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Keshavarz H, Mohammadi A, Morovati S. Evidence of bovine immunodeficiency virus: A molecular survey in water buffalo populations of Iran. Vet Med Sci 2022; 8:2167-2172. [PMID: 35781800 PMCID: PMC9514501 DOI: 10.1002/vms3.872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Background Objective Methods Results and conclusions
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Affiliation(s)
- Haniyeh Keshavarz
- Department of Pathobiology School of Veterinary Medicine Shiraz University Shiraz Iran
| | - Ali Mohammadi
- Department of Pathobiology School of Veterinary Medicine Shiraz University Shiraz Iran
| | - Solmaz Morovati
- Department of Pathobiology School of Veterinary Medicine Shiraz University Shiraz Iran
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2
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González-Fernández VD, Tórtora Pérez JL, García Flores MM, Aguilar Setién JÁ, Ramírez Álvarez H. First evidence of bovine immunodeficiency virus infection in Mexican cattle. Transbound Emerg Dis 2020; 67:1768-1775. [PMID: 32129921 DOI: 10.1111/tbed.13530] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Revised: 02/21/2020] [Accepted: 02/26/2020] [Indexed: 02/05/2023]
Abstract
This study set out to identify the presence of bovine immunodeficiency virus (BIV) in animals geographically located in Mexico. BIV was first discovered in the United States in a dairy cow with persistent lymphocytosis, lymphoid hyperplasia and lymphocytic encephalitis. Many studies indicate that BIV infection is globally distributed, but its presence in Mexico remains unknown. We collected 1,168 heparinized blood samples from cattle in ten states across the Mexican Republic, then separated plasma using centrifugation and tested for antibodies against BIV. We used an indirect ELISA based on the use of a synthetic peptide derived from transmembrane glycoprotein (gp45/TM). In order to identify the viral genome, we designed a synthetic gene as a PCR control, as well as a pair of oligonucleotides for amplifying a 519 bp product of the env gene which encodes the surface protein. Positive amplicons were purified and subjected to nucleotide sequencing. A total of 189 (28.94%) tested plasma samples suggest the presence of specific anti-BIV antibodies in all states studied except for Chiapas. Additionally, PCR results identified six positive cows in the states of Puebla and Coahuila. BIV in these cows was confirmed via nucleotide sequencing and in silico analysis of these samples. This is the first report of the presence of BIV in Mexican cattle.
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Affiliation(s)
- Víctor David González-Fernández
- Virology, Genetics and Molecular Biology Laboratory, Faculty of Higher Education, Cuautitlan, Veterinary Medicine, National Autonomous University of Mexico, Cuautitlán Izcalli, Mexico
| | - Jorge Luis Tórtora Pérez
- Virology, Genetics and Molecular Biology Laboratory, Faculty of Higher Education, Cuautitlan, Veterinary Medicine, National Autonomous University of Mexico, Cuautitlán Izcalli, Mexico
| | - María Martha García Flores
- Laboratory of Immunovirology, Medical Research in Immunology Unit, Pediatric Hospital, National Medical Center XXI Century, Mexican Institute of Social Security, Mexico City, Mexico
| | - José Álvaro Aguilar Setién
- Laboratory of Immunovirology, Medical Research in Immunology Unit, Pediatric Hospital, National Medical Center XXI Century, Mexican Institute of Social Security, Mexico City, Mexico
| | - Hugo Ramírez Álvarez
- Virology, Genetics and Molecular Biology Laboratory, Faculty of Higher Education, Cuautitlan, Veterinary Medicine, National Autonomous University of Mexico, Cuautitlán Izcalli, Mexico
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3
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Rodrigues A, Fonseca Júnior A, Lima G, Bicalho J, Leite R, Reis J. Molecular detection of bovine immunodeficiency virus (BIV) in bovines from the state of Minas Gerais, Brazil. ARQ BRAS MED VET ZOO 2019. [DOI: 10.1590/1678-4162-10495] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Affiliation(s)
| | | | - G.K. Lima
- Universidade Federal de Minas Gerais, Brazil
| | | | - R.C. Leite
- Universidade Federal de Minas Gerais, Brazil
| | - J.K.P. Reis
- Universidade Federal de Minas Gerais, Brazil
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4
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Albernaz TT, Leite RC, Reis JKP, de Sousa Rodrigues AP, da Cunha Kassar T, Resende CF, de Oliveira CHS, Silva RDM, Salvarani FM, Barbosa JD. Molecular detection of bovine immunodeficiency virus in water buffaloes (Bubalus bubalis) from the Amazon region, Brazil. Trop Anim Health Prod 2015; 47:1625-8. [PMID: 26174574 DOI: 10.1007/s11250-015-0884-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2015] [Accepted: 06/30/2015] [Indexed: 10/23/2022]
Abstract
Bovine immunodeficiency is a chronic progressive disease caused by a lentivirus that affects cattle and buffaloes. Although the infection has been described in cattle in some countries, including in Brazil, there are only two reports of infection in buffaloes: one in Pakistan and one in Cambodia. The aim of the present study was to survey the occurrence of bovine immunodeficiency virus (BIV) in water buffaloes from the Amazon region, Pará state, Brazil. BIV proviral DNA was surveyed in 607 whole blood samples of water buffaloes from 10 farms located in the state of Pará using semi-nested polymerase chain reaction (PCR) (PCR-SN) to amplify the pol region of the viral genome. Of the 607 samples tested, 27 (4.4 %) were positive for BIV proviral DNA. The amplified fragments were confirmed by sequence analysis after cloning and nucleotide sequencing. The sequence obtained had 99 % similarity to the reference strain (R-29). The present study provides important epidemiological data because BIV was detected for the first time in water buffaloes in Brazil. Further, the results suggest the possibility of the virus being a risk factor for herd health because it may be a potential causal agent of chronic disease and, also may be associated to other infectious diseases.
