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Ko JCK, Choi YWY, Poon ESK, Wyre N, Sin SYW. Prevalence, genotypes, and infection risk factors of psittacine beak and feather disease virus and budgerigar fledgling disease virus in captive birds in Hong Kong. Arch Virol 2024; 169:91. [PMID: 38578455 PMCID: PMC10997714 DOI: 10.1007/s00705-024-06017-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Accepted: 02/13/2024] [Indexed: 04/06/2024]
Abstract
Psittacine beak and feather disease virus (PBFDV) and budgerigar fledgling disease virus (BFDV) are significant avian pathogens that threaten both captive and wild birds, particularly parrots, which are common hosts. This study involved sampling and testing of 516 captive birds from households, pet shops, and an animal clinic in Hong Kong for PBFDV and BFDV. The results showed that PBFDV and BFDV were present in 7.17% and 0.58% of the samples, respectively. These rates were lower than those reported in most parts of Asia. Notably, the infection rates of PBFDV in pet shops were significantly higher compared to other sources, while no BFDV-positive samples were found in pet shops. Most of the positive samples came from parrots, but PBFDV was also detected in two non-parrot species, including Swinhoe's white-eyes (Zosterops simplex), which had not been reported previously. The ability of PBFDV to infect both psittacine and passerine birds is concerning, especially in densely populated urban areas such as Hong Kong, where captive flocks come into close contact with wildlife. Phylogenetic analysis of the Cap and Rep genes of PBFDV revealed that the strains found in Hong Kong were closely related to those in Europe and other parts of Asia, including mainland China, Thailand, Taiwan, and Saudi Arabia. These findings indicate the presence of both viruses among captive birds in Hong Kong. We recommend implementing regular surveillance for both viruses and adopting measures to prevent contact between captive and wild birds, thereby reducing the transmission of introduced diseases to native species.
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Affiliation(s)
- Jackie Cheuk Kei Ko
- School of Biological Sciences, The University of Hong Kong, Pok Fu Lam Road, Hong Kong, China
| | - Yannes Wai Yan Choi
- School of Biological Sciences, The University of Hong Kong, Pok Fu Lam Road, Hong Kong, China
| | - Emily Shui Kei Poon
- School of Biological Sciences, The University of Hong Kong, Pok Fu Lam Road, Hong Kong, China
| | - Nicole Wyre
- Zodiac Pet & Exotic Hospital, 101A-103A Victoria Centre, 15 Watson Road, Fortress Hill, Hong Kong, China
| | - Simon Yung Wa Sin
- School of Biological Sciences, The University of Hong Kong, Pok Fu Lam Road, Hong Kong, China.
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Fu H, Zhao M, Chen S, Huang Y, Wan C. Simultaneous detection and differentiation of DuCV-1 and DuCV-2 by high-resolution melting analysis. Poult Sci 2024; 103:103566. [PMID: 38417341 PMCID: PMC10907865 DOI: 10.1016/j.psj.2024.103566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 02/05/2024] [Accepted: 02/12/2024] [Indexed: 03/01/2024] Open
Abstract
Birds infected with duck circovirus (DuCV) can potentially cause immunosuppression by damaging lymphoid tissues, causing great losses in the duck breeding industry. Duck circovirus can be divided into two genotypes (DuCV-1 and DuCV-2), but simultaneous detection and differentiation of DuCV-1 and DuCV-2 by high-resolution melting (HRM) analysis is still lacking. Here, we designed specific primers according to the sequence characteristics of the newly identified ORF3 gene and then established a PCR-HRM method for the simultaneous detection and differentiation of DuCV-1 and DuCV-2 via high-resolution melting analysis. Our data showed that the established PCR-HRM assay had the advantages of specificity, with the lowest detection limits of 61.9 copies/μL (for DuCV-1) and 60.6 copies/μL (for DuCV-2). The melting curve of the PCR-HRM results indicated that the amplification product was specific, with no cross-reaction with common waterfowl origin pathogens and a low coefficient of variation less than 1.50% in both intra-batch and inter-batch repetitions, indicating the advantages of repeatability. We found that the percentage of DuCV-2-positive ducks was higher than that of DuCV-1-positive ducks, with 8.62% rate of DuCV-1 and DuCV-2 coinfection. In addition, we found DuCV-2-positive in geese firstly. In conclusion, this study provides a candidate PCR-HRM assay for the detection and accurate differentiation of DuCV-1 and DuCV-2 infection, which will help us for further epidemiological surveillance of DuCVs.
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Affiliation(s)
- Huanru Fu
- Institute of Animal Husbandry and Veterinary Medicine/Fujian Key Laboratory for Avian Diseases Control and Prevention/Fujian Animal Diseases Control Technology Development Centre, Fujian Academy of Agricultural Sciences, Fuzhou 350013, China; School of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Min Zhao
- Institute of Animal Husbandry and Veterinary Medicine/Fujian Key Laboratory for Avian Diseases Control and Prevention/Fujian Animal Diseases Control Technology Development Centre, Fujian Academy of Agricultural Sciences, Fuzhou 350013, China; School of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Shuyu Chen
- Institute of Animal Husbandry and Veterinary Medicine/Fujian Key Laboratory for Avian Diseases Control and Prevention/Fujian Animal Diseases Control Technology Development Centre, Fujian Academy of Agricultural Sciences, Fuzhou 350013, China; School of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Yu Huang
- Institute of Animal Husbandry and Veterinary Medicine/Fujian Key Laboratory for Avian Diseases Control and Prevention/Fujian Animal Diseases Control Technology Development Centre, Fujian Academy of Agricultural Sciences, Fuzhou 350013, China
| | - Chunhe Wan
- Institute of Animal Husbandry and Veterinary Medicine/Fujian Key Laboratory for Avian Diseases Control and Prevention/Fujian Animal Diseases Control Technology Development Centre, Fujian Academy of Agricultural Sciences, Fuzhou 350013, China.
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Fu PF, Wang YH, Liu G, Wang DM, Huang WW, Guo DQ, Li XY, Liu P, Wei MX, Lu M, Hong J. First molecular detection and genetic characterization of porcine circovirus 4 in the Gansu Province of China. PLoS One 2024; 19:e0293135. [PMID: 38315677 PMCID: PMC10843115 DOI: 10.1371/journal.pone.0293135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Accepted: 10/06/2023] [Indexed: 02/07/2024] Open
Abstract
Since its initial discovery in the Hunan province of China, genomic DNA of porcine circovirus 4 (PCV4) has been detected in pigs across multiple provinces in China, as well as in South Korea. However, the prevalence of porcine circovirus type 4 in Gansu Province, China, remains unknown. To address this gap, we undertook an extensive study where we gathered 121 clinical samples displaying diverse clinical manifestations from pig farms in Gansu Province between 2022 and 2023. Employing a real-time fluorescence quantification method, we identified the presence of PCV4 genome. Out of the 121 clinical samples analyzed, 13 samples tested positive for PCV4, resulting in a positive rate of 10.74% (13/121). This finding confirms the presence of PCV4 in pig farms within Gansu Province, China. Furthermore, we successfully sequenced and analyzed the complete genomes of two distinct PCV4 strains, comparing them with 60 reference sequences archived in the GenBank database. The results revealed a high nucleotide homology (98.2-98.8%) between the strains obtained in this study and the PCV4 reference strains, indicating a relatively low evolutionary rate of the PCV4 genome. Phylogenetic analysis revealed that two strains in this study belong to PCV4a and PCV4c. As far as we know, this study marks the inaugural report on the molecular identification and genomic attributes of PCV4 in Gansu Province, China, offering valuable insights for devising preventive and control strategies against this emerging virus.
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Affiliation(s)
- Peng-Fei Fu
- College of Life Science and Engineering, Henan University of Urban Construction, Pingdingshan, Henan Province, China
| | - Yan-Hong Wang
- College of Life Science and Engineering, Henan University of Urban Construction, Pingdingshan, Henan Province, China
| | - Guo Liu
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, Gansu Province, China
| | - Dong-Mei Wang
- College of Life Science and Engineering, Henan University of Urban Construction, Pingdingshan, Henan Province, China
| | - Wei-Wei Huang
- College of Life Science and Engineering, Henan University of Urban Construction, Pingdingshan, Henan Province, China
| | - Duan-Qiang Guo
- College of Life Science and Engineering, Henan University of Urban Construction, Pingdingshan, Henan Province, China
| | - Xin-Yang Li
- College of Life Science and Engineering, Henan University of Urban Construction, Pingdingshan, Henan Province, China
| | - Ping Liu
- College of Life Science and Engineering, Henan University of Urban Construction, Pingdingshan, Henan Province, China
| | - Meng-Xiang Wei
- College of Life Science and Engineering, Henan University of Urban Construction, Pingdingshan, Henan Province, China
| | - Min Lu
- College of Life Science and Engineering, Henan University of Urban Construction, Pingdingshan, Henan Province, China
| | - Jun Hong
- College of Life Science and Engineering, Henan University of Urban Construction, Pingdingshan, Henan Province, China
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Lei X, Wang A, Zhu S, Wu S. From obscurity to urgency: a comprehensive analysis of the rising threat of duck circovirus. Vet Res 2024; 55:12. [PMID: 38279181 PMCID: PMC10811865 DOI: 10.1186/s13567-024-01265-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Accepted: 12/15/2023] [Indexed: 01/28/2024] Open
Abstract
Duck circovirus (DuCV) is a small, nonenveloped, single-stranded DNA virus with immunosuppressive effects on ducks that leads to slow growth and elevated mortality following mixed infections. Its infection manifests as feather loss, slow growth, swelling of respiratory tissue, and damage to immune organs in ducks. Although single infections with DuCV do not cause noticeable clinical symptoms, its ability to compromise the immune system and facilitate infections caused by other pathogens poses a serious threat to duck farming. Given the prevalence of this disease and the increasing infection rates in recent years, which have resulted in significant economic losses in duck farming and related sectors, research and control of DuCV infection have become especially important. The aim of this review is to provide a summary of the current understanding of DuCV, serving as a reference for subsequent research and effective control of the virus. We focus mainly on the genetics and molecular biology, epidemiology, clinical symptoms, and pathology of DuCV. Additionally, topics such as the isolation and culture of the virus, vaccines and antiviral therapies, diagnostics, and preventative measures are discussed.
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Affiliation(s)
- Xinnuo Lei
- Jiangsu Key Laboratory for High-Tech Research and Development of Veterinary Biopharmaceuticals, Engineering Technology Research Center for Modern Animal Science and Novel Veterinary Pharmaceutic Development, Jiangsu Agri-Animal Husbandry Vocational College, Taizhou, 225300, Jiangsu, China
| | - Anping Wang
- Jiangsu Key Laboratory for High-Tech Research and Development of Veterinary Biopharmaceuticals, Engineering Technology Research Center for Modern Animal Science and Novel Veterinary Pharmaceutic Development, Jiangsu Agri-Animal Husbandry Vocational College, Taizhou, 225300, Jiangsu, China
| | - Shanyuan Zhu
- Jiangsu Key Laboratory for High-Tech Research and Development of Veterinary Biopharmaceuticals, Engineering Technology Research Center for Modern Animal Science and Novel Veterinary Pharmaceutic Development, Jiangsu Agri-Animal Husbandry Vocational College, Taizhou, 225300, Jiangsu, China.
| | - Shuang Wu
- Jiangsu Key Laboratory for High-Tech Research and Development of Veterinary Biopharmaceuticals, Engineering Technology Research Center for Modern Animal Science and Novel Veterinary Pharmaceutic Development, Jiangsu Agri-Animal Husbandry Vocational College, Taizhou, 225300, Jiangsu, China.
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Saechin A, Suksai P, Sariya L, Mongkolphan C, Tangsudjai S. Species and seasonality can affect recent trends in beak and feather disease virus prevalence in captive psittacine birds. Acta Trop 2024; 249:107071. [PMID: 37956820 DOI: 10.1016/j.actatropica.2023.107071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Revised: 09/27/2023] [Accepted: 11/10/2023] [Indexed: 11/15/2023]
Abstract
Beak and feather disease virus (BFDV) is globally distributed in psittacine birds. BFDV is considered a key threat to biodiversity because it has the ability to transmit and shift between host species. Data from captive psittacine birds can help to identify potential risk factors for viral transmission management. Generalized Linear Models (GLM) were used to examine the association of sample type, species, and season on the prevalence of BFDV in captive exotic birds in Thailand. In this study, the overall prevalence of BFDV was 8.2 %, with 346 of 4243 birds being positive. The prevalence in feather samples (12.1 %) and pooled (dried blood and feather) samples (15.4 %) was higher than that in the dried blood samples (4.8 %). A GLM test revealed that the sample type, species, and season were significant factors influencing the prevalence of BFDV. Based on the model, two species (blue-eyed cockatoo; Cacatua ophthalmica, and ring-necked parakeet; Psittacula krameri) were associated with higher BFDV prevalence. By studying the seasonal BFDV prevalence, we can gather important insights into the environmental factors that contribute to its spread. The higher prevalence observed during the wet season suggest a possible affect between BFDV prevalence and environmental factors such as heavy rainfall and humidity. In conclusion, our analysis of the trends in BFDV prevalence offers valuable insights into the prevalence or distribution of BFDV in the studied population. By monitoring BFDV prevalence, identifying high-risk species, and understanding seasonal patterns, we can develop targeted management approaches to control the spread of the virus. This information is crucial for mitigating the impact of BFDV on aviculture.
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Affiliation(s)
- A Saechin
- Monitoring and Surveillance Center for Zoonotic Diseases in Wildlife and Exotic Animals, Faculty of Veterinary Science, Mahidol University, Nakhon Pathom, Thailand
| | - P Suksai
- Monitoring and Surveillance Center for Zoonotic Diseases in Wildlife and Exotic Animals, Faculty of Veterinary Science, Mahidol University, Nakhon Pathom, Thailand
| | - L Sariya
- Monitoring and Surveillance Center for Zoonotic Diseases in Wildlife and Exotic Animals, Faculty of Veterinary Science, Mahidol University, Nakhon Pathom, Thailand
| | - C Mongkolphan
- Monitoring and Surveillance Center for Zoonotic Diseases in Wildlife and Exotic Animals, Faculty of Veterinary Science, Mahidol University, Nakhon Pathom, Thailand
| | - S Tangsudjai
- Monitoring and Surveillance Center for Zoonotic Diseases in Wildlife and Exotic Animals, Faculty of Veterinary Science, Mahidol University, Nakhon Pathom, Thailand.
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Park S, Kim S, Jeong T, Oh B, Lim CW, Kim B. Prevalence of porcine circovirus type 2 and type 3 in slaughtered pigs and wild boars in Korea. Vet Med Sci 2024; 10:e1329. [PMID: 38050451 PMCID: PMC10766032 DOI: 10.1002/vms3.1329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 09/25/2023] [Accepted: 11/07/2023] [Indexed: 12/06/2023] Open
Abstract
BACKGROUND Porcine circovirus, a non-enveloped single-stranded DNA virus belonging to the genus Circovirus of the family Circoviridae, is a major pathogen of porcine circovirus-associated disease. Porcine circovirus 3, a novel porcine circovirus, has been identified in individuals with clinical symptoms. OBJECTIVES The prevalence of porcine circovirus 2 and porcine circovirus 3 and the confirmation of diagnosis of this emerging viral disease have not been fully studied yet. Therefore, the objective of the present study was to investigate the prevalence of porcine circovirus 2 and porcine circovirus 3 in slaughtered pigs and wild boars in Korea between 2018 and 2019. METHODS Lungs and hilar lymph nodes of healthy pigs slaughtered in slaughterhouses and captured wild pigs were collected, and viruses were detected by multiplex quantitative polymerase chain reaction and two staining methods (in situ hybridization and immunohistochemistry) to confirm the presence of porcine circovirus 2 and porcine circovirus 3. RESULTS Positive rates of porcine circovirus 2 in lungs and hilar lymph nodes were 78.1% (75/96) and 89.5% (86/96) in slaughtered pigs, respectively. They were 18.0% (30/167) and 46.3% (24/55) in wild boars, respectively. Positive rates of porcine circovirus 3 in lungs and hilar lymph nodes were 30.2% (29/96) and 13.5% (13/96) in slaughtered pigs, respectively. They were 4.2% (7/167) and 5.5% (3/55) in wild boars, respectively. At the farm level, positive rates of porcine circovirus 2 and porcine circovirus 3 were 97.9% (47/48) and 54.2% (26/48), respectively. Positive rates of porcine circovirus 2 and porcine circovirus 3 decreased in spring. Immunohistochemistry and in situ hybridization confirmed the presence of porcine circovirus 2 and porcine circovirus 3 in lungs, but not porcine circovirus 3 in the hilar lymph nodes. CONCLUSION These results suggest that the prevalence of porcine circovirus 2 and porcine circovirus 3 might vary depending on the season and the type of sample. Wild boars might play a role in the epidemiology of porcine circovirus 2 and porcine circovirus 3 in South Korea. Continuous surveillance and further study are needed for this emerging disease.
