine
    Ticks and tick-borne diseases v.8 no.3 ,pp. 341 - 346 , 2017 , 1877-959x ,

    초록

    Abstract Canine tick-borne pathogens such as Ehrlichia canis and Hepatozoon canis are widespread in the Mediterranean basin but have never been reported or investigated in Cyprus. We describe herein the presence of canine tick-borne pathogens in three dogs with clinical signs compatible with vector-borne diseases from Paphos area of Cyprus. Molecular and phylogenetic analysis revealed the presence of E. canis , Anaplasma platys , H. canis , Babesia vogeli and Mycoplasma haemocanis in Cyprus. One dog co-infected with E. canis , H. canis , B. vogeli and M. haemocanis is, to the best of our knowledge, the first report of this multiple co-infection in dogs. The tick-borne pathogens reported in the current study should be considered in the differential diagnoses in dogs exposed to ticks in Cyprus. Graphical abstract [DISPLAY OMISSION]

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  3. [해외논문]   Detection of Rickettsia hoogstraalii, Rickettsia helvetica, Rickettsia massiliae, Rickettsia slovaca and Rickettsia aeschlimannii in ticks from Sardinia, Italy   SCIE

    Chisu, Valentina (Istituto Zooprofilattico Sperimentale della Sardegna, Sassari, Italy ) , Leulmi, Hamza (Aix Marseille Université, Unité) , Masala, Giovanna (de Recherche en Maladies Infectieuses et Tropicales Emergentes (URMITE), UM63, CNRS 7278, IRD 198 (Dakar), Inserm 1095, Marseille, France ) , Piredda, Mariano (Istituto Zooprofilattico Sperimentale della Sardegna, Sassari, Italy ) , Foxi, Cipriano (Istituto Zooprofilattico Sperimentale della Sardegna, Sassari, Italy ) , Parola, Philippe (Istituto Zooprofilattico Sperimentale della Sardegna, Sassari, Italy )
    Ticks and tick-borne diseases v.8 no.3 ,pp. 347 - 352 , 2017 , 1877-959x ,

    초록

    Abstract Tick-borne diseases represent a large proportion of infectious diseases that have become a world health concern. The presence of Rickettsia spp. was evaluated by standard PCR and sequencing in 123 ticks collected from several mammals and vegetation in Sardinia, Italy. This study provides the first evidence of the presence of Rickettsia hoogstralii in Haemaphysalis punctata and Haemaphysalis sulcata ticks from mouflon and Rickettsia helvetica in Ixodes festai ticks from hedgehog. In addition, Rickettsia massiliae , Rickettsia slovaca and Rickettsia aeschlimannii were detected in Rhipicephalus sanguineus , Dermacentor marginatus and Hyalomma marginatum marginatum ticks from foxes, swine, wild boars, and mouflon. The data presented here increase our knowledge of tick-borne diseases in Sardinia and provide a useful contribution toward understanding their epidemiology.

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  4. [해외논문]   Ticks and Borrelia in urban and peri-urban green space habitats in a city in southern England   SCIE

    Hansford, Kayleigh M. (Medical Entomology & Zoonoses Ecology, Emergency Response Department –) , Fonville, Manoj (Science & Technology, Health Protection Directorate, Public Health England, Porton Down, UK ) , Gillingham, Emma L. (National Institute of Public Health and the Environment (RIVM), Laboratory for Zoonoses and Environmental Microbiology, Bilthoven, The Netherlands ) , Coipan, Elena Claudia (Medical Entomology & Zoonoses Ecology, Emergency Response Department –) , Pietzsch, Maaike E. (Science & Technology, Health Protection Directorate, Public Health England, Porton Down, UK ) , Krawczyk, Aleksandra I. (National Institute of Public Health and the Environment (RIVM), Laboratory for Zoonoses and Environmental Microbiology, Bilthoven, The Netherlands ) , Vaux, Alexander G.C. (Medical Entomology & Zoonoses Ecology, Emergency Response Department –) , Cull, Benjamin (Science & Technology, Health Protection Directorate, Public Health England, Porton Down, UK ) , Sprong, Hein (National Institute of Public Health and the Environment (RIVM), Laboratory for Zoonoses and Environmental Microbiology, Bilthoven, The Netherlands ) , Medlock, Jolyon M. (Medical Entomology & Zoonoses Ecology)
    Ticks and tick-borne diseases v.8 no.3 ,pp. 353 - 361 , 2017 , 1877-959x ,

