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Kmetiuk LB, Biondo LM, Pedrosa F, Favero GM, Biondo AW. One Health at gunpoint: Impact of wild boars as exotic species in Brazil - A review. One Health 2023; 17:100577. [PMID: 37332883 PMCID: PMC10276213 DOI: 10.1016/j.onehlt.2023.100577] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 06/04/2023] [Accepted: 06/05/2023] [Indexed: 06/20/2023] Open
Abstract
Wild boars have been listed among the 100 most invasive species worldwide, spreading impacts to all continents, with the exception of Antarctica. In Brazil, a major source of introduction was a commercial livestock importation for exotic meat market, followed by successive escapes and releases to natural ecosystems. Currently found in all six Brazilian biomes, with reports in 11 Brazilian states, wild boars have invaded natural and agricultural areas. Wild boars have been reportedly indicated as hosts and reservoirs of several zoonotic diseases in Brazil, including toxoplasmosis, salmonelosis, leptospirosis, brucellosis, tuberculosis, trichinellosis, and hepatitis E. Wild boars have been also associated with Brazilian spotted fever and rabies, infected while providing plentiful exotic blood supply for native ticks and hematophagous bats. Due to their phylogenetic proximity, wild boars may present ecological niche overlapping and direct disease risk to native white-lipped and collared peccaries. Moreover, wild boars may post an economical threat to Brazilian livestock industry due to restrictive diseases such as Aujeszky, enzootic pneumonia, neosporosis, hemoplasmosis, and classic swine fever. Finally, wild boars have directly impacted in environmentally protected areas, silting up water springs, rooting and wallowing native plants, decreasing native vegetal coverage, disbalancing of soil components, altering soil structure and composition. Wild boar hunting has failed as a control measure to date, according to the Brazilian Ministry of Environment, due to private hunting groups mostly targeting males, intentionally leaving females and piglets alive, disseminating wild boar populations nationwide. Meanwhile, non-government animal welfare organizations have pointed to animal cruelty of hunting dogs and wild boars (and native species) during hunting. Despite unanimous necessity of wild boar control, eradication and prevention, methods have been controversial and should focus on effective governmental measures instead occasional game hunting, which has negatively impacted native wildlife species while wild boars have continuously spread throughout Brazil.
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Affiliation(s)
- Louise Bach Kmetiuk
- Department of Veterinary Medicine, Federal University of Paraná (UFPR), Curitiba, PR 80035-050, Brazil
| | - Leandro Menegueli Biondo
- National Institute of the Atlantic Forest (INMA), Brazilian Ministry of Science, Technology, and Innovation, Santa Teresa, Espirito Santo, Brazil
| | - Felipe Pedrosa
- Mão na Mata – Environmental Management and Solutions, São Paulo, SP 05350-000, Brazil
| | - Giovani Marino Favero
- Department of General Biology, State University of Ponta Grossa, General Carlos Cavalcanti, 4748, Ponta Grossa, PR 84030-900, Brazil
| | - Alexander Welker Biondo
- Department of Veterinary Medicine, Federal University of Paraná (UFPR), Curitiba, PR 80035-050, Brazil
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Milićević V, Glišić D, Sapundžić ZZ, Milovanović B, Maletić J, Jezdimirović N, Kureljušić B. Seroprevalence of Viral Enzootic Diseases in Swine Backyard Farms in Serbia. Animals (Basel) 2023; 13:3409. [PMID: 37958164 PMCID: PMC10649762 DOI: 10.3390/ani13213409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 10/26/2023] [Accepted: 10/31/2023] [Indexed: 11/15/2023] Open
Abstract
Contrary to pig farming in developed Western countries, in a large part of the world, pigs are still traditionally kept in small backyard farms, usually for family needs. Their main characteristics are low biosecurity, swill feeding, natural breeding and uncontrolled trade. Given the high number of backyard farms in Serbia and the risk they are thought to pose to intensive pig farming, the main aim of this study was to evaluate the prevalence of major viral diseases of swine among traditionally kept pigs in small holdings with low biosecurity. For this investigation, 222 serum samples from 69 backyard holdings were randomly selected and tested for antibodies to Porcine Reproductive and Respiratory Syndrome virus (PRRSV), Aujeszky's disease virus (ADV), Porcine Parvovirus (PPV) and Swine influenza Virus (SIV) by enzyme-linked immunosorbent assay (ELISA). The herd-level seroprevalence of PRRS, Aujeszky's disease and PPV was 2.9%, 27.5% and 37.7%, respectively. Swine influenza seroconversion was not confirmed in any of the tested holdings. Despite widely distributed PPV and AD in backyard farms in Serbia, almost 50% of them are still negative for all the tested diseases. The backyard farms must be monitored, and owners must be educated as their role in eradication programs and obtaining country-free status may be crucial.