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Affiliation(s)
- Seok‐Chan Park
- College of Veterinary Medicine and Biosafety Research Institute, Jeonbuk National UniversityIksanRepublic of Korea
| | - Suwon Kim
- College of Veterinary Medicine and Biosafety Research Institute, Jeonbuk National UniversityIksanRepublic of Korea
| | - Tae‐Won Jeong
- HLB BIOSTEP Co., Ltd., Research CenterIncheonRepublic of Korea
| | - Byungkwan Oh
- College of Veterinary Medicine and Biosafety Research Institute, Jeonbuk National UniversityIksanRepublic of Korea
| | - Chae Woong Lim
- College of Veterinary Medicine and Biosafety Research Institute, Jeonbuk National UniversityIksanRepublic of Korea
| | - Bumseok Kim
- College of Veterinary Medicine and Biosafety Research Institute, Jeonbuk National UniversityIksanRepublic of Korea
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Molini U, Coetzee LM, Christians V, Hemberger MY, Chiwome B, Amukwaya M, Khaiseb S, Cattoli G, Dundon WG, Franzo G. High detection frequency and genetic diversity of porcine circovirus 3 (PCV-3) in Namibian backyard farms and warthogs. Acta Trop 2024; 249:107085. [PMID: 38016512 DOI: 10.1016/j.actatropica.2023.107085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 11/02/2023] [Accepted: 11/25/2023] [Indexed: 11/30/2023]
Abstract
Since its first identification in 2015, porcine circovirus 3 (PCV-3) has been reported worldwide with a high frequency and in the presence of several clinical conditions, although its impact on pig health and productivity is still debated. Data on the presence of PCV-3 in Africa are, however, limited. A previous study performed on commercial pigs in Namibia failed to identify the pathogen. In the present study, the viral circulation in backyard farms, characterised by lower biosecurity measures and frequent animal exchange between farms, was assessed. The susceptibility of warthogs to PCV-3 infection and their potential epidemiological role were also evaluated. Tonsils from 77 pigs from backyard piggeries and 55 warthogs were collected in different regions of Namibia and tested by PCR. Positive samples were sequenced and compared to PCV-3 strains circulating globally. Forty-two out of 77 pigs (54.54 %) and 12 out of 55 warthogs (21.82 %) tested positive, demonstrating the presence of PCV-3 in the country and suggesting that the high biosecurity measures implemented in the commercial farms that previously tested negative for PCV-3 probably prevented viral introduction. The partial ORF2 gene was successfully sequenced in samples from 27 pigs and 6 warthogs. Genetically, the identified strains were part of 3 distinct groups which included both backyard pigs and warthogs from different regions of Namibia. There is also evidence for the occurrence of multiple introduction events most likely from Asian countries, either directly into Namibia or through other African countries. Considering the strict Namibian regulations on live animal importation, understanding the source of viral introduction is challenging, although semen importation or the habit of feeding backyard pigs with human food waste might have played a role. Pig exchanges between farms for breeding purposes or wildlife movements could also have been involved in PCV-3 dispersal within Namibia. Despite the significant advances in the field, further studies should be undertaken to properly understand PCV-3 epidemiology in Namibia and its impact on pig productivity and wildlife health.
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Affiliation(s)
- Umberto Molini
- Faculty of Health Sciences and Veterinary Medicine, School of Veterinary Medicine, Neudamm Campus, University of Namibia, Private Bag 13301, Windhoek 9000, Namibia
| | - Lauren M Coetzee
- Central Veterinary Laboratory (CVL), 24 Goethe Street, Private Bag 18137, Windhoek 9000, Namibia; Faculty of Veterinary Medicine, University of Teramo, Teramo 64100, Italy
| | - Vernon Christians
- Faculty of Health Sciences and Veterinary Medicine, School of Veterinary Medicine, Neudamm Campus, University of Namibia, Private Bag 13301, Windhoek 9000, Namibia
| | - Maria Y Hemberger
- Faculty of Health Sciences and Veterinary Medicine, School of Veterinary Medicine, Neudamm Campus, University of Namibia, Private Bag 13301, Windhoek 9000, Namibia
| | - Bernard Chiwome
- Faculty of Health Sciences and Veterinary Medicine, School of Veterinary Medicine, Neudamm Campus, University of Namibia, Private Bag 13301, Windhoek 9000, Namibia
| | - Maria Amukwaya
- Faculty of Health Sciences and Veterinary Medicine, School of Veterinary Medicine, Neudamm Campus, University of Namibia, Private Bag 13301, Windhoek 9000, Namibia
| | - Siegfried Khaiseb
- Central Veterinary Laboratory (CVL), 24 Goethe Street, Private Bag 18137, Windhoek 9000, Namibia
| | - Giovanni Cattoli
- Department of Nuclear Sciences and Applications, Joint FAO/IAEA Division, Animal Production and Health Laboratory, Animal Production and Health Section, International Atomic Energy Agency, P.O. Box 100, Vienna 1400, Austria
| | - William G Dundon
- Department of Nuclear Sciences and Applications, Joint FAO/IAEA Division, Animal Production and Health Laboratory, Animal Production and Health Section, International Atomic Energy Agency, P.O. Box 100, Vienna 1400, Austria
| | - Giovanni Franzo
- Department. of Animal Medicine, Production and Health, University of Padova, viale dell'Università 16, Legnaro 35020, Italy.
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Wang Y, Yang DA, Zhao K, Laven R, Jiang P, Yang Z. Comparison of four clinical sample types for detection and investigation of PCV3 prevalence in the pig farrowing room. Prev Vet Med 2023; 221:106076. [PMID: 37976967 DOI: 10.1016/j.prevetmed.2023.106076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 10/21/2023] [Accepted: 11/07/2023] [Indexed: 11/19/2023]
Abstract
Porcine circovirus type 3 (PCV3) is a newly described circovirus that has been identified in pig populations across the globe. The virus is associated with multiple diseases including reproductive and systemic diseases. As effective vaccines are lacking, surveillance is crucial for PCV3 control, but there are currently, few side-by-side comparisons of the efficacy of different samples for the detection of PCV3. This study collected four sample types, including colostrum, udder skin wipes, placental umbilical cord blood, and processing fluid from 134 litters in a sow farm from July to September 2021 for PCV3 detection based on quantitative PCR tests. Udder skin wipes showed the highest detection rates (76.9%), while 71.6% of the processing fluid, 49.3% of the placental umbilical cord, and 29.1% of the colostrum samples were positive. Logistic regression analysis suggested that the detection rates of udder skin wipes and processing fluid were similar (odds ratio for processing fluid vs udder skin wipes was 0.76, 95% confidence interval (CI) 0.43-1.32), but the two tests were probably not identifying the same population as infected, as the agreement between the samples was only moderate (Gwet's AC1: 0.65). In this study, we were able to demonstrate that PCV3 was present in the farrowing room throughout the period from birth to weaning using udder skin wipes, although viral load decreased over time. The odds of PCV3 detection in colostrum from 2-parity sows was three times higher (95% CI 1.4-6.8) than that of primiparous sows, while the odds of PCV3 detection in sows with mummified fetuses was 2.7 times higher (95% CI 1.1-6.6) than sows with no mummified fetuses. In conclusion, these results indicate that udder skin wipes have high detection rates in infected animals over the whole period from birth to weaning and would thus be suitable samples for PCV3 surveillance in the farrowing rooms.
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Affiliation(s)
- Yi Wang
- Key Laboratory of Animal Diseases Diagnostic and Immunology, Ministry of Agriculture, MOE International Joint Collaborative Research Laboratory for Animal Health & Food Safety, the Belt and Road International Sci-Tech Innovation Institute of Transboundary Animal Disease Diagnosis and Immunization, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China
| | - Danchen Aaron Yang
- Key Laboratory of Animal Diseases Diagnostic and Immunology, Ministry of Agriculture, MOE International Joint Collaborative Research Laboratory for Animal Health & Food Safety, the Belt and Road International Sci-Tech Innovation Institute of Transboundary Animal Disease Diagnosis and Immunization, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China
| | | | - Richard Laven
- School of Veterinary Science, Massey University, Palmerston North 4442, New Zealand
| | - Ping Jiang
- Key Laboratory of Animal Diseases Diagnostic and Immunology, Ministry of Agriculture, MOE International Joint Collaborative Research Laboratory for Animal Health & Food Safety, the Belt and Road International Sci-Tech Innovation Institute of Transboundary Animal Disease Diagnosis and Immunization, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China
| | - Zhen Yang
- Key Laboratory of Animal Diseases Diagnostic and Immunology, Ministry of Agriculture, MOE International Joint Collaborative Research Laboratory for Animal Health & Food Safety, the Belt and Road International Sci-Tech Innovation Institute of Transboundary Animal Disease Diagnosis and Immunization, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China.
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Reséndiz-Sandoval M, Vázquez-García VA, Contreras-Vega K, Melgoza-González EA, Mata-Haro V, Gimenez-Lirola L, Hernández J. A Retrospective Analysis of Porcine Circovirus Type 3 in Samples Collected from 2008 to 2021 in Mexico. Viruses 2023; 15:2225. [PMID: 38005901 PMCID: PMC10674543 DOI: 10.3390/v15112225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 11/03/2023] [Accepted: 11/06/2023] [Indexed: 11/26/2023] Open
Abstract
Porcine circovirus type 3 (PCV3) is a nonenveloped virus of the Circoviridae family. This virus has been identified in pigs of different ages and pigs with several clinical manifestations of the disease or even in apparently healthy pigs. While PCV3 was first reported in 2015, several retrospective studies have reported the virus before that year. The earliest report indicates that PCV3 has been circulated in swine farms since 1996. In this study, we evaluated the presence of PCV3 in samples collected in Mexico in 2008, 2015, 2020, and 2021. This study assessed PCV3 DNA by qPCR and antibodies against CAP protein by indirect ELISA. The results showed that PCV3 (DNA and anti-CAP antibodies) was detected in the samples collected from 2008 to 2021. The highest prevalence was in 2008 (100%), and the lowest was in 2015 (negative). Genetic analysis of ORF2 showed that the virus identified belonged to genotype a, as most of the viruses identified thus far. PCV3 was detected in samples from piglets with respiratory signs and growth retardation, sows with reproductive failure, or asymptomatic piglets and sows. Pigs with respiratory signs, growth retardation, or reproductive failure had a higher prevalence of antibodies and qPCR-positive samples. In conclusion, this study showed that PCV3 has been circulating in Mexico since 2008 and that PCV3 DNA and antibodies were more prevalent in samples from pigs with clinical manifestations of diseases.
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Affiliation(s)
- Mónica Reséndiz-Sandoval
- Laboratorio de Inmunología, Centro de Investigación en Alimentación y Desarrollo, A.C., Hermosillo 83304, Sonora, Mexico; (M.R.-S.); (V.A.V.-G.); (K.C.-V.); (E.A.M.-G.)
| | - Verónica A. Vázquez-García
- Laboratorio de Inmunología, Centro de Investigación en Alimentación y Desarrollo, A.C., Hermosillo 83304, Sonora, Mexico; (M.R.-S.); (V.A.V.-G.); (K.C.-V.); (E.A.M.-G.)
| | - Kenneth Contreras-Vega
- Laboratorio de Inmunología, Centro de Investigación en Alimentación y Desarrollo, A.C., Hermosillo 83304, Sonora, Mexico; (M.R.-S.); (V.A.V.-G.); (K.C.-V.); (E.A.M.-G.)
| | - Edgar A. Melgoza-González
- Laboratorio de Inmunología, Centro de Investigación en Alimentación y Desarrollo, A.C., Hermosillo 83304, Sonora, Mexico; (M.R.-S.); (V.A.V.-G.); (K.C.-V.); (E.A.M.-G.)
| | - Verónica Mata-Haro
- Laboratorio de Microbiología e Inmunología, Centro de Investigación en Alimentación y Desarrollo, A.C., Hermosillo 83304, Sonora, Mexico;
| | - Luis Gimenez-Lirola
- Department of Veterinary Diagnostic and Production Animal Medicine, College of Veterinary Medicine, Iowa State University, Ames, IA 50011, USA
| | - Jesús Hernández
- Laboratorio de Inmunología, Centro de Investigación en Alimentación y Desarrollo, A.C., Hermosillo 83304, Sonora, Mexico; (M.R.-S.); (V.A.V.-G.); (K.C.-V.); (E.A.M.-G.)
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10
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Peng Q, Shi J, Lang Y, Zhu Y, Huang X, Cao S, Yan Q, Zhao S. Phylogenetic Analysis and Serological Investigation of Porcine Circovirus Indicates Frequent Infection with Various Subtypes. Int J Mol Sci 2023; 24:15850. [PMID: 37958833 PMCID: PMC10649267 DOI: 10.3390/ijms242115850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 10/16/2023] [Accepted: 10/17/2023] [Indexed: 11/15/2023] Open
Abstract
Porcine circoviruses (PCVs) are notorious for triggering severe diseases in pigs and causing serious economic losses to the swine industry. In the present study, we undertook a comprehensive approach for the investigation of PCV prevalence, including the phylogenetic analysis of obtained PCV sequences, the determination of major circulating genotypes and serological screening based on different recombinant Cap proteins with specific immunoreactivity. Epidemiological surveillance data indicate that PCV2d and PCV3a are widely distributed in Southwest China, while PCV4 has only sporadic circulation. Meanwhile, serological investigations showed high PCV2 antibody positivity in collected serum samples (>50%), followed by PCV4 (nearly 50%) and PCV3 (30-35%). The analysis supports different circulation patterns of PCV2, PCV3 and PCV4 and illustrates the PCV2/PCV3 genetic evolution characteristics on a nationwide basis. Taken together, our findings add up to the current understanding of PCV epidemiology and provide new tools and insight for PCV antiviral intervention.
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Affiliation(s)
- Qianling Peng
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China
| | - Jiqiang Shi
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China
| | - Yifei Lang
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China
| | - Yulan Zhu
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China
| | - Xiaobo Huang
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China
| | - Sanjie Cao
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China
| | - Qigui Yan
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China
| | - Shan Zhao
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China
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11
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Abstract
The pig industry is growing rapidly in India and contributes a major share of growth in the livestock sector. Over the last few years, there is a gradual increase in the adoption of pigs for production by economically weaker sections of the country. However, this production is affected by many respiratory diseases which are responsible for significant economic loss. The occurrence and impact of these diseases are still under-documented. The four important pathogens including porcine circovirus type 2 (PCV2), porcine reproductive and respiratory syndrome virus (PRRSV), swine influenza A viruses (SIV) and classical swine fever virus (CSFV) are documented here. These diseases are highly devastating in nature and frequent outbreaks have been reported from different parts of the country. The rapid and specific diagnosis, effective prevention and control measures are required for the eradication of these diseases which is urgently required for the growth of the pig industry. This review highlights the prevalence, epidemiology, diagnostics and information gaps on important respiratory viral pathogens of pigs reported from different parts of India. This review also emphasizes the importance of these viral diseases and the urgent need to develop vaccines and effective measures for the eradication of these diseases.
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Affiliation(s)
- Neha Singh
- College of Veterinary Sciences, Lala Lajpat Rai University of Veterinary and Animal Science (LUVAS), Hisar, India
| | - Kanisht Batra
- College of Veterinary Sciences, Lala Lajpat Rai University of Veterinary and Animal Science (LUVAS), Hisar, India
| | - Deepika Chaudhary
- College of Veterinary Sciences, Lala Lajpat Rai University of Veterinary and Animal Science (LUVAS), Hisar, India
| | - Monika Punia
- Department of Biotechnology, Ch. Devi Lal University, Sirsa, India
| | - Aman Kumar
- College of Veterinary Sciences, Lala Lajpat Rai University of Veterinary and Animal Science (LUVAS), Hisar, India
| | - Narender Singh Maan
- College of Veterinary Sciences, Lala Lajpat Rai University of Veterinary and Animal Science (LUVAS), Hisar, India
| | - Sushila Maan
- College of Veterinary Sciences, Lala Lajpat Rai University of Veterinary and Animal Science (LUVAS), Hisar, India
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12
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Dei Giudici S, Mura L, Bonelli P, Hawko S, Angioi PP, Sechi AM, Denti S, Sulas A, Burrai GP, Madrau MP, Antuofermo E, Oggiano A. Evidence of Porcine Circovirus Type 2 (PCV2) Genetic Shift from PCV2b to PCV2d Genotype in Sardinia, Italy. Viruses 2023; 15:2157. [PMID: 38005836 PMCID: PMC10674684 DOI: 10.3390/v15112157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 10/23/2023] [Accepted: 10/24/2023] [Indexed: 11/26/2023] Open
Abstract
Porcine Circovirus type 2 (PCV2) is the etiological agent of a disease syndrome named Porcine Circovirus disease (PCVD), representing an important threat for the pig industry. The increasing international trade of live animals and the development of intensive pig farming seem to have sustained the spreading of PCVD on a global scale. Recent classification criteria allowed the identification of nine different PCV2 genotypes (PCV2a-i). PCV2a was the first genotype detected with the highest frequency from the late 1990s to 2000, which was then superseded by PCV2b (first genotype shift). An ongoing genotype shift is now determining increasing prevalence rates of PCV2d, in replacement of PCV2b. In Italy, a complete genotype replacement was not evidenced yet. The present study was carried out on 369 samples originating from domestic pigs, free-ranging pigs, and wild boars collected in Sardinia between 2020 and 2022, with the aim to update the last survey performed on samples collected during 2009-2013. Fifty-seven complete ORF2 sequences were obtained, and the phylogenetic and network analyses evidenced that 56 out of 57 strains belong to the PCV2d genotype and only one strain to PCV2b, thus showing the occurrence of a genotype shift from PCV2b to PCV2d in Sardinia.