    초록

    Abstract Ticks are becoming increasingly recognised as important vectors of pathogens in urban and peri-urban areas, including green space used for recreational activities. In the UK, the risk posed by ticks in such areas is largely unknown. In order to begin to assess the risk of ticks in urban/peri-urban areas in southern England, questing ticks were collected from five different habitat types (grassland, hedge, park, woodland and woodland edge) in a city during the spring, summer and autumn of 2013/2014 and screened for Borrelia burgdorferi sensu lato. In addition, seasonal differences in B. burgdorferi s.l. prevalence were also investigated at a single site during 2015. Ixodes ricinus presence and activity were significantly higher in woodland edge habitat and during spring surveys. DNA of Borrelia burgdorferi s.l. was detected in 18.1% of nymphs collected across the 25 sites during 2013 and 2014 and two nymphs also tested positive for the newly emerging tick-borne pathogen B. miyamotoi . Borrelia burgdorferi s.l. prevalence at a single site surveyed in 2015 were found to be significantly higher during spring and summer than in autumn, with B. garinii and B. valaisiana most commonly detected. These data indicate that a range of habitats within an urban area in southern England support ticks and that urban Borrelia transmission cycles may exist in some of the urban green spaces included in this study. Sites surveyed were frequently used by humans for recreational activities, providing opportunity for exposure to Borrelia infected ticks in an urban/peri-urban space that might not be typically associated with tick-borne disease transmission.

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  5. [해외논문]   Local-scale spatio-temporal distribution of questing Ixodes ricinus L. (Acari: Ixodidae)-A case study from a riparian urban forest in Wrocław, SW Poland   SCIE

    Kiewra, Dorota (Department of Microbial Ecology and Environmental Protection, Institute of Genetics and Microbiology, University of Wrocław, Przybyszewskiego Str. 63/77, 51-148 Wrocław, Poland ) , Stefań (Department of Vegetation Ecology, Institute of Environmental Biology, University of Wrocław, Przybyszewskiego Str. 63/77, 51-148 Wrocław, Poland ) , ska-Krzaczek, Ewa (Department of Geoinformatics and Cartography, Institute of Geography and Regional Development, University of Wrocław, pl. Uniwersytecki 1, 50-137 Wrocław, Poland ) , Szymanowski, Mariusz (Department of Microbial Ecology and Environmental Protection, Institute of Genetics and Microbiology, University of Wrocław, Przybyszewskiego Str. 63/77, 51-148 Wrocław, Poland) , Szczepań , ska, Anna
    Ticks and tick-borne diseases v.8 no.3 ,pp. 362 - 369 , 2017 , 1877-959x ,

    초록

    Abstract This paper presents the distribution of questing Ixodes ricinus ticks in suburban forest intensively visited by people. The local-scale observations conducted during a 4-year study at 99 plots (of 100m 2 each) located throughout the entire area of a riparian urban forest, showed a high variation in the density of ticks from year to year. Although I. ricinus is generally permanent in the study area, spatial distribution of sample plots harbouring I. ricinus is variable, i.e. mainly random for adults and larvae, and random or clustered for nymphs. Among the most common plant species in the herb layer, there were not any species which had a statistically significant and constant impact on the occurrence of any of the development stages of I. ricinus. Also relations between the density of tick development stages and vegetation variables, including cover of the herb layer, total species number, species number of the herb layer, and percentage coverage of particular species, as well as ecological indices for light, soil moisture, reaction, and nutrients, did not show any constant and predictable pattern in subsequent years of the study. Only tree and shrub layers were found as variables positively affecting the density of ticks. Although small, suburban forests can be considered as tick-borne risk areas, it is impossible to determine in details areas of tick-borne risk.

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  6. [해외논문]   Borrelia miyamotoi in vectors and hosts in The Netherlands   SCIE

    Wagemakers, Alex (Center for Experimental and Molecular Medicine, Academic Medical Center, Meibergdreef 9, 1105AZ Amsterdam, The Netherlands ) , Jahfari, Seta (Center for Infectious Disease Control, Institute for Public Health and Environment, Antonie van Leeuwenhoeklaan 9, 3721 MA Bilthoven, The Netherlands ) , de Wever, Bob (Department of Medical Microbiology, Academic Medical Center, Meibergdreef 9, 1105AZ Amsterdam, The Netherlands ) , Spanjaard, Lodewijk (Department of Medical Microbiology, Academic Medical Center, Meibergdreef 9, 1105AZ Amsterdam, The Netherlands ) , Starink, Markus V. (Amsterdam Multidisciplinary Lyme borreliosis Center/Department of Dermatology, Meibergdreef 9, 1105AZ Amsterdam, The Netherlands ) , de Vries, Henry J.C. (Amsterdam Multidisciplinary Lyme borreliosis Center/Department of Dermatology, Meibergdreef 9, 1105AZ Amsterdam, The Netherlands ) , Sprong, Hein (Center for Infectious Disease Control, Institute for Public Health and Environment, Antonie van Leeuwenhoeklaan 9, 3721 MA Bilthoven, The Netherlands ) , Hovius, Joppe W. (Center for Experimental and Molecular Medicine/Amsterdam Multidisciplinary Lyme bor)
    Ticks and tick-borne diseases v.8 no.3 ,pp. 370 - 374 , 2017 , 1877-959x ,