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Affiliation(s)
- Vesna Milićević
- Institute of Veterinary Medicine of Serbia, Janisa Janulisa 14, 11000 Belgrade, Serbia; (D.G.); (Z.Z.S.); (B.M.); (J.M.); (N.J.); (B.K.)
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Tong C, Fu PF, Ming SL, Zeng L, Zhu HS, Wang J. Acute transcriptomic changes in murine RAW 264.7 cells following pseudorabies virus infection. Arch Virol 2022; 167:2623-2631. [PMID: 36269412 DOI: 10.1007/s00705-022-05598-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Accepted: 07/29/2022] [Indexed: 12/14/2022]
Abstract
Next-generation sequencing enables the evaluation of gene expression changes resulting from virus-host interactions at the RNA level. Pseudorabies virus (PRV) causes substantial economic loss in the swine industry. Recent research has revealed that PRV can be transmitted to and infect humans as well. To identify physiopathological and pathological responses post-PRV infection, we characterized transcriptomic changes in the murine RAW 264.7 cell line over the course of 36 h. In total, 156, 153, and 190 differentially expressed genes were identified at 2 h, 12 h, and 36 h, respectively. Seven differentially expressed genes (Trim27, Ccdc117, Mrps12, Ccl4, Cerkl, Ubald1, and Hmga1-rs1) were present across all treatment groups. Our findings expand our knowledge of gene regulation and immune response following PRV infection. These differentially expressed genes can subsequently improve our understanding of PRV pathogenesis.
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Affiliation(s)
- Chao Tong
- College of Veterinary Medicine, Henan Agricultural University, 450000, Zhengzhou, Henan province, China.,Wuhu Overseas Student Pioneer Park, 241006, Wuhu, China
| | - Peng-Fei Fu
- College of Veterinary Medicine, Henan Agricultural University, 450000, Zhengzhou, Henan province, China.,Key Laboratory of Animal Biochemistry and Nutrition, Henan Agricultural University, Ministry of Agriculture and Rural Affairs of the People's Republic of China, 450046, Zhengzhou, Henan Province, China.,Key Laboratory of Animal Growth and Development, The Education Department of Henan Province, 450046, Zhengzhou, Henan Province, China
| | - Sheng-Li Ming
- College of Veterinary Medicine, Henan Agricultural University, 450000, Zhengzhou, Henan province, China.,Key Laboratory of Animal Biochemistry and Nutrition, Henan Agricultural University, Ministry of Agriculture and Rural Affairs of the People's Republic of China, 450046, Zhengzhou, Henan Province, China.,Key Laboratory of Animal Growth and Development, The Education Department of Henan Province, 450046, Zhengzhou, Henan Province, China
| | - Lei Zeng
- College of Veterinary Medicine, Henan Agricultural University, 450000, Zhengzhou, Henan province, China.,Key Laboratory of Animal Biochemistry and Nutrition, Henan Agricultural University, Ministry of Agriculture and Rural Affairs of the People's Republic of China, 450046, Zhengzhou, Henan Province, China.,Key Laboratory of Animal Growth and Development, The Education Department of Henan Province, 450046, Zhengzhou, Henan Province, China
| | - He-Shui Zhu
- College of Veterinary Medicine, Henan Agricultural University, 450000, Zhengzhou, Henan province, China. .,Key Laboratory of Animal Biochemistry and Nutrition, Henan Agricultural University, Ministry of Agriculture and Rural Affairs of the People's Republic of China, 450046, Zhengzhou, Henan Province, China. .,Key Laboratory of Animal Growth and Development, The Education Department of Henan Province, 450046, Zhengzhou, Henan Province, China.