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Affiliation(s)
- Silvia Dei Giudici
- Department of Animal Health, Istituto Zooprofilattico Sperimentale della Sardegna, 07100 Sassari, Italy
| | - Lorena Mura
- Department of Animal Health, Istituto Zooprofilattico Sperimentale della Sardegna, 07100 Sassari, Italy
| | - Piero Bonelli
- Department of Animal Health, Istituto Zooprofilattico Sperimentale della Sardegna, 07100 Sassari, Italy
| | - Salwa Hawko
- Department of Veterinary Medicine, University of Sassari, 07100 Sassari, Italy
| | - Pier Paolo Angioi
- Department of Animal Health, Istituto Zooprofilattico Sperimentale della Sardegna, 07100 Sassari, Italy
| | - Anna Maria Sechi
- Department of Animal Health, Istituto Zooprofilattico Sperimentale della Sardegna, 07100 Sassari, Italy
| | - Stefano Denti
- Department of Animal Health, Istituto Zooprofilattico Sperimentale della Sardegna, 07100 Sassari, Italy
| | - Antonella Sulas
- Department of Animal Health, Istituto Zooprofilattico Sperimentale della Sardegna, 07100 Sassari, Italy
| | | | - Maria Paola Madrau
- Department of Animal Health, Istituto Zooprofilattico Sperimentale della Sardegna, 07100 Sassari, Italy
| | | | - Annalisa Oggiano
- Department of Animal Health, Istituto Zooprofilattico Sperimentale della Sardegna, 07100 Sassari, Italy
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13
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Ghaniei A, Tohidi E. Fluctuation of the prevalence of beak and feather disease virus in captive psittacines in Iran. Arch Virol 2023; 168:274. [PMID: 37851115 DOI: 10.1007/s00705-023-05895-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Accepted: 09/22/2023] [Indexed: 10/19/2023]
Abstract
Beak and feather disease virus (BFDV) is one of the most life-threatening viral agents infecting parrot species. In this study, we investigated fluctuation in the prevalence of beak and feather disease virus (BFDV) in captive psittacines in Iran. Two series of feather samples from different psittacine species, received between July 2019 and July 2021 (n = 1009) and between July 2021 and July 2022 (n = 2020), were examined for the presence of BFDV using the PCR method, and the host species distribution and temporal prevalence of BFDV within populations were calculated. The results showed a total viral prevalence of 26.86% and 26.88% within sample series 1 and 2, respectively. By examining both sample series, the prevalence of BFDV was found to be the highest (P < 0.05) in Nymphicus hollandicus and the lowest (P < 0.05) in Psittacus erithacus, Myiopsitta monachus, Pyrrhura molinae, and Aratinga solstitialis. The viral prevalence was significantly higher (P < 0.05) within the series 1 than the series 2 samples only in Nymphicus hollandicus. Within series 2, the viral prevalence was significant (P < 0.05) in samples from Nymphicus hollandicus collected in March. This study indicates significant prevalence of BFDV in captive Nymphicus hollandicus populations and suggests that the fluctuation in the prevalence of BFDV could be due to the combined influence of host-species and temporal factors.
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Affiliation(s)
- Abolfazl Ghaniei
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Emadodin Tohidi
- Biotechnology Division, Department of Pathobiology, Faculty of Veterinary Medicine, Shiraz University, Shiraz, Iran.
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14
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Holgado-Martín R, Arnal JL, Sibila M, Franzo G, Martín-Jurado D, Risco D, Segalés J, Gómez L. First detection of porcine circovirus 4 (PCV-4) in Europe. Virol J 2023; 20:230. [PMID: 37817216 PMCID: PMC10566016 DOI: 10.1186/s12985-023-02181-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Accepted: 09/08/2023] [Indexed: 10/12/2023] Open
Abstract
Porcine circovirus 4 (PCV-4) is a novel virus recently discovered (2019) in domestic pigs from China, although several studies have proven its circulation since 2008. Later, PCV-4 was also detected in wild boar populations from China and domestic pigs from South Korea and Thailand. Currently, Asia is so far the only continent where this novel virus has been reported; few studies carried out in South America and Europe failed in the attempt to detect it. The objective of this Comment is to communicate the first detection of PCV-4 in Europe, specifically in wild boar and domestic pigs from Mid-South-Western Spain. A retrospective study was carried out on wild boar and domestic pigs, both extensively (Iberian breed) and intensively raised, from Spain and Italy, sampled between 1998 and 2022. PCV-4 genome detection was attempted using different conventional or quantitative real time PCR (qPCR) protocols and some positive results were confirmed through Sanger sequencing. A total of 57 out of 166 (34.3%) Spanish wild boar and 9 out of 223 (4%) Iberian pigs (both geographically located in the Mid-South-Western Spain) were qPCR positive, while the rest of tested animals from North-Eastern Spain and Italy were negative. Partial sequences of Rep or Cap genes of selected samples confirmed the presence of PCV-4. The relatively high prevalence in wild boar and the low one in Iberian pigs from the same areas suggests intra- and interspecific transmission, being the wild boar a potential viral reservoir. The epidemiological and clinical importance of these findings are currently unknown, but guarantees further research on this novel virus.
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Affiliation(s)
- Rocío Holgado-Martín
- Departamento de Medicina Animal, Unidad de Anatomía Patológica y Anatomía Comparada, Facultad de Veterinaria de Cáceres, Universidad de Extremadura, Cáceres, 10003, Spain
| | - José Luís Arnal
- Exopol, Autovaccines and Veterinary Diagnostics, Polígono Río Gállego D/14, San Mateo de Gállego, Zaragoza, 50840, Spain
| | - Marina Sibila
- Programa de Sanitat Animal, IRTA, Centre de Recerca en Sanitat Animal (CReSA), Universitat Autònoma de Barcelona (UAB), Campus, Bellaterra, 08193, Spain
- Unitat Mixta d'Investigació IRTA-UAB en Sanitat Animal, Centre de Recerca en Sanitat Animal (CReSA), Campus de la Universitat Autónoma de Barcelona (UAB), Bellaterra, 08193, Spain
- WOAH collaborating Centre for the Research and Control of Emerging and Re-Emerging Swine Diseases in Europe (IRTA-CReSA), Bellaterra, 08193, Spain
| | - Giovanni Franzo
- Department of Animal Medicine, Production and Health (MAPS), Padua University, Legnaro, 35020, Italy
| | - Desireé Martín-Jurado
- Exopol, Autovaccines and Veterinary Diagnostics, Polígono Río Gállego D/14, San Mateo de Gállego, Zaragoza, 50840, Spain
| | - David Risco
- Departamento de Medicina Animal, Unidad de Anatomía Patológica y Anatomía Comparada, Facultad de Veterinaria de Cáceres, Universidad de Extremadura, Cáceres, 10003, Spain
| | - Joaquim Segalés
- Programa de Sanitat Animal, IRTA, Centre de Recerca en Sanitat Animal (CReSA), Universitat Autònoma de Barcelona (UAB), Campus, Bellaterra, 08193, Spain.
- Unitat Mixta d'Investigació IRTA-UAB en Sanitat Animal, Centre de Recerca en Sanitat Animal (CReSA), Campus de la Universitat Autónoma de Barcelona (UAB), Bellaterra, 08193, Spain.
- Departament de Sanitat i Anatomia Animals, Facultat de Veterinària, Universitat Autònoma de Barcelona, Bellaterra, 08193, Spain.
| | - Luís Gómez
- Departamento de Medicina Animal, Unidad de Anatomía Patológica y Anatomía Comparada, Facultad de Veterinaria de Cáceres, Universidad de Extremadura, Cáceres, 10003, Spain.
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15
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Zhang T, Liu N, Zhang L, Jiang W, Fan X, Wang X, Miao R, Zhai X, Wei L, Jiang S, Jiao P. Research Note: Complete genome cloning and genetic evolution analysis of four Cherry Valley duck circovirus strains in China in 2022. Poult Sci 2023; 102:102920. [PMID: 37473522 PMCID: PMC10371810 DOI: 10.1016/j.psj.2023.102920] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 06/26/2023] [Accepted: 06/29/2023] [Indexed: 07/22/2023] Open
Abstract
In recent years, with the expansion of duck breeding industry in China, the infection rate of duck circovirus (DuCV) in duck and the mixed infection rate of DuCV with other diseases increased significantly, which seriously endanger the development of duck breeding industry. To study the epidemic status of duck circovirus in China, analyze the virus's genetics and evolution, and establish a foundation for scientific prevention and control of duck circovirus, our laboratory collected 4 disease materials preliminarily diagnosed as duck circovirus infections. Conventional PCR was used to amplify 4 strains of duck circovirus with a full length of 1993bp, and their sequences were compared and analyzed. The analysis showed that the 4 DuCVs had typical circovirus characteristics, including 3 major ORFs: ORFV1 (Rep protein), ORFC1 (Cap protein), ORFC2 (apoptosis-related protein), and a stem ring structure. The 4 strains were compared with 22 other reference strains, and the results revealed that all 4 strains belonged to the DuCV-I type represented by the German strain AY228555. Furthermore, the homology between the 4 DuCVs and the reference strains was up to 98.6%, which help us to understand the genotype and genetic variation of DuCV in these regions and provide a reference for the prevention and control of DuCV.
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Affiliation(s)
- Tingting Zhang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, Guangdong Province, China; College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an 271018, Shandong Province, China; Collaborative Innovation Center for the Origin and Control of Emerging Infectious Diseases, College of Basic Medical Sciences, Shandong First Medical University, Tai'an 271000, Shandong Province, China
| | - Nan Liu
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an 271018, Shandong Province, China
| | - Lan Zhang
- Gynecology Department, Tai'an Central Hospital, Tai'an 271099, Shandong Province, China
| | - Wansi Jiang
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an 271018, Shandong Province, China
| | - Xiaole Fan
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an 271018, Shandong Province, China
| | - Xiuyuan Wang
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an 271018, Shandong Province, China
| | - Runchun Miao
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an 271018, Shandong Province, China
| | - Xinyu Zhai
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an 271018, Shandong Province, China
| | - Liangmeng Wei
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an 271018, Shandong Province, China
| | - Shijin Jiang
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an 271018, Shandong Province, China
| | - Peirong Jiao
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, Guangdong Province, China.
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16
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Gong W, Du H, Wang T, Sun H, Peng P, Qin S, Geng H, Zeng Z, Liang W, Ling H, Tu C, Tu Z. Epizootiological surveillance of porcine circoviruses in free-ranging wild boars in China. Virol Sin 2023; 38:663-670. [PMID: 37660950 PMCID: PMC10590700 DOI: 10.1016/j.virs.2023.08.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Accepted: 08/28/2023] [Indexed: 09/05/2023] Open
Abstract
Four species of porcine circoviruses (PCV1-4) have been reported to circulate in Chinese domestic pigs, while the epizootiology of these viruses in free-ranging wild boars in China remains unknown. In this study, tissue and serum samples collected from diseased or apparently healthy wild boars between 2018 and 2020 in 19 regions of China were tested for the prevalence of PCV1-4 infections. Positive rates of PCV1, PCV2, and PCV3 DNA in the tissue samples of Chinese wild boars were 1.6% (4/247), 58.3% (144/247), and 10.9% (27/247) respectively, with none positive for PCV4. Sequence analysis of viral genome showed that the four PCV1 strains distributed in Hunan and Inner Mongolia shared 97.5%-99.6% sequence identity with global distributed reference strains. Comparison of the ORF2 gene sequences showed that 80 PCV2 strains widely distributed in 18 regions shared 79.5%-100% sequence identity with reference strains from domestic pigs and wild boars, and were grouped into PCV2a (7), PCV2b (31) and PCV2d (42). For PCV3, 17 sequenced strains shared 97.2%-100% nucleotide identity at the genomic level and could be divided into PCV3a (3), PCV3b (2) and PCV3c (12) based on the phylogeny of ORF2 gene sequences. Serological data revealed antibody positive rates against PCV1 and PCV2 of 11.4% (19/167) and 53.9% (90/167) respectively. The data obtained in this study improved our understanding about the epidemiological situations of PCVs infection in free-ranging wild boars in China and will be valuable for the prevention and control of diseases caused by PCVs infection.
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Affiliation(s)
- Wenjie Gong
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Jilin University, Changchun, 130062, China; Changchun Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Changchun, 130122, China
| | - Haiying Du
- Changchun Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Changchun, 130122, China
| | - Tong Wang
- Changchun Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Changchun, 130122, China; Jiangsu Co-Innovation Center for the Prevention and Control of Important Animal Infectious Disease and Zoonoses, Yangzhou University, Yangzhou, 225009, China
| | - Heting Sun
- Biological Disaster Control and Prevention Center, National Forestry and Grassland Administration, Shenyang, 110034, China
| | - Peng Peng
- Biological Disaster Control and Prevention Center, National Forestry and Grassland Administration, Shenyang, 110034, China
| | - Siyuan Qin
- Biological Disaster Control and Prevention Center, National Forestry and Grassland Administration, Shenyang, 110034, China
| | - Haidong Geng
- Biological Disaster Control and Prevention Center, National Forestry and Grassland Administration, Shenyang, 110034, China
| | - Zheng Zeng
- Chongqing Animal Disease Prevention and Control Center, Chongqing, 401120, China
| | - Wangwang Liang
- Chongqing Animal Disease Prevention and Control Center, Chongqing, 401120, China
| | - Hongquan Ling
- Chongqing Animal Disease Prevention and Control Center, Chongqing, 401120, China
| | - Changchun Tu
- Changchun Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Changchun, 130122, China; Jiangsu Co-Innovation Center for the Prevention and Control of Important Animal Infectious Disease and Zoonoses, Yangzhou University, Yangzhou, 225009, China.
| | - Zhongzhong Tu
- Changchun Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Changchun, 130122, China.
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17
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Sutherland M, Sarker S. Liver virome of a Little Corella (Cacatua sanguinea) reveals coinfection with a novel parvovirus and two beak and feather disease viruses. Aust Vet J 2023; 101:366-372. [PMID: 37497656 DOI: 10.1111/avj.13271] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Accepted: 07/07/2023] [Indexed: 07/28/2023]
Abstract
Emerging diseases are acknowledged as a growing threat to wildlife, with the continued identification of pathogenic and potentially pathogenic viruses in avian species resulting from ongoing advances in molecular diagnostic techniques. Parvoviruses under the genus Chaphamaparvovirus (subfamily Hamaparvovirinae) are highly divergent. The detection and characterisation of parvoviruses in psittacine birds is limited. This study reports a novel parvovirus, tentatively named psittaciform chaphamaparvovirus 3 (PsChV-3) under the genus Chaphamaparvovirus, identified in an Australian free-ranging little corella (Cacatua sanguinea). The PsChV-3 genome is 4277 bp in length and encompasses four predicted open-reading frames, including two major genes, a nonstructural replicase gene (NS1), and a structural capsid gene (VP1). The NS1 and VP1 genes showed the closest amino acid identities of 78.8% and 69.7%, respectively, with a recently sequenced psittaciform chaphamaparvovirus 2 from Australian Neophema species grass parrots. In addition, the presence of two complete novel beak and feather disease (BFDV) genomes, 1993 and 1868 nt in length, respectively, were detected from the same bird. Both these BFDV genomes contained two bidirectional ORFs encoding the putative Rep and Cap proteins. Phylogenetic analysis showed that the sequenced novel BFDV genomes clustered in a distinct subclade with other BFDVs isolated from Australian cockatoos. This study contributes to the characterisation chaphamaparvoviruses and BFDV in Australian parrots and supports the need for ongoing monitoring and molecular studies into the avian virome in native Australian psittacine bird species.
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Affiliation(s)
- M Sutherland
- The Unusual Pet Vets, 210 Karingal Drive, Frankston, Victoria, 3930, Australia
| | - S Sarker
- Dept. of Microbiology, Anatomy, Physiology, and Pharmacology, School of Agriculture, Biomedicine and Environment, LaTrobe University, Melbourne, Victoria, 3086, Australia
- Biomedical Sciences & Molecular Biology, Australian Institute of Tropical Health and Medicine, College of Public Health, Medical and Veterinary Sciences, James Cook University, Townsville, QLD, 4811, Australia
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18
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Tan CY, Thanawongnuwech R, Arshad SS, Hassan L, Lee CY, Low SE, Fong WCM, Ooi PT. First molecular detection of porcine circovirus type 4 (PCV4) in Malaysia. Trop Biomed 2023; 40:301-306. [PMID: 37897162 DOI: 10.47665/tb.40.3.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/29/2023]
Abstract
Porcine circovirus type 4 (PCV4) is the newest member in the porcine circovirus family, first reported in 2020. To date, the presence of PCV4 has only been reported in China, South Korea and most recently in Thailand. Detection of PCV4 have been reported in various production stages of pigs from piglets, finishers to sows; associated with a myriad of clinical manifestations including porcine dermatitis and nephropathy syndrome (PDNS), postweaning multisystemic wasting syndrome (PMWS), respiratory, enteric and neurological diseases. While successful virus isolation and culture has yet to be reported, pathogenicity of PCV4 has been demonstrated through infectious clone studies. The objective of this study is to investigate the presence of PCV4 in Malaysian porcine population to update the epidemiology of porcine circoviruses in Malaysia. A total of 49 samples from commercial intensive pig farms, abattoir and wild boar population were subjected to conventional polymerase chain reaction assay to detect PCV4 capsid (cap) genome. Resulting cap nucleotide sequences were analyzed for maximum likelihood phylogeny relationship. Results revealed that PCV4 is present in Peninsular Malaysia at a molecular prevalence of 4.08% (2 / 49 samples). Both PCV4 positive samples originated from clinically healthy finishers. Malaysian PCV4 strains were classified as genotype PCV4b, and were found to be phylogenetically distinct from the China, South Korea and Thailand strains. With this latest update of the novel PCV4 in Malaysia, it is clear that more attention needs to be given to the investigation of novel porcine circoviruses (PCV) and management of PCV diseases.