    초록

    Abstract Ixodes ticks transmit Borrelia burgdorferi sensu lato (s.l.), the causative agent of Lyme borreliosis (LB). These tick species also transmit Borrelia miyamotoi, which was recently found to cause infections in humans. We were interested in the prevalence of B. miyamotoi infection in ticks and natural hosts in The Netherlands, and to what extent ticks are co-infected with B. burgdorferi. In addition, erythema migrans has been sporadically described in B. miyamotoi -infected patients, but these skin lesions might as well represent co-infections with B. burgdorferi s.l. We therefore investigated whether B. miyamotoi was present in LB-suspected skin lesions of patients referred to our tertiary Lyme disease clinic. 3360 questing Ixodes ricinus nymphs as well as spleen tissue of 74 rodents, 26 birds and 10 deer were tested by PCR for the presence of B. miyamotoi . Tick lysates were also tested for the presence of B. burgdorferi s.l. Next, we performed a PCR for B. miyamotoi in 31 biopsies from LB-suspected skin lesions in patients visiting our tertiary Lyme center. These biopsies had been initially tested for B. burgdorferi s.l. by PCR, and the skin lesions had been investigated by specialized dermatologists. Out of 3360 unfed (or questing) nymphs, 313 (9.3%) were infected with B. burgdorferi s.l., 70 (2.1%) were infected with B. miyamotoi , and 14 (0.4%) were co-infected with B. burgdorferi s.l. and B. miyamotoi . Co-infection of B. burgdorferi s.l. with B. miyamotoi occurred more often than expected from single infection prevalences (p=0.03). Both rodents (9%) and birds (8%) were found positive for B. miyamotoi by PCR, whereas the roe deer samples were negative. Out of 31 LB-suspected skin biopsies, 10 (32%) were positive for B. burgdorferi s.l. while none were positive for B. miyamotoi . The significant association of B. burgdorferi s.l. with B. miyamotoi in nymphs implies the existence of mutual reservoir hosts. Indeed, the presence of B. miyamotoi DNA indicates systemic infections in birds as well as rodents. However, their relative contributions to the enzootic cycle of B. miyamotoi requires further investigation. We could not retrospectively diagnose B. miyamotoi infection using biopsies of LB-suspected skin lesions, supporting the hypothesis that B. miyamotoi is not associated with LB-associated skin manifestations. However, this warrants further studies in larger sets of skin biopsies. A prospective study focused on acute febrile illness after a tick bite could provide insight into the incidence and clinical manifestations of B. miyamotoi infection in The Netherlands.

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  7. [해외논문]   The risk of exposure to rickettsial infections and human granulocytic anaplasmosis associated with Ixodes ricinus tick bites in humans in Romania: A multiannual study   SCIE

    Matei, Ioana Adriana (Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine, Cluj Napoca, Department of Parasitology and Parasitic Diseases, Cluj Napoca, Cluj, Romania ) , Kalmá (Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine, Cluj Napoca, Department of Parasitology and Parasitic Diseases, Cluj Napoca, Cluj, Romania ) , r, Zsuzsa (University of Medicine and Pharmacy “Iuliu Haţieganu”, Department of Infectious Diseases, Cluj-Napoca, Romania ) , Lupş (Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine, Cluj Napoca, Department of Parasitology and Parasitic Diseases, Cluj Napoca, Cluj, Romania ) , e, Mihaela (Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine, Cluj Napoca, Department of Parasitology and Parasitic Diseases, Cluj Napoca, Cluj, Romania ) , D'Amico, Gianluca (Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine, Cluj Napoca, Department of Parasitology) , Ionică , , Angela Monica , Dumitrache, Mirabela Oana , Gherman, Că , lin Mircea , Mihalca, Andrei Daniel
    Ticks and tick-borne diseases v.8 no.3 ,pp. 375 - 378 , 2017 , 1877-959x ,