| | - Jiang Wang
- College of Veterinary Medicine, Henan Agricultural University, 450000, Zhengzhou, Henan province, China. .,Key Laboratory of Animal Biochemistry and Nutrition, Henan Agricultural University, Ministry of Agriculture and Rural Affairs of the People's Republic of China, 450046, Zhengzhou, Henan Province, China. .,Key Laboratory of Animal Growth and Development, The Education Department of Henan Province, 450046, Zhengzhou, Henan Province, China.
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Liu A, Xue T, Zhao X, Zou J, Pu H, Hu X, Tian Z. Pseudorabies Virus Associations in Wild Animals: Review of Potential Reservoirs for Cross-Host Transmission. Viruses 2022; 14:v14102254. [PMID: 36298809 PMCID: PMC9609849 DOI: 10.3390/v14102254] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Accepted: 10/12/2022] [Indexed: 11/07/2022] Open
Abstract
Pseudorabies virus (PRV) has received widespread attention for its potential health effects on humans, wildlife, domestic animals, and livestock. In this review, we focus on PRV dynamics in wildlife, given the importance of wild-origin PRV transmission to domestic and farm animals. Wild boars, pigs, and raccoons can serve as reservoirs of PRV, with viral transmission to domestic livestock occurring via several routes, such as wild herd exposure, contaminated meat consumption, and insect vector transmission. Many endangered feline and canine species can be infected with PRV, with acute disease and death within 48 h. The first confirmed human case of PRV infection in mainland China was reported in 2017. Thus, PRV exhibits potentially dangerous cross-host transmission, which is likely associated with inappropriate vaccination, poor awareness, and insufficient biosecurity. Currently, no vaccine provides full protection against PRV in all animals. Here, we summarize the epidemiology and pathogenesis of PRV infection in wild, domestic, and farmed animals, which may facilitate the design of novel therapeutics and strategies for controlling PRV infection and improving wildlife protection in China.
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Affiliation(s)
- Aijing Liu
- Yibin Key Laboratory of Zoological Diversity and Ecological Conservation, Faculty of Agriculture, Forestry, and Food Engineering, Yibin University, Yibin 644000, China
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin 150001, China
| | - Tong Xue
- School of Mathematical Science, Harbin Normal University, Harbin 150001, China
| | - Xiang Zhao
- Yibin Key Laboratory of Zoological Diversity and Ecological Conservation, Faculty of Agriculture, Forestry, and Food Engineering, Yibin University, Yibin 644000, China
| | - Jie Zou
- Yibin Key Laboratory of Zoological Diversity and Ecological Conservation, Faculty of Agriculture, Forestry, and Food Engineering, Yibin University, Yibin 644000, China
| | - Hongli Pu
- Yibin Key Laboratory of Zoological Diversity and Ecological Conservation, Faculty of Agriculture, Forestry, and Food Engineering, Yibin University, Yibin 644000, China
| | - Xiaoliang Hu
- Yibin Key Laboratory of Zoological Diversity and Ecological Conservation, Faculty of Agriculture, Forestry, and Food Engineering, Yibin University, Yibin 644000, China
| | - Zhige Tian
- Yibin Key Laboratory of Zoological Diversity and Ecological Conservation, Faculty of Agriculture, Forestry, and Food Engineering, Yibin University, Yibin 644000, China
- Correspondence:
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Kondibaeva ZB, Yespembetov BA, Abeuov KB, Mussayeva AK, Siyabekov ST, Nussupova ST, Akmatova EK, Pazylov YK, Maikhin KT, Syrym NS. Inactivated vaccine against Aujeszky's disease. Vet World 2021; 14:2957-2963. [PMID: 35017844 PMCID: PMC8743780 DOI: 10.14202/vetworld.2021.2957-2963] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Accepted: 09/21/2021] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND AND AIM The Aujeszky's disease, also known as Pseudorabies, remains one of the most problematic fulminant diseases in domestic animals, affecting the central nervous system. The study aimed to investigate the effect of an inactivated vaccine against Aujeszky's disease based on "Kordai" virus strain. MATERIALS AND METHODS To test the inactivation of the "Kordai" strain (grown by the roller method in VNK-21/13 cell culture with an infectious titer of at least 7.5 lg TCD50/ml) which is causative of Aujeszky's disease, next-generation teotropin and propolis preparations were usedin concentrations of 0.1%, 0.08%, and 0.04%. RESULTS As a result of comparative