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Affiliation(s)
- C Y Tan
- Department of Veterinary Clinical Studies, Faculty of Veterinary Medicine, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
| | - R Thanawongnuwech
- Department of Veterinary Pathology, Faculty of Veterinary Science, Chulalongkorn University, Pathum Wan, Bangkok 10330, Thailand
| | - S S Arshad
- Department of Veterinary Pathology & Microbiology, Faculty of Veterinary Medicine, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
| | - L Hassan
- Department of Veterinary Laboratory Diagnostics, Faculty of Veterinary Medicine, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
| | - C Y Lee
- Department of Veterinary Clinical Studies, Faculty of Veterinary Medicine, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
| | - S E Low
- Department of Veterinary Clinical Studies, Faculty of Veterinary Medicine, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
| | - W C M Fong
- Department of Veterinary Clinical Studies, Faculty of Veterinary Medicine, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
| | - P T Ooi
- Department of Veterinary Clinical Studies, Faculty of Veterinary Medicine, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
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Kaneko F, Kato M, Ito Y. Porcine circoviruses in wild boars in Nagano Prefecture, Japan. J Vet Med Sci 2023; 85:367-370. [PMID: 36682802 PMCID: PMC10076187 DOI: 10.1292/jvms.22-0034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
We investigated the prevalence of porcine circovirus 2 (PCV2) and 3 (PCV3) in wild boars captured or found dead in Nagano Prefecture in 2020. Based on PCR testing, 21 of 254 (8.3%) wild boars were PCV2-positive and 43 of 256 (16.8%) wild boars were PCV3-positive, 5 of 253 (2.0%) wild boars were both PCV2-positive and PCV3-positive. The frequency of detecting PCV3 in wild boars was significantly higher in adults than in juveniles (P=0.014). The PCV2-positive wild boars were found in all districts except for the North Alps and Hokushin, while PCV3-positive wild boars were found in all districts except for Suwa. This is the first report of PCV2 and PCV3 detected in wild boars in Japan.
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Affiliation(s)
- Fumihiro Kaneko
- Matsumoto Livestock Hygiene Service Center, Nagano, Japan
- Present address: Animal Disease Control and Prevention Office, Nagano, Japan
| | - Masaki Kato
- Matsumoto Livestock Hygiene Service Center, Nagano, Japan
- Present address: Saku Livestock Hygiene Service Center, Nagano, Japan
| | - Yui Ito
- Matsumoto Livestock Hygiene Service Center, Nagano, Japan
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20
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Zhang LH, Wang LQ, Li HX, Zhang HL, Zheng LL, Chen XM, Chen HY. Detection and genetic analysis of porcine circovirus-like virus in pigs with diarrhea between 2016 and 2021 in Henan and Shanxi provinces of China. Arch Virol 2023; 168:76. [PMID: 36709234 DOI: 10.1007/s00705-023-05701-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Accepted: 12/06/2022] [Indexed: 01/29/2023]
Abstract
Porcine circovirus-like virus (PCLV) is a recently discovered virus that may be associated with diarrhea in pigs. To investigate the epidemic profile and genetic characteristics of this virus, 175 clinical samples (141 intestinal samples, 17 blood samples, and 17 fecal samples) were collected from diseased piglets during outbreaks of diarrhea from 33 pig farms in 19 cities of Henan and Shanxi provinces of China between 2016 and 2021 and were screened by PCR for the presence of PCLV. The results showed that the positive rate for PCLV was 32% (56/175) at the sample level, 60.6% (20/33) at the farm level, and 57.9% (11/19) at the city level, which varied from 5.88% to 44.12% between 2016 and 2021. It was also found that PCLV occurred in coinfections with porcine circovirus type 2 (PCV2), PCV3, PCV4, porcine epidemic diarrhea virus, and porcine reproductive and respiratory syndrome virus, but no nucleic acids were detected for transmissible gastroenteritis virus, porcine deltacoronavirus, or porcine rotavirus in piglets with diarrhea. Notably, PCLV was detected in 13 diarrheal piglets from four different farms that were negative for the other porcine viruses. These findings suggest that PCLV may be associated with porcine diarrhea and that it has been circulating in piglets in Henan and Shanxi provinces of China. In addition, the complete genomes of 13 PCLV strains were sequenced and found to share 35.4%-91.0% nucleotide sequence identity with sequences available in the GenBank database. Phylogenetic analysis based on Rep amino acid sequences revealed that the 13 PCLV strains from this study clustered in group 1 and were closely related to eight Chinese PCLV strains, Bo-Circo-like virus CH, American strains 21 and 22, and Hungarian strains 288_4 and 302_4, but they differed genetically from seven other foreign PCLV strains. The whole genome and rep gene of 13 PCLV strains in this study were 72.2%-82% and 83.8%-89.7% identical, respectively, to those of Bo-Circo-like virus strain CH, indicating that PCLV is a novel virus in pigs that may be involved in cross-species transmission. Evidence of a recombination event was found in the rep region of the 13 PCLV strains sequenced. This study enriches the epidemiological data on PCLV infection in pigs in China and lays a foundation for further study on the pathogenesis of PCLV.
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Affiliation(s)
- Liu-Hui Zhang
- Zhengzhou Major Pig Disease Prevention and Control Laboratory, College of Veterinary Medicine, Henan Agricultural University, Zhengdong New District Longzi Lake 15#, Zhengzhou, 450046, People's Republic of China
| | - Lin-Qing Wang
- Zhengzhou Major Pig Disease Prevention and Control Laboratory, College of Veterinary Medicine, Henan Agricultural University, Zhengdong New District Longzi Lake 15#, Zhengzhou, 450046, People's Republic of China
- Department of Life Science, Zhengzhou Normal University, Zhengzhou, 450044, Henan Province, People's Republic of China
| | - Hong-Xuan Li
- Zhengzhou Major Pig Disease Prevention and Control Laboratory, College of Veterinary Medicine, Henan Agricultural University, Zhengdong New District Longzi Lake 15#, Zhengzhou, 450046, People's Republic of China
| | - Hong-Lei Zhang
- Zhengzhou Major Pig Disease Prevention and Control Laboratory, College of Veterinary Medicine, Henan Agricultural University, Zhengdong New District Longzi Lake 15#, Zhengzhou, 450046, People's Republic of China
| | - Lan-Lan Zheng
- Zhengzhou Major Pig Disease Prevention and Control Laboratory, College of Veterinary Medicine, Henan Agricultural University, Zhengdong New District Longzi Lake 15#, Zhengzhou, 450046, People's Republic of China
| | - Xi-Meng Chen
- Zhengzhou Major Pig Disease Prevention and Control Laboratory, College of Veterinary Medicine, Henan Agricultural University, Zhengdong New District Longzi Lake 15#, Zhengzhou, 450046, People's Republic of China.
| | - Hong-Ying Chen
- Zhengzhou Major Pig Disease Prevention and Control Laboratory, College of Veterinary Medicine, Henan Agricultural University, Zhengdong New District Longzi Lake 15#, Zhengzhou, 450046, People's Republic of China.
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21
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Ahaduzzaman M, Nath C, Hossain MS. Evidence of circulation of beak and feather disease virus in captive psittacine and non-psittacine birds in Bangladesh. Arch Virol 2022; 167:2567-2575. [PMID: 36056957 DOI: 10.1007/s00705-022-05579-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Accepted: 07/19/2022] [Indexed: 12/14/2022]
Abstract
Beak and feather disease virus (BFDV) is an emerging pathogen in many parts of the world that is responsible for causing beak and feather disease in birds. Since the virus is highly persistent in the environment and spreads by contact, birds raised in captivity are at a high risk of infection. Breeding, trading, and rearing of captive birds are becoming increasingly popular in many countries, including Bangladesh, increasing the risk of BFDV infection. However, it is unknown whether BFDV is circulating in captive birds in Bangladesh. This study was designed to conduct the first pilot survey to test the hypothesis that BFDV is circulating in Bangladesh. Feather samples were collected from 100 birds of 10 psittacine and two non-psittacine species from a breeding flock, three live-bird markets (LBMs), and two household flocks. Polymerase chain reaction (PCR) was used to detect the rep gene, together with sequencing and phylogenetic analysis. This study confirmed that BFDV is circulating in Bangladesh, with a positivity rate of 37%. The majority (78.38%) of PCR-positive birds were asymptomatic. The detection rate was higher in birds from the breeding flock (54.05%) than in LBMs (37.84%) and household flocks (8.11%) (P = 0.01). No significant variation was observed when considering the species (P = 0.14) and sex (P = 0.75) of the birds. Phylogenetic analysis suggested that the BFDV isolates found in LBMs and household flocks are genetically related to isolates from breeding flocks in the area as well as to many other isolates from different regions of the world. Further research needs to be done to determine the impact of this virus in the wider population.
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Affiliation(s)
- Md Ahaduzzaman
- Department of Medicine and Surgery, Chattogram Veterinary and Animal Sciences University (CVASU), Chattogram, Bangladesh.
| | - Chandan Nath
- Department of Microbiology and Veterinary Public Health, Chattogram Veterinary and Animal Sciences University (CVASU), Chattogram, Bangladesh
| | - Md Saddam Hossain
- Department of Medicine and Surgery, Chattogram Veterinary and Animal Sciences University (CVASU), Chattogram, Bangladesh
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Wang X, Zhang S, Shang H, Wang C, Zhou F, Liu Y, Jiang Y, Gao P, Li N, Liu D, Shen M, Zhu R, Shi Y, Wei K. Evaluation of the antiviral effect of four plant polysaccharides against duck circovirus. Res Vet Sci 2022; 152:446-457. [PMID: 36148714 DOI: 10.1016/j.rvsc.2022.09.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 09/06/2022] [Accepted: 09/09/2022] [Indexed: 11/19/2022]
Abstract
Recently, outbreaks of duck circovirus (DuCV) are frequently occurring worldwide due to secondary infections caused by post infection-induced immunosuppression. Due to a lack of preventive drugs and vaccines, the waterfowl industry losses are ever increasing. In this study, we extracted Astragalus polysaccharides (APS), pine pollen polysaccharides (PPPS), Aloe vera polysaccharides (AVE), and Ficus carica polysaccharides (FCPS) from Astragalus, pine pollen, aloe, and F. carica leaves, respectively. We randomly divided 150 one-day-old Cherry Valley ducks into five groups, which were inoculated with the DuCV solution and orally administered APS, PPPS, AVE, FCPS, and phosphate buffer saline (PBS), respectively. We collected the duck immune organs and serum samples at 8, 16, 24, 32, 40, and 48 days post-infection (dpi). Using clinical symptom analysis, molecular biology experiments, and serological experiments, we proved that plant polysaccharides could (a) improve the duck immunity, (b) reduce the viral load, and (c) mitigate DuCV-induced damage to immune organs, with both APS and PPPS having significant effects. Moreover, we detected viral load and cytokines within the first 8 dpi. Since the body's innate immunity could inhibit viral replication within five days of virus infection, 1-5 dpi was the best treatment time. Among the four polysaccharides showing in vitro anti-apoptotic activity, APS and PPPS significantly inhibited the DuCV infection-induced apoptosis of peripheral blood lymphocytes. Overall, since our findings show APS and PPPS having significant anti-DuCV effects both in vivo and in vitro, they can be promising candidates for preventing DuCV infection in ducks.
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Affiliation(s)
- Xiangkun Wang
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, Taian, China; Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, Taian, China
| | - Shuyu Zhang
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, Taian, China; Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, Taian, China
| | - Hongqi Shang
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, Taian, China; Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, Taian, China
| | - Cheng Wang
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, Taian, China; Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, Taian, China
| | - Fan Zhou
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, Taian, China; Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, Taian, China
| | - Yong Liu
- Shandong Feicheng Animal Husbandry and Veterinary Health Center, Taian, China
| | - Yunxuan Jiang
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, Taian, China; Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, Taian, China
| | - Panpan Gao
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, Taian, China; Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, Taian, China
| | - Ning Li
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, Taian, China; Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, Taian, China
| | - Defeng Liu
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, Taian, China; Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, Taian, China
| | - Mingyue Shen
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, Taian, China; Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, Taian, China
| | - Ruiliang Zhu
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, Taian, China; Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, Taian, China
| | - Youfei Shi
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, Taian, China; Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, Taian, China.
| | - Kai Wei
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, Taian, China; Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, Taian, China.
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Gainor K, Castillo Fortuna Y, Alakkaparambil AS, González W, Malik YS, Ghosh S. Detection and Complete Genome Analysis of Porcine Circovirus 2 (PCV2) and an Unclassified CRESS DNA Virus from Diarrheic Pigs in the Dominican Republic: First Evidence for Predominance of PCV2d from the Caribbean Region. Viruses 2022; 14:v14081799. [PMID: 36016421 PMCID: PMC9415081 DOI: 10.3390/v14081799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 08/08/2022] [Accepted: 08/15/2022] [Indexed: 11/16/2022] Open
Abstract
We report here high rates (47.5%, 48/101) of detection of porcine circovirus 2 (PCV2) in diarrheic pigs from three pig farms in the Dominican Republic. Seventeen of the PCV2 positive samples, representing the three pig farms, different age groups and sampling periods (2020–2021), were amplified for the complete PCV2 genome. Based on analysis of open reading frame 2 and complete genome sequences, the 17 PCV2 strains were assigned to the PCV2d genotype. Significant differences were observed in PCV2 detection rates between the vaccinated (20% (10/50)) and unvaccinated (62.5% (10/16) and 80% (28/35)) farms, corroborating previous observations that PCV2a-based vaccines confer protection against heterologous PCV2 genotypes. The present study is the first to report detection and molecular characterization of PCV2 from the Dominican Republic, warranting large-scale molecular epidemiological studies on PCV2 in pig farms and backyard systems across the country. For the first time, PCV2d was identified as the predominant PCV2 genotype in a study from the Caribbean region, suggesting that a genotype shift from PCV2b to PCV2d might be happening in the Caribbean region, which mirrored the current PCV2 genotype scenario in many other parts of the world. Besides PCV2, we also identified a pigeon circovirus-like virus, and a circular Replication-associated protein (Rep)-encoding single-stranded (CRESS) DNA virus, which was characterized for the complete genome. The CRESS DNA virus shared a similar genomic organization and was related to unclassified CRESSV2 DNA viruses (belonging to the Order Cirlivirales) from porcine feces in Hungary, indicating that related unclassified CRESS DNA viruses are circulating among pigs in different geographical regions, warranting further studies on the epidemiology and biology of these novel viruses.
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Affiliation(s)
- Kerry Gainor
- Department of Biomedical Sciences, Ross University School of Veterinary Medicine, Basseterre P.O. Box 334, Saint Kitts and Nevis
| | - Yussaira Castillo Fortuna
- Department of Biomedical Sciences, Ross University School of Veterinary Medicine, Basseterre P.O. Box 334, Saint Kitts and Nevis
| | - Angeline Steny Alakkaparambil
- Department of Biomedical Sciences, Ross University School of Veterinary Medicine, Basseterre P.O. Box 334, Saint Kitts and Nevis
- Department of Biotechnology, School of Bio Sciences and Technology, Vellore Institute of Technology, Vellore 632014, India
| | - Wendy González
- Epidemiological Surveillance Division, Dirección General de Ganadería, Santo Domingo 10410, Dominican Republic
- School of Veterinary Medicine, Faculty of Agronomic and Veterinary Sciences, Autonomous University of Santo Domingo, Calle Camino de Engombe 10904, Dominican Republic
| | - Yashpal Singh Malik
- College of Animal Biotechnology, Guru Angad Dev Veterinary and Animal Science University, Ludhiana 141012, India
| | - Souvik Ghosh
- Department of Biomedical Sciences, Ross University School of Veterinary Medicine, Basseterre P.O. Box 334, Saint Kitts and Nevis
- Correspondence: or ; Tel.: +1-(869)-4654161 (ext. 401-1202)
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Wu M, Chen Y, Lang W, Qin X, Ruan L, Su M, Lv Q. Genetic Variation Analysis of Porcine Circovirus Type 4 in South China in 2019 to 2021. Viruses 2022; 14:v14081736. [PMID: 36016358 PMCID: PMC9413393 DOI: 10.3390/v14081736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2022] [Accepted: 08/04/2022] [Indexed: 11/16/2022] Open
Abstract
Porcine circovirus type 4 (PCV4) is a novel virus associated with porcine dermatitis and nephropathy syndrome (PDNS)-like signs identified firstly in China in 2019. However, the details of the molecular epidemiology of PCV4 are unclear at this time. A total of forty-two related sequences were selected from the GenBank database to explore the spread of PCV4 and its rule in genetic evolution. Of the selected strains, 41 were from south China in 2019 to 2021 and the other was a foreign representative strain. Phylogenetic tree construction, nucleotide and amino acid (aa) sequence alignment, gene recombination and antigen structure prediction were performed on the collected sequences using bioinformatics softwares. The 42 PCV4 strains were divided into two subgenotypes: PCV4a (35/42) and PCV4b (7/42), according to the constructed genetic evolution tree. PCV4a is the main epidemic strain, and it can be further divided into two different gene clusters: PCV4a-1 (22/35) and PCV4a-2 (13/35). The pairwise comparison analysis showed that the complete genome sequence similarity of the 42 PCV4 strains ranged between 97.9% and 100%, and the aa sequences of the Cap proteins of 42 PCV4 strains had three major heterogenic or hypervariable regions—27–28, 96 and 212—all located near the antigenic epitope of the Cap protein. The results of this study can provide some basis for further studying the spread and epidemic growth of PCV4, and the prevention and control of PCV4 infection in China.