    초록

    Abstract Anaplasma phagocytophilum and spotted fever group Rickettsia are obligate intracellular Gram-negative tick-borne bacteria, among which several may cause clinical infections in humans. Several Rickettsia spp. and A. phagocytophilum are transmitted in Europe by Ixodes ricinus , the most common tick species feeding on humans in this area. The aim of this study was to evaluate the annual prevalence of Rickettsia spp. and A. phagocytophilum in I. ricinus collected from humans during three consecutive years. The mean prevalences of the infection with the investigated pathogens in I. ricinus ticks collected from human patients were as follows: A. phagocytophilum (5.56%), R. helvetica (4.79%) and R. monacensis (1.53%). In the present study, no significant differences of pathogens prevalence between the three years study period were observed, except the prevalence of R. helvetica , which had a significant increase in 2015, suggesting an increasing risk for humans to be exposed to this zoonotic pathogen.

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  8. [해외논문]   Life cycle and parasitic competence of Dermacentor nitens Neumann, 1897 (Acari: Ixodidae) on different animal species   SCIE

    Rodrigues, Vinicius da Silva (Pós-Graduação em Doenças Infecciosas e Parasitárias—Faculdade de Medicina, UFMS—Univ. Federal Mato Grosso do Sul, Laboratório de Biologia do Carrapato, Embrapa Gado de Corte, Campo Grande, MS, Brazil ) , Garcia, Marcos Valé (Laboratório de Biologia do Carrapato, Empresa Brasileira de Pesquisa Agropecuária, Embrapa Gado de Corte, Bolsista DCR Fundect, MS—Governo do estado de Mato Grosso do Sul, Campo Grande, MS, Brazil ) , rio (Faculdade de Ciências Agrárias e Veterinárias, UNESP—Univ. Estadual Paulista, Campus de Jaboticabal, Departamento de Patologia Veterinária, CPPAR—Centro de Pesquisas em Sanidade Animal, Brazil ) , Cruz, Breno Cayeiro (Faculdade de Ciências Agrárias e Veterinárias, UNESP—Univ. Estadual Paulista, Campus de Jaboticabal, Departamento de Patologia Veterinária, CPPAR—Centro de Pesquisas em Sanidade Animal, Brazil ) , Maciel, Willian Giquelin (Laboratório de Biologia do Carrapato, Empre) , Zimmermann, Namor Pinheiro , Koller, Wilson Werner , Barros, Jacqueline Cavalcante , Andreotti, Renato
    Ticks and tick-borne diseases v.8 no.3 ,pp. 379 - 384 , 2017 , 1877-959x ,

    초록

    Abstract The objective of this study was to evaluate the life cycle and parasitic competence of Dermacentor nitens (Neumann, 1897) on different animal species. Experimental infestations were induced in five specimens each of seven species of possible hosts: rabbits, horses, sheep, cows, guinea pigs, birds and dogs. Rabbits were infested in the ear using artificial feeding chambers, and the horses, sheep, cows and dogs were infested in the ear without feeding chambers. For the infestation of guinea pigs, artificial feeding chambers were fixed on the back. Birds were infested by placing larvae on the back and under the wings without the use of chambers. All animals were inspected daily until the end of the parasitic phase (when the engorged females detached). The average period of engorgement was 25.1days on a horse, with larvae requiring 8days and nymphs 9days to reach engorgement; the average weight of engorged females was 271.4mg; the average weight of egg batches produced was 159.3mg, and the feed conversion rate was 56.8%. On rabbits, the average engorgement period was 27.6days, larvae and nymphs reached engorgement after 7.4 and 11days, respectively, the average weight of an engorged female was 108.4mg and the egg mass was 30.6mg. The feed conversion rate on rabbits was 30%. Cows, sheep, guinea pigs, dogs and birds were not competent hosts, since no engorged females were recovered. Rabbits, when artificially infested, can be used as an alternative host for the maintenance of these ticks in the laboratory. The parasitic specificity of D. nitens for horses was demonstrated in this study.