studies on the optimization of parameters for inactivating the "Kordai" virus strain, it was established that teotropin is a more effective inactivant than propolis. At the same time, the optimal final concentration of teotropin for inactivation was 0.1%, along with a reaction medium temperature of 37°C, pH of 7.4-7.6, and duration of inactivation of 14 h. The titer of virus-neutralizing activity (VNA) of antibodies at the pH (neutralization reactions) in vaccinated sheep of 10-12 months of age was 7.5±0.3, Ig TCID50/ml (tissue culture infectious dose 50%), and 3.5±0.3 in the cell culture VNK-21/13 (culture of Syrian hamster kidney cells). CONCLUSION To determine colostral immunity in newborn lambs, the method of metabolic status correction was used to vaccinate lambs obtained from immune sheep 4 months after birth. The results showed that lambs obtained from immune sheep had high VNA titers. A sustained immune response in vaccinated animals was obtained after double vaccination.
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Affiliation(s)
- Zhanat B. Kondibaeva
- Laboratory of Diagnostic of the Infectious Diseases , Research Institute for Biological Safety Problems, Gwardeiski, Kazakhstan
| | - Bolat A. Yespembetov
- Laboratory of Microbiology , Research Institute for Biological Safety Problems, Gwardeiski, Kazakhstan
| | - Khairulla B. Abeuov
- Laboratory of Diagnostic of the Infectious Diseases , Research Institute for Biological Safety Problems, Gwardeiski, Kazakhstan
| | - Assiya K. Mussayeva
- Bacteriology Laboratory , Kazakh Scientific Research Veterinary Institute, Astana, Kazakhstan
| | - Sarsenbek T. Siyabekov
- Department of Clinical Veterinary Medicine , Kazakh National Agrarian University, Almaty, Kazakhstan
| | - Saltanat T. Nussupova
- Department of Clinical Veterinary Medicine , Kazakh National Agrarian University, Almaty, Kazakhstan
| | - Elmira K. Akmatova
- Laboratory o the diseases of domestic animals , Kyrgyz Research Institute of Veterinary named after A. Duysheev, Bishkek, Kyrgyzstan
| | - Yerlan K. Pazylov
- Laboratory of Diagnosis of Infectious Diseases, National Reference Veterinary Center Almaty Branch, Almaty, Kazakhstan
| | - Kydyrbay T. Maikhin
- Laboratory of Diagnosis of Infectious Diseases, National Reference Veterinary Center Almaty Branch, Almaty, Kazakhstan
| | - Nazym S. Syrym
- Laboratory of Microbiology , Research Institute for Biological Safety Problems, Gwardeiski, Kazakhstan
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Occurrence of Aujeszky’s disease in wild boar (Sus scrofa) in Slovakia. Biologia (Bratisl) 2021. [DOI: 10.1007/s11756-021-00699-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Genetic Analysis and Distribution of Porcine Parvoviruses Detected in the Organs of Wild Boars in Serbia. ACTA VET-BEOGRAD 2021. [DOI: 10.2478/acve-2021-0003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Abstract
Porcine parvoviruses (PPVs) are diverse and persistently evolving viruses found in domestic pigs and wild boars. Porcine parvovirus 1 (PPV1) causes reproductive problems in adult animals, although the veterinary relevance of PPV2, PPV3, and PPV4 has not been clarified. The detection and sequence analysis of PPVs circulating in wild boar populations in Serbia was performed to determine their phylogenetic relationships and prevalence in 122 organ samples collected during 2018. The DNA of PPV1, PPV2, and PPV3 was detected in 56.6% of the examined samples, whilst PPV4 was not identified. Overall, PPV3 was the most prevalent in 69.6% of the positive samples, followed by PPV1 in 63.8%, and PPV2 in 21.7% samples. Single infections were more common, although concurrent infections were confirmed in 34.8% samples for two, and 10.1% samples for three viruses. Sequence analysis of wild boar PPV1 showed no significant nucleotide differences from domestic pig PPV1 strains detected in Europe and the USA, however separate clustering from strains from China and the NADL-2 strain was demonstrated. Examination of the selected PPV2 sequences might suggest a certain geographical distribution of genetically diverse PPV2 strains considering high similarities to the strains from neighboring countries, and variability in comparison with other reported PPV2 sequences from different parts of the world. Wild boar PPV3 sequences clustered separately from most of the strains detected in wild boars, as well as the original porcine hokovirus strain. It is further noted that genetically different PPV3 strains circulate amongst Serbian domestic pigs and wild boars.