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Affiliation(s)
- Minhui Wu
- College of Biology & Pharmacy, Yulin Normal University, Yulin 537000, China
| | - Yujie Chen
- College of Biology & Pharmacy, Yulin Normal University, Yulin 537000, China
| | - Wen Lang
- College of Biology & Pharmacy, Yulin Normal University, Yulin 537000, China
| | - Xinyun Qin
- College of Biology & Pharmacy, Yulin Normal University, Yulin 537000, China
| | - Lian Ruan
- College of Biology & Pharmacy, Yulin Normal University, Yulin 537000, China
| | - Mengrong Su
- College of Biology & Pharmacy, Yulin Normal University, Yulin 537000, China
| | - Qizhuang Lv
- College of Biology & Pharmacy, Yulin Normal University, Yulin 537000, China
- Guangxi Key Laboratory of Agricultural Resources Chemistry and Biotechnology, Yulin 537000, China
- Correspondence:
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25
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Yang Z, Marthaler DG, Rovira A. Frequency of porcine circovirus 3 detection and histologic lesions in clinical samples from swine in the United States. J Vet Diagn Invest 2022; 34:602-611. [PMID: 35674058 PMCID: PMC9266519 DOI: 10.1177/10406387221099538] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2023] Open
Abstract
Porcine circovirus 3 (PCV3) is widespread in pigs worldwide. Diverse clinical signs and lesions have been associated with PCV3, but the role of PCV3 as a cause of disease in swine remains unclear. We investigated the association of PCV3 with clinical signs and histologic lesions in 730 diagnostic swine cases between February 2016 and January 2018. The cases contained 2,177 samples submitted from 474 sites located in 21 states in the United States. PCR assay results were positive for PCV3 for 577 of 2,177 (27%) samples, 255 of 730 (35%) cases, 181 of 474 (38%) sites, and 17 of 21 (81%) states. We detected PCV3 in 19 of 28 specimen types and in pigs of all ages and clinical presentations, including healthy pigs, with the highest detection rate in adult pigs. PCV3 detection was not associated with respiratory, gastrointestinal, or CNS signs, weight loss, or sudden death. Of 58 types of histologic lesions evaluated, PCV3 detection was associated with myocarditis, cardiac vasculitis, and interstitial pneumonia in growing pigs. A high PCV3 detection rate was observed in aborted fetuses.
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Affiliation(s)
- Zhen Yang
- College of Veterinary Medicine, St Paul, MN, USA
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | | | - Albert Rovira
- College of Veterinary Medicine and Veterinary Diagnostic Laboratory, University of Minnesota, St Paul, MN, USA
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26
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Hao X, Li Y, Chen H, Chen B, Liu R, Wu Y, Xiao X, Zhou P, Li S. Canine Circovirus Suppresses the Type I Interferon Response and Protein Expression but Promotes CPV-2 Replication. Int J Mol Sci 2022; 23:ijms23126382. [PMID: 35742826 PMCID: PMC9224199 DOI: 10.3390/ijms23126382] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 06/02/2022] [Accepted: 06/03/2022] [Indexed: 12/24/2022] Open
Abstract
Canine circovirus (CanineCV) is an emerging virus in canines. Since the first strain of CanineCV was reported in 2012, CanineCV infection has shown a trend toward becoming a global epidemic. CanineCV infection often occurs with coinfection with other pathogens that may aggravate the symptoms of disease in affected dogs. Currently, CanineCV has not been successfully isolated by laboratories, resulting in a lack of clarity regarding its physicochemical properties, replication process, and pathogenic characteristics. To address this knowledge gap, the following results were obtained in this study. First, a CanineCV strain was rescued in F81 cells using infectious clone plasmids. Second, the Rep protein produced by the viral packaging rescue process was found to be associated with cytopathic effects. Additionally, the Rep protein and CanineCV inhibited the activation of the type I interferon (IFN-I) promoter, blocking subsequent expression of interferon-stimulated genes (ISGs). Furthermore, Rep was found to broadly inhibit host protein expression. We speculate that in CanineCV and canine parvovirus type 2 (CPV-2) coinfection cases, CanineCV promotes CPV-2 replication by inducing immunosuppression, which may increase the severity of clinical symptoms.
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Affiliation(s)
- Xiangqi Hao
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (X.H.); (Y.L.); (H.C.); (B.C.); (R.L.); (Y.W.); (X.X.)
- Guangdong Provincial Key Laboratory of Prevention and Control for Severe Clinical Animal Diseases, Guangzhou 510642, China
- Guangdong Provincial Pet Engineering Technology Research Center, Guangzhou 510642, China
| | - Yanchao Li
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (X.H.); (Y.L.); (H.C.); (B.C.); (R.L.); (Y.W.); (X.X.)
- Guangdong Provincial Key Laboratory of Prevention and Control for Severe Clinical Animal Diseases, Guangzhou 510642, China
- Guangdong Provincial Pet Engineering Technology Research Center, Guangzhou 510642, China
| | - Hui Chen
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (X.H.); (Y.L.); (H.C.); (B.C.); (R.L.); (Y.W.); (X.X.)
- Guangdong Provincial Key Laboratory of Prevention and Control for Severe Clinical Animal Diseases, Guangzhou 510642, China
- Guangdong Provincial Pet Engineering Technology Research Center, Guangzhou 510642, China
| | - Bo Chen
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (X.H.); (Y.L.); (H.C.); (B.C.); (R.L.); (Y.W.); (X.X.)
- Guangdong Provincial Key Laboratory of Prevention and Control for Severe Clinical Animal Diseases, Guangzhou 510642, China
- Guangdong Provincial Pet Engineering Technology Research Center, Guangzhou 510642, China
| | - Ruohan Liu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (X.H.); (Y.L.); (H.C.); (B.C.); (R.L.); (Y.W.); (X.X.)
- Guangdong Provincial Key Laboratory of Prevention and Control for Severe Clinical Animal Diseases, Guangzhou 510642, China
- Guangdong Provincial Pet Engineering Technology Research Center, Guangzhou 510642, China
| | - Yidan Wu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (X.H.); (Y.L.); (H.C.); (B.C.); (R.L.); (Y.W.); (X.X.)
- Guangdong Provincial Key Laboratory of Prevention and Control for Severe Clinical Animal Diseases, Guangzhou 510642, China
- Guangdong Provincial Pet Engineering Technology Research Center, Guangzhou 510642, China
| | - Xiangyu Xiao
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (X.H.); (Y.L.); (H.C.); (B.C.); (R.L.); (Y.W.); (X.X.)
- Guangdong Provincial Key Laboratory of Prevention and Control for Severe Clinical Animal Diseases, Guangzhou 510642, China
- Guangdong Provincial Pet Engineering Technology Research Center, Guangzhou 510642, China
| | - Pei Zhou
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (X.H.); (Y.L.); (H.C.); (B.C.); (R.L.); (Y.W.); (X.X.)
- Guangdong Provincial Key Laboratory of Prevention and Control for Severe Clinical Animal Diseases, Guangzhou 510642, China
- Guangdong Provincial Pet Engineering Technology Research Center, Guangzhou 510642, China
- Correspondence: (P.Z.); (S.L.)
| | - Shoujun Li
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (X.H.); (Y.L.); (H.C.); (B.C.); (R.L.); (Y.W.); (X.X.)
- Guangdong Provincial Key Laboratory of Prevention and Control for Severe Clinical Animal Diseases, Guangzhou 510642, China
- Guangdong Provincial Pet Engineering Technology Research Center, Guangzhou 510642, China
- Correspondence: (P.Z.); (S.L.)
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Blanco G, Morinha F, Carrete M, Tella JL. Apparent Lack of Circovirus Transmission from Invasive Parakeets to Native Birds. Int J Environ Res Public Health 2022; 19:ijerph19063196. [PMID: 35328884 PMCID: PMC8953828 DOI: 10.3390/ijerph19063196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 03/04/2022] [Accepted: 03/06/2022] [Indexed: 11/16/2022]
Abstract
The transmission of pathogens to native species has been highlighted as one of the most important impacts of biological invasions. In this study, we evaluated the presence of psittacine beak and feather disease virus (BFDV) and other circoviruses in native bird species cohabiting with invasive populations of wild rose-ringed (Psittacula krameri) and monk parakeets (Myiopsitta monachus) that were found positive for a particular BFDV genotype in Sevilla, southern Spain. None of the 290 individuals from the 18 native bird species captured showed typical signs of disease caused by BFDV. A sample of 79 individuals from 15 native species showed negative results for the presence of the BFDV genotype previously detected in the sympatric invasive parakeets, as well as any other of the circoviruses tested. Although preliminary, this study suggests a lack of circovirus transmission from invasive parakeets to native birds at the study site. Further research is needed to determine if this apparent absence in transmission depends on the BFDV genotype present in the parakeets, which requires additional screening in other invasive and native populations living in sympatry.
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Affiliation(s)
- Guillermo Blanco
- Department of Evolutionary Ecology, National Museum of Natural Sciences (MNCN), Spanish National Research Council (CSIC), José Gutiérrez Abascal 2, 28006 Madrid, Spain
- Correspondence:
| | - Francisco Morinha
- Morinha Lab—Laboratory of Biodiversity and Molecular Genetics, 5000-562 Vila Real, Portugal;
| | - Martina Carrete
- Department of Physical, Chemical and Natural Systems, University Pablo de Olavide, Ctra. de Utrera km. 1, 41013 Sevilla, Spain;
| | - José L. Tella
- Department of Conservation Biology, Estación Biológica de Doñana (CSIC), Avda. Américo Vespucio, 41092 Sevilla, Spain;
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28
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Turlewicz-Podbielska H, Augustyniak A, Pomorska-Mól M. Novel Porcine Circoviruses in View of Lessons Learned from Porcine Circovirus Type 2-Epidemiology and Threat to Pigs and Other Species. Viruses 2022; 14:v14020261. [PMID: 35215854 PMCID: PMC8877176 DOI: 10.3390/v14020261] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2021] [Revised: 01/21/2022] [Accepted: 01/24/2022] [Indexed: 01/20/2023] Open
Abstract
Porcine circovirus type 2 (PCV2) plays a key role in PCV2-associated disease (PCVAD) etiology and has yielded significant losses in the pig husbandry in the last 20 years. However, the impact of two recently described species of porcine circoviruses, PCV3 and PCV4, on the pork industry remains unknown. The presence of PCV3 has been associated with several clinical presentations in pigs. Reproductive failure and multisystemic inflammation have been reported most consistently. The clinical symptoms, anatomopathological changes and interaction with other pathogens during PCV3 infection in pigs indicate that PCV3 might be pathogenic for these animals and can cause economic losses in the swine industry similar to PCV2, which makes PCV3 worth including in the differential list as a cause of clinical disorders in reproductive swine herds. Moreover, subsequent studies indicate interspecies transmission and worldwide spreading of PCV3. To date, research related to PCV3 and PCV4 vaccine design is at early stage, and numerous aspects regarding immune response and virus characteristics remain unknown.
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Ma Z, Liu M, Liu Z, Meng F, Wang H, Cao L, Li Y, Jiao Q, Han Z, Liu S. Epidemiological investigation of porcine circovirus type 2 and its coinfection rate in Shandong province in China from 2015 to 2018. BMC Vet Res 2021; 17:17. [PMID: 33413367 PMCID: PMC7792206 DOI: 10.1186/s12917-020-02718-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Accepted: 12/09/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Porcine circovirus type 2 (PCV2) is one of the crucial swine viral pathogens, caused porcine circovirus associated diseases (PCVAD). Shandong province is one of the most important pork producing areas and bears a considerable economic loss due to PCVAD. However, there is limited information on epidemiology and coinfection rate of PCV2 with other critical swine diseases in this area, such as porcine reproductive and respiratory syndrome virus (PRRSV), classical swine fever virus (CSFV), Pseudorabies virus (PRV), and porcine epidemic diarrhea virus (PEDV). RESULTS Overall, 89.59% serum samples and 36.98% tissue samples were positive for PCV2 specified ELISA and PCR positive for PCV2, respectively. The coinfection rates of PCV2 with PRRSV, PRV, CSFV, and PEDV were 26.73%, 18.37%, 13.06%, and 3.47%, respectively. Moreover, genetic characteristic of PCV2 were analyzed based on the cap genes showing that PCV2d is the dominant sub-genotype circulating in the province. CONCLUSIONS Our findings reveal that PCV2d, as the dominant strain, is prevailing in pig farms in Shandong province at high levels. There was a high frequency of coinfection of PCV2 and PRRSV.
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Affiliation(s)
- Zicheng Ma
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, 271018, Taian, China
| | - Mengda Liu
- Laboratory of Zoonoses, Animal Health and Epidemiology Center, 266032, Qingdao, China
| | - Zhaohu Liu
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, 271018, Taian, China
| | - Fanliang Meng
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, 271018, Taian, China
| | - Hongyu Wang
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, 271018, Taian, China
| | - Longlong Cao
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, 271018, Taian, China
| | - Yan Li
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, 271018, Taian, China
| | - Qiulin Jiao
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, 271018, Taian, China
| | - Zifeng Han
- Emergency Centre for the Control of Transboundary Animal Diseases, Food and Agriculture Organization of the United Nations (FAO), 100600, Beijing, China.
| | - Sidang Liu
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, 271018, Taian, China.
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30
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Mohamed M, El-Sabagh I, Vashi Y, Jagrit V, Elmonem Salem MA, Al-Ramadan MA, Al-Ali AM, Kumar S. Analysis of the beak and feather disease viral genome indicates evidence of multiple introduction events into Saudi Arabia. Virus Res 2020; 295:198279. [PMID: 33387603 DOI: 10.1016/j.virusres.2020.198279] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 11/09/2020] [Accepted: 12/23/2020] [Indexed: 11/19/2022]
Abstract
Psittacine beak and feather disease (PBFD), caused by beak and feather disease virus (BFDV) is a highly contagious disease in wild and captive psittacine populations and has an almost global presence. However, the BFDV infection in Saudi Arabia remains largely unknown. In the present study, we report the full genome sequence of BFDV strains from Saudi Arabia and its genetic diversity. The complete genome sequences were analyzed for 14 BFDV-infected birds representing 6 psittacine species. The complete genome sequence of BFDV strains was compared with 201 previously reported sequences to evaluate their diversity and possible recombination events, if any. Our analysis revealed that newly sequenced BFDV genomes from Saudi Arabia belonged to six different strains. Phylogenetic analysis suggested that the isolated BFDV genomes were highly recombinant with a high degree of diversity. It is evident from the study that psittacine species in Saudi Arabia are at risk from the spread of BFDV. As per the CITES trade database, about 190,000 parrots have been imported to Saudi Arabia since 1975 over a thousand instances. Presumably, during any of these trade events or unregulated trade of birds has predisposed the introduction of BFDV to Saudi Arabia. Understanding the epidemiology of BFDV is necessitated to address the threat posed by the virus to the psittacine population of Saudi Arabia.
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Affiliation(s)
- Mahmoud Mohamed
- Department of Clinical Sciences, College of Veterinary Medicine, King Faisal University, P.O Box: 400, Al-Ahsa, 31982, Saudi Arabia; Department of Avian and Rabbit Medicine, Faculty of Veterinary Medicine, Zagazig University, Egypt
| | - Ibrahim El-Sabagh
- Central Biotechnology Laboratory, College of Veterinary Medicine, King Faisal University, P.O Box: 400, Al-Ahsa, 31982, Saudi Arabia; Department of Virology, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt
| | - Yoya Vashi
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, 781039, Assam, India
| | - Vipin Jagrit
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, 781039, Assam, India
| | - Mohamed Abd Elmonem Salem
- Department of Clinical Sciences, College of Veterinary Medicine, King Faisal University, P.O Box: 400, Al-Ahsa, 31982, Saudi Arabia; Department of Medicine and Infectious Diseases, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt
| | - M A Al-Ramadan
- Veterinary Teaching Hospital, King Faisal University, P.O Box: 400, Al-Ahsa, 31982, Saudi Arabia
| | - Ahmed M Al-Ali
- Central Biotechnology Laboratory, College of Veterinary Medicine, King Faisal University, P.O Box: 400, Al-Ahsa, 31982, Saudi Arabia
| | - Sachin Kumar
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, 781039, Assam, India.