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  9. [해외논문]   Novel sub-lineages, recombinants and reassortants of severe fever with thrombocytopenia syndrome virus   SCIE

    Lv, Qiang (Institute of Pathogen Biology, Taishan Medical College, Taian, Shandong 271000, China ) , Zhang, Hong (The Affiliated Hospital of Taishan Medical University, Taian, Shandong 271000, China ) , Tian, Lei (The 88 Hospital of The Chinese People's Liberation Army, Taian, Shandong 271000, China ) , Zhang, Ruiling (Institute of Pathogen Biology, Taishan Medical College, Taian, Shandong 271000, China ) , Zhang, Zhenjie (Institute of Pathogen Biology, Taishan Medical College, Taian, Shandong 271000, China ) , Li, Juan (Institute of Pathogen Biology, Taishan Medical College, Taian, Shandong 271000, China ) , Tong, Yigang (Beijing Institute of Microbiology and Epidemiology, Beijing 100071, China ) , Fan, Hang (Beijing Institute of Microbiology and Epidemiology, Beijing 100071, China ) , Carr, Michael J. (Global Station for Zoonosis Control, Global Institution for Collaborative Research and Education (GI-CoRE), Hokkaido University, Sapporo 001-0020, Japan ) , Shi, Weifeng (Institute of Pathogen Biology, Taishan Medical College, Taian, Shandong 271000, China)
    Ticks and tick-borne diseases v.8 no.3 ,pp. 385 - 390 , 2017 , 1877-959x ,

    초록

    Abstract Severe fever with thrombocytopenia syndrome virus (SFTSV) has been continuously circulating in Eastern Asia in recent years, without the availability of effective vaccines or antiviral drugs, posing a serious threat to public health, particularly in the central-eastern provinces of China. In this study, we isolated and sequenced four new SFTSV strains from Shandong Province identified in 2015. Phylogenetic analysis, with all publicly available L, M and S gene segments, revealed that the four newly described SFTSV strains belonged to genotype C3. In addition, our phylogenetic analyses also identified two potentially novel sub-lineages of SFTSV, tentatively named C6 and J4. Our comprehensive analysis revealed twenty recombination events in fourteen SFTSV genomes and recombination events were found in the S gene segment for the first time. A total of twenty-six strains were probable SFTSV reassortants, including sixteen which were previously unidentified. We further characterised the genetic constellation of these putative reassortants and classified them into twelve different reassortment forms. Our study revealed multiple evolutionary forces acting on SFTSV, responsible for the increasing genetic diversity of this agent, which could potentially alter the antigenicity and pathogenicity of the virus. This calls for an urgent need for intensified surveillance and the development of vaccines and antiviral drugs against this high-consequence pathogen.

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  10. [해외논문]   Ixodes ricinus immunogenic saliva protein, homologue to Amblyomma americanum AV422: Determining its potential for use in tick bite confirmation   SCIE

    Mihaljica, Darko (University of Belgrade, Institute for Medical Research, Centre of Excellence for Food and Vector-Borne Zoonoses, Laboratory for Medical Entomology, Dr Subotića 4, PO Box 102, 11129 Belgrade, Serbia ) , Marković (University of Belgrade, Institute for Medical Research, Department of Immunology, Dr Subotića 4, PO Box 102, 11129 Belgrade, Serbia ) , , Dragana (University of Belgrade, Institute for Medical Research, Centre of Excellence for Food and Vector-Borne Zoonoses, Laboratory for Medical Entomology, Dr Subotića 4, PO Box 102, 11129 Belgrade, Serbia ) , Radulović (Texas A&M University, College of Veterinary Medicine, Department of Veterinary Pathobiology, USA ) , , Ž (University of Belgrade, Institute for Medical Research, Centre of Excellence for Food and Vector-Borne Zoonoses, Laboratory for Medical Entomology, Dr Subotića 4, PO Box 102, 11129 Belgrade, Serbia ) , eljko (University of Belgrade, Institute for Medical Research, Centre of Excellence for Food and Vector-Borne Zoonoses, Laboratory for Medical Entomol) , Mulenga, Albert , Ć , akić , , Sanja , Sukara, Ratko , Samardž , ić , , Jelena , Tomanović , , Snež , ana
    Ticks and tick-borne diseases v.8 no.3 ,pp. 391 - 395 , 2017 , 1877-959x ,

    초록

    Abstract Tick bites often go unnoticed, so specific reliable tests are needed to confirm them for prompt diagnosis and treatment of tick-borne diseases. One of the promising candidates for developing such a test is AV422, a tick saliva protein that has been conserved across tick genera. In this study, we demonstrate the potential of the AV422 homologue from Ixodes ricinus to be used for tick bite detection for both Prostriata and Metastriata. We expressed recombinant (r) I. ricinus ( Ir ) AV422 in E. coli and subjected it to Western blot analysis using rat antibodies to saliva proteins of both I. ricinus (Prostriata) and Dermacentor reticulatus (Metastriata) larvae. Our data demonstrate that r Ir AV422 specifically bound to antibodies from sera of rats used for both I. ricinus and D. reticulatus larvae feeding, but not to antibodies from control serum, emphasizing its specificity since tick bites were the sole cause of sera reactivity.

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