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Phylogenetic Analysis of HA and NA Genes of Swine Influenza Viruses in Serbia in 2016-2018. ACTA VET-BEOGRAD 2020. [DOI: 10.2478/acve-2020-0008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Abstract
Pigs are very important for the epidemiology of influenza A viruses, being commonly infected with the lineages of most adapted H1N1, H3N2, H1N2 swine subtypes. Epidemiological complexity of swine influenza is increasing by a periodic spillover of human or avian viruses in the pig population when genetic shifts can occur. The objectives of this research were to determine the presence of the influenza A virus in nasal and tracheobronchial swabs and lung tissue samples of ill and dead pigs on commercial farms, to determine circulating subtypes and characterize them through the phylogenetic analysis of hemagglutinin (HA) and neuraminidase (NA) genes. A total of 255 samples collected from 13 farms were analyzed by means of real-time RTPCR. The genome of influenza A virus was detected in 24 samples, which represented a 61.5% prevalence at the farms level (influenza A virus was confirmed in 8 out of 13 farms included in this study). Based on HA and NA gene sequences of 8 viruses, the circulation of H1N1 and H3N2 subtypes of influenza A viruses were determined. In addition, one farm exhibited a time separated circulation of H1N1 and H3N2 virus subtypes. Using Influenza Research Database, our viruses of the H1 subtype were classified into 1C.2.1 and 1A.3.3.2. clade. Based on the nucleotide sequences of HA genes, three viruses of the H1N1 subtype belong to the H1N1pdm09 lineage, and the other four to Eurasian “avian-like” H1avN1 lineage; while based on NA genes sequences, these seven viruses belong to Eurasian “avian-like” H1avN1 lineage. Both HA and NA genes of the virus of the H3N2 subtype belonged to the A/swine/ Gent/1/1984-like H3N2 lineage.
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Genetic Diversity among Pseudorabies Viruses Isolated from Dogs in France from 2006 to 2018. Pathogens 2019; 8:pathogens8040266. [PMID: 31779166 PMCID: PMC6963927 DOI: 10.3390/pathogens8040266] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 11/22/2019] [Accepted: 11/23/2019] [Indexed: 12/15/2022] Open
Abstract
Pseudorabies (PR), also known as Aujeszky’s disease, is an economically important disease for the pig industry. It has been eradicated in domestic pigs in many European countries, including France, but its causative agent—Suid Herpesvirus 1—is still circulating in wild boars. The risk of endemic PR in wild fauna lies in reintroducing the virus among domestic pigs and transmitting it to other mammals, especially hunting dogs for which the disease is rapidly fatal. As such infections are regularly reported in France, this study genetically characterized canine PR virus strains in the country to obtain information on their diversity and evolution. Partial sequencing of the glycoprotein C-encoding gene from 55 virus strains isolated from dogs between 2006 and 2018 showed that 14 strains belonged to genotype I-clade A and another 38 to genotype I-clade B, two clades usually reported in Western Europe. More surprisingly, three strains were found to belong to genotype II, suggesting an Asian origin. Genotype I-clade A strains exhibited the highest diversity as five geographically segregated genogroups were identified.