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Gu W, Shi Q, Wang L, Zhang J, Yuan G, Chen S, Zuo Y, Fan J. Detection and phylogenetic analysis of porcine circovirus 3 in part of northern China from 2016 to 2018. Arch Virol 2020; 165:2003-2011. [PMID: 32594321 DOI: 10.1007/s00705-020-04709-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2019] [Accepted: 05/20/2020] [Indexed: 02/07/2023]
Abstract
Porcine circovirus 3 (PCV3) is a recently identified virus that is associated with reproductive failure, porcine dermatitis and nephropathy syndrome, and multi-systemic inflammation. To investigate the molecular epidemic characteristics and genetic evolution of PCV3 in northern China, a commercial TaqMan-based real-time quantitative PCR kit was used to detect PCV3 in 435 tissue specimens collected from pigs with various clinical signs from 105 different swine farms in northern China. The results showed that 48 out of 105 (45.7%) farms and 97 out of 435 (22.3%) samples tested positive for PCV3. Of the 97 PCV3-positive samples, 80 (82.5%) tested positive for other pathogens. PCV3 was found more frequently in pigs with reproductive failure than in those with other clinical signs. This study is the first to detect PCV3 in Tianjin. The complete genome sequences of six PCV3 isolates and the capsid (Cap) protein gene sequences of 11 isolates were determined. Based on the predicted amino acids at positions 24 and 27 of the Cap protein and their evolutionary relationships, the 17 PCV3 strains obtained from northern China and 49 reference strains downloaded from the GenBank database were divided into four major groups (3a-3d). An analysis of selection pressure and polymorphism indicated that the PCV3 Cap protein seems to be evolving under balancing selection, that the population is in dynamic equilibrium, and that no population expansion occurred during the study period. Our results provide new information about the molecular epidemiology and evolution of PCV3.
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Affiliation(s)
- Wenyuan Gu
- College of Veterinary Medicine, Hebei Agricultural University, Baoding, 071001, China
- Animal Diseases Control Center of Hebei, Shijiazhuang, 050053, China
| | - Qiankai Shi
- College of Veterinary Medicine, Hebei Agricultural University, Baoding, 071001, China
| | - Leyi Wang
- Department of Veterinary Clinical Medicine and the Veterinary Diagnostic Laboratory, College of Veterinary Medicine, University of Illinois, Urbana, Illinois, 61802, USA
| | - Jianlou Zhang
- College of Veterinary Medicine, Hebei Agricultural University, Baoding, 071001, China
| | - Guangfu Yuan
- College of Veterinary Medicine, Hebei Agricultural University, Baoding, 071001, China
| | - Shaojie Chen
- College of Veterinary Medicine, Hebei Agricultural University, Baoding, 071001, China
| | - Yuzhu Zuo
- College of Veterinary Medicine, Hebei Agricultural University, Baoding, 071001, China.
| | - Jinghui Fan
- College of Veterinary Medicine, Hebei Agricultural University, Baoding, 071001, China.
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32
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Martens JM, Stokes HS, Berg ML, Walder K, Raidal SR, Magrath MJL, Bennett ATD. Beak and feather disease virus (BFDV) prevalence, load and excretion in seven species of wild caught common Australian parrots. PLoS One 2020; 15:e0235406. [PMID: 32609774 PMCID: PMC7329075 DOI: 10.1371/journal.pone.0235406] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Accepted: 06/15/2020] [Indexed: 12/14/2022] Open
Abstract
Pathogens pose a major risk to wild host populations, especially in the face of ongoing biodiversity declines. Beak and feather disease virus (BFDV) can affect most if not all members of one of the largest and most threatened bird orders world-wide, the Psittaciformes. Signs of disease can be severe and mortality rates high. Its broad host range makes it a risk to threatened species in particular, because infection can occur via spill-over from abundant hosts. Despite these risks, surveillance of BFDV in locally abundant wild host species has been lacking. We used qPCR and haemagglutination assays to investigate BFDV prevalence, load and shedding in seven abundant host species in the wild in south-east Australia: Crimson Rosellas (Platycercus elegans), Eastern Rosellas (Platycercus eximius), Galahs (Eolophus roseicapillus), Sulphur-crested Cockatoos (Cacatua galerita), Blue-winged Parrots (Neophema chrysostoma), Rainbow Lorikeets (Trichoglossus moluccanus) and Red-rumped Parrots (Psephotus haematonotus). We found BFDV infection in clinically normal birds in six of the seven species sampled. We focused our analysis on the four most commonly caught species, namely Crimson Rosellas (BFDV prevalence in blood samples: 41.8%), Sulphur-crested Cockatoos (20.0%), Blue-winged Parrots (11.8%) and Galahs (8.8%). Species, but not sex, was a significant predictor for BFDV prevalence and load. 56.1% of BFDV positive individuals were excreting BFDV antigen into their feathers, indicative of active viral replication with shedding. Being BFDV positive in blood samples predicted shedding in Crimson Rosellas. Our study confirms that BFDV is endemic in our study region, and can inform targeted disease management by providing comparative data on interspecies variation in virus prevalence, load and shedding.
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Affiliation(s)
- Johanne M. Martens
- Centre for Integrative Ecology, School of Life and Environmental Sciences, Deakin University, Waurn Ponds, Victoria, Australia
- * E-mail:
| | - Helena S. Stokes
- Centre for Integrative Ecology, School of Life and Environmental Sciences, Deakin University, Waurn Ponds, Victoria, Australia
| | - Mathew L. Berg
- Centre for Integrative Ecology, School of Life and Environmental Sciences, Deakin University, Waurn Ponds, Victoria, Australia
| | - Ken Walder
- Centre for Molecular and Medical Research, School of Medicine, Deakin University, Waurn Ponds, Victoria, Australia
| | - Shane R. Raidal
- School of Animal and Veterinary Sciences, Faculty of Science, Charles Sturt University, Wagga Wagga, Australia
| | | | - Andy T. D. Bennett
- Centre for Integrative Ecology, School of Life and Environmental Sciences, Deakin University, Waurn Ponds, Victoria, Australia
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Cho H, Kang I, Oh T, Yang S, Park KH, Min KD, Ham HJ, Chae C. Comparative study of the virulence of 3 major Korean porcine circovirus type 2 genotypes (a, b, and d). Can J Vet Res 2020; 84:235-240. [PMID: 32801460 PMCID: PMC7301680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 01/20/2019] [Accepted: 08/22/2019] [Indexed: 06/11/2023]
Abstract
The objective of this study was to compare the virulence of 3 major Korean porcine circovirus type 2 (PCV2) genotypes in terms of clinical signs, PCV2 viremia and antibody titers, lymphoid lesions, and PCV2-antigen within lymphoid lesions in experimentally infected pigs. Pigs were infected at 7 weeks with PCV2a, PCV2b, and PCV2d strains and necropsied at 28 days post-infection. No statistical differences were observed in clinical signs, PCV2 viremia and antibody titers, lymphoid lesions scores, and numbers of PCV2 antigens among the 3 major Korean PCV2 genotypes. The results of this study indicate that the 3 major Korean PCV2 genotypes, PCV2a, PCV2b, and PCV2d, have similar virulence.
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Affiliation(s)
- Hyejean Cho
- Department of Veterinary Pathology, College of Veterinary Medicine, (Cho, Kang, Oh, Yang, Park, Chae) and Institute of Health and Environment (Min), Seoul National University, 1 Gwanak-ro, Gwanak-gu, 08826, Seoul, Republic of Korea; College of Liberal Arts, Anyang University, Samdeok-ro 37, Beob-gil 22, Manan-gu, Anyang-si, Gyeonggi-Do, 14028, Republic of Korea (Ham)
| | - Ikjae Kang
- Department of Veterinary Pathology, College of Veterinary Medicine, (Cho, Kang, Oh, Yang, Park, Chae) and Institute of Health and Environment (Min), Seoul National University, 1 Gwanak-ro, Gwanak-gu, 08826, Seoul, Republic of Korea; College of Liberal Arts, Anyang University, Samdeok-ro 37, Beob-gil 22, Manan-gu, Anyang-si, Gyeonggi-Do, 14028, Republic of Korea (Ham)
| | - Taehwan Oh
- Department of Veterinary Pathology, College of Veterinary Medicine, (Cho, Kang, Oh, Yang, Park, Chae) and Institute of Health and Environment (Min), Seoul National University, 1 Gwanak-ro, Gwanak-gu, 08826, Seoul, Republic of Korea; College of Liberal Arts, Anyang University, Samdeok-ro 37, Beob-gil 22, Manan-gu, Anyang-si, Gyeonggi-Do, 14028, Republic of Korea (Ham)
| | - Siyeon Yang
- Department of Veterinary Pathology, College of Veterinary Medicine, (Cho, Kang, Oh, Yang, Park, Chae) and Institute of Health and Environment (Min), Seoul National University, 1 Gwanak-ro, Gwanak-gu, 08826, Seoul, Republic of Korea; College of Liberal Arts, Anyang University, Samdeok-ro 37, Beob-gil 22, Manan-gu, Anyang-si, Gyeonggi-Do, 14028, Republic of Korea (Ham)
| | - Kee Hwan Park
- Department of Veterinary Pathology, College of Veterinary Medicine, (Cho, Kang, Oh, Yang, Park, Chae) and Institute of Health and Environment (Min), Seoul National University, 1 Gwanak-ro, Gwanak-gu, 08826, Seoul, Republic of Korea; College of Liberal Arts, Anyang University, Samdeok-ro 37, Beob-gil 22, Manan-gu, Anyang-si, Gyeonggi-Do, 14028, Republic of Korea (Ham)
| | - Kyung-Duk Min
- Department of Veterinary Pathology, College of Veterinary Medicine, (Cho, Kang, Oh, Yang, Park, Chae) and Institute of Health and Environment (Min), Seoul National University, 1 Gwanak-ro, Gwanak-gu, 08826, Seoul, Republic of Korea; College of Liberal Arts, Anyang University, Samdeok-ro 37, Beob-gil 22, Manan-gu, Anyang-si, Gyeonggi-Do, 14028, Republic of Korea (Ham)
| | - Hee Jin Ham
- Department of Veterinary Pathology, College of Veterinary Medicine, (Cho, Kang, Oh, Yang, Park, Chae) and Institute of Health and Environment (Min), Seoul National University, 1 Gwanak-ro, Gwanak-gu, 08826, Seoul, Republic of Korea; College of Liberal Arts, Anyang University, Samdeok-ro 37, Beob-gil 22, Manan-gu, Anyang-si, Gyeonggi-Do, 14028, Republic of Korea (Ham)
| | - Chanhee Chae
- Department of Veterinary Pathology, College of Veterinary Medicine, (Cho, Kang, Oh, Yang, Park, Chae) and Institute of Health and Environment (Min), Seoul National University, 1 Gwanak-ro, Gwanak-gu, 08826, Seoul, Republic of Korea; College of Liberal Arts, Anyang University, Samdeok-ro 37, Beob-gil 22, Manan-gu, Anyang-si, Gyeonggi-Do, 14028, Republic of Korea (Ham)
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Martens JM, Stokes HS, Berg ML, Walder K, Bennett ATD. Seasonal fluctuation of beak and feather disease virus (BFDV) infection in wild Crimson Rosellas (Platycercus elegans). Sci Rep 2020; 10:7894. [PMID: 32398741 PMCID: PMC7217931 DOI: 10.1038/s41598-020-64631-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Accepted: 04/08/2020] [Indexed: 12/29/2022] Open
Abstract
Understanding patterns of pathogen emergence can help identify mechanisms involved in transmission dynamics. Beak and feather disease virus (BFDV) poses a major threat world-wide to wild and captive parrots. Yet data from wild birds on seasonal fluctuations in prevalence and infection intensity, and thereby the potential high-risk times for virus transmission, have been lacking. We screened wild Crimson Rosellas (Platycercus elegans) for BFDV in blood and cloacal swabs. Prevalence in blood samples and cloacal swabs, as well as viral load varied with Julian date and in blood, were highest after the breeding season. Breeding birds had lower viral load and lower BFDV prevalence in blood than non-breeding birds (10.1% prevalence in breeding vs. 43.2% in non-breeding birds). BFDV prevalence was much higher in younger (<3 years) than older (≥3 years) birds for both blood samples (42.9% vs. 4.5%) and cloacal swabs (56.4% vs. 12.3%). BFDV status in blood and cloacal samples was not correlated within individuals. We show that, at least in P. elegans, BFDV infection seems to occur year-round, with seasonal changes in prevalence and load found in our samples. Our analyses suggest that the seasonal changes were associated primarily with the breeding season. We also discuss age and sex as important predictors of BFDV infection.
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Affiliation(s)
- Johanne M Martens
- Centre for Integrative Ecology, School of Life and Environmental Sciences, Deakin University, 75 Pigdons Road, Waurn Ponds, VIC, 3216, Australia.
| | - Helena S Stokes
- Centre for Integrative Ecology, School of Life and Environmental Sciences, Deakin University, 75 Pigdons Road, Waurn Ponds, VIC, 3216, Australia
| | - Mathew L Berg
- Centre for Integrative Ecology, School of Life and Environmental Sciences, Deakin University, 75 Pigdons Road, Waurn Ponds, VIC, 3216, Australia
| | - Ken Walder
- Centre for Molecular and Medical Research, School of Medicine, Deakin University, 75 Pigdons Road, Waurn Ponds, VIC, 3216, Australia
| | - Andrew T D Bennett
- Centre for Integrative Ecology, School of Life and Environmental Sciences, Deakin University, 75 Pigdons Road, Waurn Ponds, VIC, 3216, Australia
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De Arcangeli S, Balboni A, Kaehler E, Urbani L, Verin R, Battilani M. Genomic Characterization of Canine Circovirus Detected in Red Foxes ( Vulpes vulpes) from Italy using a New Real-Time PCR Assay. J Wildl Dis 2020; 56:239-242. [PMID: 31237820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Data on canine circovirus circulation among red foxes (Vulpes vulpes) are limited. We report the detection of canine circovirus in a red fox from Italy. The virus was closely related to strains from dogs (Canis lupus familiaris) rather than those from foxes, suggesting a possible transmission between the two species.
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Affiliation(s)
- Stefano De Arcangeli
- Department of Veterinary Medical Sciences, Alma Mater Studiorum-University of Bologna, Via Tolara di Sopra 50, 40064 Ozzano dell'Emilia, Bologna, Italy
| | - Andrea Balboni
- Department of Veterinary Medical Sciences, Alma Mater Studiorum-University of Bologna, Via Tolara di Sopra 50, 40064 Ozzano dell'Emilia, Bologna, Italy
| | - Elisa Kaehler
- Department of Veterinary Medical Sciences, Alma Mater Studiorum-University of Bologna, Via Tolara di Sopra 50, 40064 Ozzano dell'Emilia, Bologna, Italy
| | - Lorenza Urbani
- Department of Veterinary Medical Sciences, Alma Mater Studiorum-University of Bologna, Via Tolara di Sopra 50, 40064 Ozzano dell'Emilia, Bologna, Italy
| | - Ranieri Verin
- Department of Veterinary Pathology and Public Health, Institute of Veterinary Sciences, University of Liverpool, Chester High Road, CH64 7TE Neston, Liverpool, UK
| | - Mara Battilani
- Department of Veterinary Medical Sciences, Alma Mater Studiorum-University of Bologna, Via Tolara di Sopra 50, 40064 Ozzano dell'Emilia, Bologna, Italy
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Li Y, Zhang P, Wu X, Wen D, Ji L, Chen L, Liu G, Fu X, Zhang J, Zhang C, Han J. High prevalence of norovirus GII.P16/GII.2 and chicken anemia virus in two acute gastroenteritis outbreaks in Huzhou, China. Acta Virol 2019; 63:328-332. [PMID: 31507200 DOI: 10.4149/av_2019_312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Acute gastroenteritis (AGE) is one of the most frequently occuring illnesses in children and adults worldwide. In February 2017, two AGE outbreaks occurred in two adjacent schools in Huzhou city, Zhenjiang province of China. We detected high percentages of recombinant norovirus GII.P16/GII.2 in one school and chicken anemia virus (CAV) in another school using next generation sequencing (NGS) and specific PCR. The results highlight the importance of continuous surveillance of GII.P16/GII.2, and suggest the need of further studies on whether CAV causes AGE. Keywords: acute gastroenteritis; norovirus; chicken anemia virus; Huzhou; School.