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Nielsen SS, Alvarez J, Bicout D, Calistri P, Depner K, Drewe JA, Garin-Bastuji B, Gonzales Rojas JL, Michel V, Miranda MA, Roberts H, Sihvonen L, Spoolder H, Ståhl K, Viltrop A, Winckler C, Boklund A, Bøtner A, Gonzales Rojas JL, More SJ, Thulke HH, Antoniou SE, Cortinas Abrahantes J, Dhollander S, Gogin A, Papanikolaou A, Gonzalez Villeta LC, Gortázar Schmidt C. Risk assessment of African swine fever in the south-eastern countries of Europe. EFSA J 2019; 17:e05861. [PMID: 32626162 PMCID: PMC7008867 DOI: 10.2903/j.efsa.2019.5861] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
The European Commission requested EFSA to estimate the risk of spread of African swine fever (ASF) and to identify potential risk factors (indicators) for the spread of ASF, given introduction in the south-eastern countries of Europe (region of concern, ROC), namely Albania, Bosnia and Herzegovina, Croatia, Greece, Kosovo, Montenegro, North Macedonia, Serbia and Slovenia. Three EU Member States (MS) - Croatia, Greece and Slovenia - were included in the ROC due to their geographical location and ASF-free status. Based on collected information on potential risk factors (indicators) for each country and the relevant EU regulations in force, the estimated probability of spread of ASF within the ROC within one year after introduction into the ROC was assessed to be very high (from 66% to 100%). This estimate was determined after considering the high number of indicators present in most of the countries in the ROC and the known effect that these indicators can have on ASF spread, especially those related to the structure of the domestic pig sector, the presence of wild boar and social factors. The presence of indicators varies between countries in the ROC. Each country is at risk of ASF spread following introduction; however, some countries may have a higher probability of ASF spread following introduction. In addition, the probability of ASF spread from the ROC to EU MSs outside the ROC within one year after introduction of ASF in the ROC was estimated to be very low to low (from 0% to 15%). This estimate was based on the comparison of the indicators present in the ROC and the already affected countries in south-eastern Europe, such as Bulgaria and Romania, where there was no evidence of ASF spread to other EU MS within one year.
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Analysis of the Complete Genome Sequence of a Novel, Pseudorabies Virus Strain Isolated in Southeast Europe. CANADIAN JOURNAL OF INFECTIOUS DISEASES & MEDICAL MICROBIOLOGY 2019; 2019:1806842. [PMID: 31093307 PMCID: PMC6476139 DOI: 10.1155/2019/1806842] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Accepted: 12/27/2018] [Indexed: 12/05/2022]
Abstract
Background Pseudorabies virus (PRV) is the causative agent of Aujeszky's disease giving rise to significant economic losses worldwide. Many countries have implemented national programs for the eradication of this virus. In this study, long-read sequencing was used to determine the nucleotide sequence of the genome of a novel PRV strain (PRV-MdBio) isolated in Serbia. Results In this study, a novel PRV strain was isolated and characterized. PRV-MdBio was found to exhibit similar growth properties to those of another wild-type PRV, the strain Kaplan. Single-molecule real-time (SMRT) sequencing has revealed that the new strain differs significantly in base composition even from strain Kaplan, to which it otherwise exhibits the highest similarity. We compared the genetic composition of PRV-MdBio to strain Kaplan and the China reference strain Ea and obtained that radical base replacements were the most common point mutations preceding conservative and silent mutations. We also found that the adaptation of PRV to cell culture does not lead to any tendentious genetic alteration in the viral genome. Conclusion PRV-MdBio is a wild-type virus, which differs in base composition from other PRV strains to a relatively large extent.
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Whole-Genome Sequence of a Suid Herpesvirus-1 Strain Isolated from the Brain of a Hunting Dog in Italy. GENOME ANNOUNCEMENTS 2016; 4:4/6/e01333-16. [PMID: 27908993 PMCID: PMC5137407 DOI: 10.1128/genomea.01333-16] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Suid herpesvirus-1 (SHV-1), a DNA virus of the family Herpesviridae, causes a severe and fatal disease in a wide range of mammals. Here, we report the whole-genome sequence of an SHV-1 isolated in Italy in 2014 from the brain of a hunting dog that suffered from an acute and severe disease.
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