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Wang W, Cao L, Sun W, Xin J, Zheng M, Tian M, Lu H, Jin N. Sequence and phylogenetic analysis of novel porcine parvovirus 7 isolates from pigs in Guangxi, China. PLoS One 2019; 14:e0219560. [PMID: 31291362 PMCID: PMC6619813 DOI: 10.1371/journal.pone.0219560] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2019] [Accepted: 06/26/2019] [Indexed: 12/23/2022] Open
Abstract
Parvoviruses are a diverse group of viruses that infect a wide range of animals and humans. In recent years, advances in molecular techniques have resulted in the identification of several novel parvoviruses in swine. In this study, porcine parvovirus 7 (PPV7) isolates from clinical samples collected in Guangxi, China, were examined to understand their molecular epidemiology and co-infection with porcine circovirus type 2 (PCV2). In this study, among the 385 pig serum samples, 105 were positive for PPV7, representing a 27.3% positive detection rate. The co-infection rate of PPV7 and PCV2 was 17.4% (67/385). Compared with the reference strains, we noted 93.9%-97.9% similarity in the NS1 gene and 87.4%-95.0% similarity in the cap gene. Interestingly, compared with the reference strains, sixteen of the PPV7 strains in this study contained an additional 3 to 15 nucleotides in the middle of the cap gene. Therefore, the Cap protein of fourteen strains encoded 474 amino acids, and the Cap protein of the other two strains encoded 470 amino acids. However, the Cap protein of the reference strain PPV7 isolate 42 encodes 469 amino acids. This is the first report of sequence variation within the cap gene, confirming an increase in the number of amino acids in the Cap protein of PPV7. Our findings provide new insight into the prevalence of PPV7 in swine in Guangxi, China, as well as sequence data and phylogenetic analysis of these novel PPV7 isolates.
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Affiliation(s)
- Wei Wang
- College of Animal Science and Technology, Guangxi University, Nanning, People’s Republic of China
- Institute of Military Veterinary, Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Academy of Military Sciences, Changchun, People’s Republic of China
| | - Liang Cao
- Institute of Military Veterinary, Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Academy of Military Sciences, Changchun, People’s Republic of China
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, People’s Republic of China
| | - Wenchao Sun
- Institute of Military Veterinary, Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Academy of Military Sciences, Changchun, People’s Republic of China
- Institute of Virology, Wenzhou University, Wenzhou, People’s Republic of China
| | - Jialiang Xin
- College of Animal Science and Technology, Guangxi University, Nanning, People’s Republic of China
- Guangxi Center for Animal Disease Control and Prevention, Nanning, People’s Republic of China
| | - Min Zheng
- Guangxi Center for Animal Disease Control and Prevention, Nanning, People’s Republic of China
| | - Mingyao Tian
- Institute of Military Veterinary, Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Academy of Military Sciences, Changchun, People’s Republic of China
- * E-mail: (MYT); (HJL); (NYJ)
| | - Huijun Lu
- Institute of Military Veterinary, Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Academy of Military Sciences, Changchun, People’s Republic of China
- * E-mail: (MYT); (HJL); (NYJ)
| | - Ningyi Jin
- College of Animal Science and Technology, Guangxi University, Nanning, People’s Republic of China
- Institute of Military Veterinary, Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Academy of Military Sciences, Changchun, People’s Republic of China
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, People’s Republic of China
- Institute of Virology, Wenzhou University, Wenzhou, People’s Republic of China
- * E-mail: (MYT); (HJL); (NYJ)
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Xia D, Huang L, Xie Y, Zhang X, Wei Y, Liu D, Zhu H, Bian H, Feng L, Liu C. The prevalence and genetic diversity of porcine circovirus types 2 and 3 in Northeast China from 2015 to 2018. Arch Virol 2019; 164:2435-2449. [PMID: 31273470 DOI: 10.1007/s00705-019-04336-4] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2019] [Accepted: 06/03/2019] [Indexed: 11/26/2022]
Abstract
A total of 472 samples from domestic pigs collected in China from 2015 to 2018 were tested for the presence of porcine circovirus types 2 and 3 (PCV2 and PCV3, respectively) by conventional polymerase chain reaction analysis. The prevalence of PCV2, PCV3, and PCV2/3 co-infection was 50.0%, 13.3%, and 6.78%, respectively. The complete genomic sequences of 66 PCV2 isolates and four PCV3 isolates were determined. Based phylogenetic analysis, the PCV2 isolates were assigned to three genotypes, PCV2a, PCV2b, and PCV2d, representing 13.6% (9/66), 25.8% (17/66), and 60.6% (40/66) of the total, respectively. All four PCV3 isolates shared a high degree of similarity in their complete nucleotide sequences (98.8-99.8% identity) and ORF2 amino acid sequences (98.6-99.5% identity). These results indicate that all three PCV2 genotypes (PCV2a, PCV2b, and PCV2d) are present on pig farms and that PCV2d has become the predominant genotype. The predicted amino acid sequences of the four PCV3 isolates indicated that PCV3-CN-JL53/PCV3-CN-LN56, PCV3-CN-HLJ3, and PCV3-CN-0710, belonged to the genotypes PCV3a, PCV3b, and PCV3a-IM, respectively. In view of the great harm that PCV2 causes to the pig industry, the epidemic trend of PCV3 should continue to be closely monitored. This study provides information about the prevalence, genetic diversity, and molecular epidemiology of PCV2 and PCV3 in China from 2015 to 2018.
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Affiliation(s)
- Deli Xia
- Division of Swine Digestive System Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, 678 Ha-Ping Road, Xiangfang Region, Harbin, 150069, China
| | - Liping Huang
- Division of Swine Digestive System Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, 678 Ha-Ping Road, Xiangfang Region, Harbin, 150069, China
| | - Yongxing Xie
- Division of Swine Digestive System Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, 678 Ha-Ping Road, Xiangfang Region, Harbin, 150069, China
| | - Xiaoqian Zhang
- College of Life Science and Technology, Harbin Normal University, Harbin, 150080, China
| | - Yanwu Wei
- Division of Swine Digestive System Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, 678 Ha-Ping Road, Xiangfang Region, Harbin, 150069, China
| | - Dan Liu
- College of Veterinary Medicine, Ji Lin University, Changchun, 130062, China
| | - Hongzhen Zhu
- Division of Swine Digestive System Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, 678 Ha-Ping Road, Xiangfang Region, Harbin, 150069, China
| | - Haiqiao Bian
- Division of Swine Digestive System Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, 678 Ha-Ping Road, Xiangfang Region, Harbin, 150069, China
| | - Li Feng
- Division of Swine Digestive System Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, 678 Ha-Ping Road, Xiangfang Region, Harbin, 150069, China
| | - Changming Liu
- Division of Swine Digestive System Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, 678 Ha-Ping Road, Xiangfang Region, Harbin, 150069, China.
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Kotsias F, Bucafusco D, Nuñez DA, Lago Borisovsky LA, Rodriguez M, Bratanich AC. Genomic characterization of canine circovirus associated with fatal disease in dogs in South America. PLoS One 2019; 14:e0218735. [PMID: 31237902 PMCID: PMC6592543 DOI: 10.1371/journal.pone.0218735] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Accepted: 06/07/2019] [Indexed: 11/20/2022] Open
Abstract
Canine circovirus (CanineCV) was detected, together with canine parvovirus (CPV), in samples from an outbreak of fatal gastroenteritis in dogs in Argentina. We obtained the full-length genome of this recently discovered virus by overlapping PCR, designated strain UBA-Baires. Sequence analysis revealed a highly conserved genome but also showed several unique mutations in amino acids from the capsid protein that have not been previously reported. Phylogenetic analysis shows that this strain is more closely related to European strains than to viruses detected in North America or Asia. Although the pathogenic role of CanineCV in dogs is still unclear, this study highlights the importance of CanineCV as a coinfecting virus in disease development. To our knowledge, this is the first report of the involvement of CanineCV in severe clinical disease in dogs in South America. Our results expand our information on the geographical extent of this virus and contribute to the understanding of its role in disease.
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Affiliation(s)
- Fiorella Kotsias
- Cátedra de Virología, Facultad de Ciencias Veterinarias, Universidad de Buenos Aires (UBA), Buenos Aires, Argentina
- Instituto de Investigaciones en Producción Animal (INPA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) – Universidad de Buenos Aires (UBA), Buenos Aires, Argentina
| | - Danilo Bucafusco
- Cátedra de Virología, Facultad de Ciencias Veterinarias, Universidad de Buenos Aires (UBA), Buenos Aires, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
| | - Denise Anabel Nuñez
- Cátedra de Virología, Facultad de Ciencias Veterinarias, Universidad de Buenos Aires (UBA), Buenos Aires, Argentina
| | | | | | - Ana Cristina Bratanich
- Cátedra de Virología, Facultad de Ciencias Veterinarias, Universidad de Buenos Aires (UBA), Buenos Aires, Argentina
- Instituto de Investigaciones en Producción Animal (INPA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) – Universidad de Buenos Aires (UBA), Buenos Aires, Argentina
- * E-mail:
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Saraiva GL, Vidigal PMP, Assao VS, Fajardo MLM, Loreto ANS, Fietto JLR, Bressan GC, Lobato ZIP, Almeida MRD, Silva-Júnior A. Retrospective Detection and Genetic Characterization of Porcine circovirus 3 (PCV3) Strains Identified between 2006 and 2007 in Brazil. Viruses 2019; 11:v11030201. [PMID: 30818809 PMCID: PMC6466443 DOI: 10.3390/v11030201] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Revised: 02/15/2019] [Accepted: 02/22/2019] [Indexed: 11/16/2022] Open
Abstract
Porcine circovirus 3 (PCV3) is an emerging virus that was first identified in the United States in 2016. Since its first detection, PCV3 has already been found in America, Asia, and Europe. Although PCV3 has already been described in Brazil, knowledge of its detection and sequence variation before 2016 is limited, as well as its distribution in the main swine producing regions of Brazil. In this study, 67 porcine clinical samples collected from nine states in Brazil between 2006 and 2007 were analyzed for PCV3 infection by PCR. Results showed that 47.8% of the samples were PCV3 positive, across all nine states. Of the PCV3-positive samples, 37.5% were also positive for PCV2. Interestingly, no clinical signs were associated with samples that were detected singularly with PCV3 infection. Moreover, the positive PCV3 rate in healthy pigs was higher (29.8%) than that found in unhealthy pigs (17.9%), suggesting that most pigs could live with PCV3 infection without any clinical sign in the analyzed samples. Nucleotide sequence analysis showed that PCV3 strains obtained in this study shared 94.44% to 99.83% sequence identity at the open reading frame 2 (ORF2) gene level with available strains from different countries. PCV3 Brazilian sequences collected in 2006 and 2007 shared 97.94% to 99.62% identity with the strains obtained in 2016. The results of neutrality and selective pressure tests indicated that the PCV3 Cap protein seems unable to tolerate high levels of variation on its sequence. Phylogenetic analysis grouped the Brazilian strains in PCV3a and PCV3b genotypes clusters, both including strains collected in America, Asia, and Europe. Taking the results together, multiple events of introduction of PCV3 may have occurred in Brazil, and Brazilian PCV3 strains may show genetic stability over the past 10 years.
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Affiliation(s)
- Giuliana Loreto Saraiva
- Laboratório de Infectologia Molecular Animal, Instituto de Biotecnologia Aplicada à Agropecuária, Universidade Federal de Viçosa (UFV), Viçosa, Minas Gerais 36570-900, Brazil.
| | - Pedro Marcus Pereira Vidigal
- Núcleo de Análise de Biomoléculas (NuBioMol), Centro de Ciências Biológicas (CCB), Universidade Federal de Viçosa (UFV), Viçosa, Minas Gerais 36570-900, Brazil.
| | - Viviane Sisdelli Assao
- Laboratório de Imunobiológicos e Virologia Animal, Departamento de Veterinária, Universidade Federal de Viçosa (UFV), Viçosa, Minas Gerais 36570-900, Brazil.
| | - Murilo Leone Miranda Fajardo
- Laboratório de Imunobiológicos e Virologia Animal, Departamento de Veterinária, Universidade Federal de Viçosa (UFV), Viçosa, Minas Gerais 36570-900, Brazil.
| | - Alerrandra Nunes Saraiva Loreto
- Laboratório de Imunobiológicos e Virologia Animal, Departamento de Veterinária, Universidade Federal de Viçosa (UFV), Viçosa, Minas Gerais 36570-900, Brazil.
| | - Juliana Lopes Rangel Fietto
- Laboratório de Infectologia Molecular Animal, Instituto de Biotecnologia Aplicada à Agropecuária, Universidade Federal de Viçosa (UFV), Viçosa, Minas Gerais 36570-900, Brazil.
| | - Gustavo Costa Bressan
- Laboratório de Infectologia Molecular Animal, Instituto de Biotecnologia Aplicada à Agropecuária, Universidade Federal de Viçosa (UFV), Viçosa, Minas Gerais 36570-900, Brazil.
| | - Zélia Inês Portela Lobato
- Escola de Veterinária, Departamento de Medicina Veterinária Preventiva, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Minas Gerais 36570-900, Brazil.
| | - Márcia Rogéria de Almeida
- Laboratório de Infectologia Molecular Animal, Instituto de Biotecnologia Aplicada à Agropecuária, Universidade Federal de Viçosa (UFV), Viçosa, Minas Gerais 36570-900, Brazil.
| | - Abelardo Silva-Júnior
- Laboratório de Infectologia Molecular Animal, Instituto de Biotecnologia Aplicada à Agropecuária, Universidade Federal de Viçosa (UFV), Viçosa, Minas Gerais 36570-900, Brazil.
- Laboratório de Imunobiológicos e Virologia Animal, Departamento de Veterinária, Universidade Federal de Viçosa (UFV), Viçosa, Minas Gerais 36570-900, Brazil.
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Afolabi KO, Iweriebor BC, Obi LC, Okoh AI. Prevalence of porcine parvoviruses in some South African swine herds with background of porcine circovirus type 2 infection. Acta Trop 2019; 190:37-44. [PMID: 30367838 DOI: 10.1016/j.actatropica.2018.10.010] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2018] [Revised: 10/09/2018] [Accepted: 10/22/2018] [Indexed: 11/19/2022]
Abstract
The classical porcine parvovirus is an important pathogen of reproductive disorders in pigs with a confirmed history of global distribution. The detection of many novel porcine parvoviruses has however been on the increase for the past few years, but there is a dearth of information on the occurrence and prevalence of these viruses in South Africa. Molecular detection of some known parvoviruses, namely porcine parvoviruses (PPVs) - 1, 2, 3 and 4, porcine bocavirus-like virus (PBo-likeV) and porcine bocaviruses (PBoV1/2), was carried out from 110 randomly selected archived swine samples collected in the year 2015 and 2016. Samples were drawn from previously screened and confirmed porcine circovirus type 2 (PCV2) infected farms, with farm-level occurrence ranged from 5.6 to 60%. The findings showed that all the screened parvoviruses were present as follows: PPV1 (29.1%), PPV2 (21.8%), PPV3 (5.5%), PPV4 (43.6%), PBo-likeV (21.8%) and PBoV1/2 (44.6%). The frequency of double infections of the viruses was as high as 18.2% of PPV2/PPV4 and PPV4/PBoVs; while 17.3% and 7.3% of the screened samples showed multiple infections of the three and four viruses respectively. Further phylogenetic analyses of partial PPV1, 2 and PBoV1/2 sequences showed two major clades for each of the viruses. This study reports the first epidemiological survey and molecular characterisation of the classical and emerging porcine parvoviruses in South African swine herds. It also gives insights into the diversity and distribution of these viral pathogens within the herds of the study area and confirms their co-infection potentials with PCV2.
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Affiliation(s)
- Kayode Olayinka Afolabi
- SAMRC Microbial Water Quality Monitoring Centre, University of Fort Hare, Alice, Eastern Cape Province, South Africa; Applied and Environmental Microbiology Research Group (AEMREG), Department of Biochemistry and Microbiology, University of Fort Hare, Alice, Eastern Cape Province, South Africa; Department of Biological Sciences, Anchor University Lagos, Nigeria.
| | - Benson Chuks Iweriebor
- SAMRC Microbial Water Quality Monitoring Centre, University of Fort Hare, Alice, Eastern Cape Province, South Africa; Applied and Environmental Microbiology Research Group (AEMREG), Department of Biochemistry and Microbiology, University of Fort Hare, Alice, Eastern Cape Province, South Africa
| | - Larry Chikwelu Obi
- SAMRC Microbial Water Quality Monitoring Centre, University of Fort Hare, Alice, Eastern Cape Province, South Africa; Applied and Environmental Microbiology Research Group (AEMREG), Department of Biochemistry and Microbiology, University of Fort Hare, Alice, Eastern Cape Province, South Africa
| | - Anthony Ifeanyi Okoh
- SAMRC Microbial Water Quality Monitoring Centre, University of Fort Hare, Alice, Eastern Cape Province, South Africa; Applied and Environmental Microbiology Research Group (AEMREG), Department of Biochemistry and Microbiology, University of Fort Hare, Alice, Eastern Cape Province, South Africa
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Yao S, Tuo T, Gao X, Han C, Yan N, Liu A, Gao H, Gao Y, Cui H, Liu C, Zhang Y, Qi X, Hussain A, Wang Y, Wang X. Molecular epidemiology of chicken anaemia virus in sick chickens in China from 2014 to 2015. PLoS One 2019; 14:e0210696. [PMID: 30657774 PMCID: PMC6338413 DOI: 10.1371/journal.pone.0210696] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Accepted: 01/01/2019] [Indexed: 01/05/2023] Open
Abstract
Chicken anaemia virus (CAV), a member of the genus Gyrovirus, is the etiological agent of chicken infectious anaemia. CAV infects bone marrow-derived cells, resulting in severe anaemia and immunosuppression in young chickens and a compromised immune response in older birds. We investigated the molecular epidemiology of CAV in sick chickens in China from 2014 to 2015 and showed that the CAV-positive rate was 13.30%, in which mixed infection (55.56%) was the main type of infection. We isolated and identified 15 new CAV strains using different methods including indirect immunofluorescence assay and Western Blotting. We used overlapping polymerase chain reaction to map the whole genome of the strains. Phylogenetic analyses of the obtained sequences and related sequences available in GenBank generated four distinct groups (A-D). We built phylogenetic trees using predicted viral protein (VP) sequences. Unlike CAV VP2s and VP3s that were well conserved, the diversity of VP1s indicated that the new strains were virulent. Our epidemiological study provided new insights into the prevalence of CAV in clinical settings in recent years in China.
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Affiliation(s)
- Shuai Yao
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Tianbei Tuo
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Xiang Gao
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Chunyan Han
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
- College of Wildlife Resource, Northeast Forestry University, Harbin, China
| | - Nana Yan
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Aijing Liu
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Honglei Gao
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Yulong Gao
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Hongyu Cui
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Changjun Liu
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Yanping Zhang
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Xiaole Qi
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Altaf Hussain
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Yongqiang Wang
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Xiaomei Wang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
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Dione M, Masembe C, Akol J, Amia W, Kungu J, Lee HS, Wieland B. The importance of on-farm biosecurity: Sero-prevalence and risk factors of bacterial and viral pathogens in smallholder pig systems in Uganda. Acta Trop 2018; 187:214-221. [PMID: 29949731 DOI: 10.1016/j.actatropica.2018.06.025] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Revised: 06/21/2018] [Accepted: 06/23/2018] [Indexed: 01/06/2023]
Abstract
BACKGROUND The productivity of pigs in smallholder systems is affected by high disease burden, most of which might not be obvious, with their epidemiology and impact being poorly understood. This study estimated the seroprevalence and identified the risk factors of a range of bacterial and viral pathogens of potential economic and public health importance in domestic pigs in Uganda. A total of 522 clinically healthy pigs were randomly selected from 276 pig farms in Masaka (142) and Lira (134) districts of Uganda in 2015. RESULTS Overall the highest animal prevalence was found for Streptococcus suis 73.0% (CI95: 67.0-78.3) in Lira and 68.2% (CI95: 62.7-73.4) in Masaka; followed by Porcine circovirus type 2 with 50.8% (CI95: 44.5-57.2) in Lira and 40.7% (CI95: 35.2-46.5) in Masaka and Actinobacillus pleuro-pneumoniae, 25.6% (CI95: 20.4-31.6) in Lira and 20.5% (CI95: 16.2-25.6) in Masaka. Mycoplasma hyopneumonia prevalence was 20.9% (CI95: 16.2-26.6) in Lira and 10.1% (CI95: 7.1-14.1) in Masaka, while Porcine parvovirus was 6.2% (CI95: 4.0-9.7) in Masaka and 3.4% (CI95: 1.7-6.6) in Lira. Less common pathogens were Influenza A, 8.5% (CI95: 5.6-12.8) in Lira and 2.0% (CI95: 0.9-4.5) in Masaka and Porcine Reproductive and Respiratory Syndrome Virus, 1.7% (CI95: 0.7-4.3) in Lira and 1.3% (CI95: 0.5-3.5) in Masaka. Even less common was Rotavirus A with 0.8% (CI95: 0.2-3.0) in Lira and 0.7% (CI95: 0.2-2.5) in Masaka; the same was for Aujeszky virus with 0.4% (CI95: 0.7-2.4) in Lira and 0.0% (CI95: 0.0-0.1) in Masaka. Co-infection with two pathogens was common and there was a significant association of M. hyo and PCV2 co-occurrence (p = 0.016). Multivariate analysis showed that for S. suis the use of disinfectant reduced odds of sero-positivitey (OR = 0.15; p = 0.017) and pigs less than 6 months were more likely to be infected than older pigs (OR = 3.35; p = 0.047). For M. hyo, crossbred pigs had higher odd of infection compared to local breeds (OR = 1.59; p < 0.001). CONCLUSIONS The studied pathogens have high prevalences in smallholder pig production systems and might be silent killers, thus affecting productivity and there is a possibility that some pathogens could spread to humans. Given the limited knowledge of veterinary workers and the poor diagnostic capacities and capabilities in these systems, the diseases are potentially usually under-diagnosed. These findings constitute baseline data to measure the impact of future interventions aiming to reduce disease burden in the pig production systems in Uganda.
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Affiliation(s)
- Michel Dione
- International Livestock Research Institute, C/O Bioversity International, P. O. Box 24384 Kampala, Uganda.
| | - Charles Masembe
- College of Natural Sciences, Department of Zoology, Entomology and Fisheries Sciences Makerere University, P.O. Box 7062, Kampala, Uganda.
| | - Joyce Akol
- International Livestock Research Institute, C/O Bioversity International, P. O. Box 24384 Kampala, Uganda.
| | - Winfred Amia
- International Livestock Research Institute, C/O Bioversity International, P. O. Box 24384 Kampala, Uganda.
| | - Joseph Kungu
- College of Veterinary Medicine, Animal Resources and Biosecurity, Department of Biosecurity, Ecosystems and Veterinary Public Health, Makerere University, P. O. Box 7062, Kampala Uganda.
| | - Hu Suk Lee
- International Livestock Research Institute, 298 Kim Ma Street, Ba Dinh District, Hanoi, Vietnam.
| | - Barbara Wieland
- International Livestock Research Institute, P.O. Box 5689, Addis Ababa, Ethiopia.
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Tang MB, Chang HM, Wu WC, Chou YC, Yu CP. FIRST DETECTION OF CHICKEN ANEMIA VIRUS AND NOROVIRUS GENOGROUP II IN STOOL OF CHILDREN WITH ACUTE GASTROENTERITIS IN TAIWAN. Southeast Asian J Trop Med Public Health 2016; 47:416-423. [PMID: 27405124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
To date, there has been no report of co-infection of chicken anemia virus (CAV) with enteric virus in patients with acute gastroenteritis (AGE). CAV has been recently detected in various types of human samples including stool, indicating pathogenicity in gastrointestinal tract. Examination by PCR-based methods of CAV and norovivus genogroup II (NV GII) in stool of 110 children with AGE at a hospital in Taiwan revealed for the first time of co-infection in two cases. This is the first description of CAV infection in children with AGE in Taiwan. Systematic surveillance and evidence-based studies are required to determine the transmission pathways and spread of CAV in Taiwan.
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45
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Ye J, Tian X, Xie Q, Zhang Y, Sheng Y, Zhang Z, Wang C, Zhu H, Wang Y, Shao H, Qin A. Avian Gyrovirus 2 DNA in Fowl from Live Poultry Markets and in Healthy Humans, China. Emerg Infect Dis 2016. [PMID: 26196944 PMCID: PMC4517707 DOI: 10.3201/eid2108.150203] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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46
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Knafler GJ, Ortiz-Catedral L, Jackson B, Varsani A, Grueber CE, Robertson BC, Jamieson IG. Comparison of beak and feather disease virus prevalence and immunity-associated genetic diversity over time in an island population of red-crowned parakeets. Arch Virol 2015; 161:811-20. [PMID: 26699786 DOI: 10.1007/s00705-015-2717-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2015] [Accepted: 12/03/2015] [Indexed: 11/30/2022]
Abstract
Pathogen outbreaks in the wild can contribute to a population's extinction risk. Concern over the effects of pathogen outbreaks in wildlife is amplified in small, threatened populations, where degradation of genetic diversity may hinder natural selection for enhanced immunocompetence. Beak and feather disease virus (BFDV) was detected for the first time in an island population of red-crowned parakeets (Cyanoramphus novaezelandiae) in 2008 on Little Barrier Island (Hauturu-o-Toi) of New Zealand. By 2013, the prevalence of the viral infection had significantly decreased within the population. We tested whether the population of red-crowned parakeets showed a selective response to BFDV, using neutral microsatellite and two immunity-associated genetic markers, the major histocompatibility complex (MHC) and Toll-like receptors (TLRs). We found evidence for selection at viral-associated TLR3; however, the ability of TLR3 to elicit an immune response in the presence of BFDV warrants confirmation. Alternatively, because red-crowned parakeet populations are prone to fluctuations in size, the decrease in BFDV prevalence over time may be attributed to the Little Barrier Island population dropping below the density threshold for viral maintenance. Our results highlight that natural processes such as adaptation for enhanced immunocompetence and/or density fluctuations are efficient mechanisms for reducing pathogen prevalence in a threatened, isolated population.
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Affiliation(s)
- Gabrielle J Knafler
- Department of Zoology, University of Otago, PO Box 56, Dunedin, 9054, New Zealand.
| | - Luis Ortiz-Catedral
- Ecology and Conservation Group, Institute of Natural and Mathematical Sciences, Massey University, Private Bag 102-904, Auckland, New Zealand
| | - Bethany Jackson
- College of Veterinary Medicine, Murdoch University, Perth, WA, Australia
| | - Arvind Varsani
- Centre for Integrative Ecology, Biomolecular Interaction Centre and School of Biological Sciences, University of Canterbury, Private Bag 4800, Christchurch, 8140, New Zealand
- Structural Biology Research Unit, Division of Medical Biochemistry, Department of Clinical Laboratory Sciences, University of Cape Town, Rondebosch, Cape Town, 7701, South Africa
- Department of Plant Pathology and Emerging Pathogens Institute, University of Florida, Gainesville, USA
| | - Catherine E Grueber
- Department of Zoology, University of Otago, PO Box 56, Dunedin, 9054, New Zealand
- Faculty of Veterinary Science, University of Sydney, Sydney, NSW, Australia
- San Diego Zoo Global, San Diego, USA
| | - Bruce C Robertson
- Department of Zoology, University of Otago, PO Box 56, Dunedin, 9054, New Zealand
| | - Ian G Jamieson
- Department of Zoology, University of Otago, PO Box 56, Dunedin, 9054, New Zealand
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47
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Franzo G, Tucciarone CM, Dotto G, Gigli A, Ceglie L, Drigo M. International trades, local spread and viral evolution: the case of porcine circovirus type 2 (PCV2) strains heterogeneity in Italy. Infect Genet Evol 2015; 32:409-15. [PMID: 25858118 DOI: 10.1016/j.meegid.2015.04.004] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2015] [Revised: 03/31/2015] [Accepted: 04/01/2015] [Indexed: 12/31/2022]
Abstract
Porcine circovirus type 2 is one of the most widespread and economically relevant infections of swine. Four genotypes have been recognized, but currently, only three (PCV2a, PCV2b and PCV2d) are effectively circulating. The widespread livestock trade and rapid viral evolution have contributed to determining the high heterogeneity of PCV2 and the dispersal of potentially more virulent strains. Italian swine farming and the related processing industry are relevant in the national economy. Despite the noteworthy losses associated with direct and control measure costs, no data are currently available on the molecular epidemiology of PCV2 in Italy. Our study, which was intended to fill this gap, considered 75 completed genome PCV2 sequences, which were obtained from samples collected from the highly densely populated area of Northern Italy between 2007 and 2014. Phylogenetic analysis and comparison with reference sequences demonstrated the co-circulation, with different prevalences, of PCV2a, PCV2b and PCV2d within the national borders, with PCV2b being the most prevalent. Recombination between different genotypes was also proven to be frequent. Phylogeographic analysis demonstrated that the marked variability of Italian PCV2 strains can be attributable to multiple introduction events. The comparison of the phylogenetic analysis results, the location of different haplotypes and the international commercial routs of live pigs allow the speculation of several links as well as the role of Italy as both an importer and exporter of PCV2 haplotypes, mainly from and to European and Asian countries. A similarly intricate contact network was demonstrated within national borders, with different haplotypes being detected in the same province and different provinces harbouring the same haplotype. Overall, this paper represents the first description of PCV2 in Italy and demonstrates that the high variability of circulating Italian strains is due to multiple introduction events, wide circulation within national boundaries and rapid viral evolution.
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Affiliation(s)
- Giovanni Franzo
- Department of Animal Medicine, Production and Health (MAPS), University of Padua, Viale dell'Università 16, 35020 Legnaro (PD), Italy.
| | - Claudia M Tucciarone
- Department of Animal Medicine, Production and Health (MAPS), University of Padua, Viale dell'Università 16, 35020 Legnaro (PD), Italy
| | - Giorgia Dotto
- Department of Animal Medicine, Production and Health (MAPS), University of Padua, Viale dell'Università 16, 35020 Legnaro (PD), Italy
| | - Alessandra Gigli
- Istituto Zooprofilattico Sperimentale delle Venezie, Viale dell'Università 10, 35020 Legnaro (PD), Italy
| | - Letizia Ceglie
- Istituto Zooprofilattico Sperimentale delle Venezie, Viale dell'Università 10, 35020 Legnaro (PD), Italy
| | - Michele Drigo
- Department of Animal Medicine, Production and Health (MAPS), University of Padua, Viale dell'Università 16, 35020 Legnaro (PD), Italy
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Bhide K, Csank T, Pistl J, Ciberej J. Prevalence of porcine circovirus 2 and virus-specific antibodies in wild boars (Sus scrofa) in Slovakia. Acta Virol 2014; 58:386-8. [PMID: 25518724 DOI: 10.4149/av_2014_04_386] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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49
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Decaro N, Martella V, Desario C, Lanave G, Circella E, Cavalli A, Elia G, Camero M, Buonavoglia C. Genomic characterization of a circovirus associated with fatal hemorrhagic enteritis in dog, Italy. PLoS One 2014; 9:e105909. [PMID: 25147946 PMCID: PMC4141843 DOI: 10.1371/journal.pone.0105909] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2014] [Accepted: 07/29/2014] [Indexed: 01/18/2023] Open
Abstract
Dog circovirus (DogCV) was identified in an outbreak of enteritis in pups in Italy. The disease was observed in 6 young dachshunds pups of a litter from a breeding kennel and caused the death of 2 dogs. Upon full-genome analysis, the virus detected in one of the dead pups (strain Bari/411–13) was closely related to DogCVs that have been recently isolated in the USA. The present study, if corroborated by further reports, could represent a useful contribution to the knowledge of the pathogenic potential of DogCV and its association with enteritis in dogs.
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Affiliation(s)
- Nicola Decaro
- Department of Veterinary Medicine, University of Bari, Valenzano, Bari, Italy
- * E-mail:
| | - Vito Martella
- Department of Veterinary Medicine, University of Bari, Valenzano, Bari, Italy
| | - Costantina Desario
- Department of Veterinary Medicine, University of Bari, Valenzano, Bari, Italy
| | - Gianvito Lanave
- Department of Veterinary Medicine, University of Bari, Valenzano, Bari, Italy
| | - Elena Circella
- Department of Veterinary Medicine, University of Bari, Valenzano, Bari, Italy
| | - Alessandra Cavalli
- Department of Veterinary Medicine, University of Bari, Valenzano, Bari, Italy
| | - Gabriella Elia
- Department of Veterinary Medicine, University of Bari, Valenzano, Bari, Italy
| | - Michele Camero
- Department of Veterinary Medicine, University of Bari, Valenzano, Bari, Italy
| | - Canio Buonavoglia
- Department of Veterinary Medicine, University of Bari, Valenzano, Bari, Italy
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50
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Pujol FH, Mejías E, Loureiro CL, Ludert JE, Liprandi F, Pernalete JM. Infection with transfusion-transmitted virus (TTV) in humans and other primates in Venezuela. Annals of Tropical Medicine & Parasitology 2013; 99:173-80. [PMID: 15814036 DOI: 10.1179/136485905x24193] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
Tranfusion-transmitted virus (TTV), a single-stranded circular DNA virus that chronically infects humans and other animals, displays a high degree of genetic diversity and was originally thought to be associated with hepatitis. The prevalences of TTV infection among different populations of humans and non-human primates from Venezuela have now been evaluated, using serum samples and three different detection tests. All three tests were PCR-based, one involving a hemi-nested PCR and primers based on the N22 open-reading-frame-1 region (N22-PCR), another employing 55 cycles with primers from the more conserved untranslated region (UTR-PCR), and the other using a hemi-nested PCR with primers from the same region (HUTR-PCR). The overall prevalences of human infection appeared much higher with the HUTR-PCR (52%) than with the N22-PCR (13%) or the UTR-PCR (5%). When the products amplified by N22-PCR from 28 human isolates of TTV were sequenced, only two genotypes of the virus were detected. The non-human sera tested came from primates kept in a zoo in north-western Venezuela. TTV DNA was detected, by HUTR-PCR, in both of the chimpanzee sera tested but not in any of the sera from the 11 New-World primates or the other 12 Old-World primates that were investigated. The results, particularly those of the HUTR-PCR, indicate that TTV infection is common in Venezuela, especially in populations, such as many Amerindian groups, who live under poor sanitary conditions. Although TTV infection may be relatively rare among non-human primates from the New World, this will have to be investigated further, using many more samples collected throughout the Americas.
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Affiliation(s)
- F H Pujol
- Laboratorio de Virología Molecular, Centro de Microbiología y Biología Celular (CMBC), Instituto Venezolano de Investigaciones Científicas (IVIC), Apartado 21827, Caracas 1020-A, Venezuela.
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