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Affiliation(s)
- Tatiane Teles Albernaz
- Instituto de Medicina Veterinária, Hospital Veterinário de Grandes Animais, Universidade Federal do Pará, Rodovia BR 316 Km 61, Bairro Saudade, 68740-970, Castanhal, PA, Brazil.
| | - Rômulo Cerqueira Leite
- Departamento de Medicina Veterinária Preventiva, Escola de Veterinária, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Jenner Karlison Pimenta Reis
- Departamento de Medicina Veterinária Preventiva, Escola de Veterinária, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Ana Paula de Sousa Rodrigues
- Departamento de Medicina Veterinária Preventiva, Escola de Veterinária, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Telissa da Cunha Kassar
- Departamento de Medicina Veterinária Preventiva, Escola de Veterinária, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Claudia Fideles Resende
- Departamento de Medicina Veterinária Preventiva, Escola de Veterinária, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Cairo Henrique Sousa de Oliveira
- Departamento de Medicina Veterinária Preventiva, Escola de Veterinária, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Rafaela das Mercês Silva
- Instituto de Medicina Veterinária, Hospital Veterinário de Grandes Animais, Universidade Federal do Pará, Rodovia BR 316 Km 61, Bairro Saudade, 68740-970, Castanhal, PA, Brazil
| | - Felipe Masiero Salvarani
- Instituto de Biodiversidade e Florestas, Universidade Federal do Oeste do Pará, Santarém, PA, Brazil
| | - José Diomedes Barbosa
- Instituto de Medicina Veterinária, Hospital Veterinário de Grandes Animais, Universidade Federal do Pará, Rodovia BR 316 Km 61, Bairro Saudade, 68740-970, Castanhal, PA, Brazil
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5
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Serological survey for bovine immunodeficiency virus in dairy cattle from Poland. Pol J Vet Sci 2011; 14:579-83. [DOI: 10.2478/v10181-011-0086-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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6
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Molecular evidence for bovine immunodeficiency virus infection in Iranian sheep and cattle population. ACTA ACUST UNITED AC 2010. [DOI: 10.1007/s00580-010-1048-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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McNab T, Desport M, Dobson R, Tenaya IWM, Hartaningsih N, Wilcox GE. Prior bovine immunodeficiency virus infection does not inhibit subsequent superinfection by the acutely pathogenic Jembrana disease virus. Virology 2010; 404:261-8. [PMID: 20570311 DOI: 10.1016/j.virol.2010.05.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2010] [Accepted: 05/03/2010] [Indexed: 11/19/2022]
Abstract
In cattle the interaction between the two genetically and antigenically related bovine lentiviruses, the acutely pathogenic Jembrana disease virus (JDV) and the non-pathogenic Bovine immunodeficiency virus (BIV) has not been reported although both JDV and a BIV-like virus have been reported in the Bali cattle (Bos javanicus) population in Indonesia. The outcome of infection of Bali cattle with the R29 strain of BIV prior to superinfection 42 days later with JDV(TAB/87) was determined. All BIV-inoculated cattle were successfully infected and developed an antibody response to the TM and CA proteins. BIV infection did not prevent subsequent infection with JDV or ameliorate the clinical signs of Jembrana disease in the infected cattle. It did, however, modify the dynamics of the JDV infection with an earlier onset and end of the acute disease process, and a reduction in the duration of viremia that exceeded 10(6) genome copies/ml of plasma.
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Affiliation(s)
- Tegan McNab
- School of Veterinary and Biomedical Science, Murdoch University, Murdoch WA 6150, Australia.
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8
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Risk of equine infectious anemia virus disease transmission through in vitro embryo production using somatic cell nuclear transfer. Theriogenology 2009; 72:289-99. [DOI: 10.1016/j.theriogenology.2009.03.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2008] [Revised: 03/20/2009] [Accepted: 03/28/2009] [Indexed: 11/23/2022]
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9
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González E, Licursi M, Vila Roza V, Bonzo E, Mortola E, Frossard J, Venables C. Evidence of bovine immunodeficiency virus (BIV) infection: Serological survey in Argentina. Res Vet Sci 2008; 85:353-8. [DOI: 10.1016/j.rvsc.2007.10.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2007] [Revised: 08/15/2007] [Accepted: 10/11/2007] [Indexed: 11/16/2022]
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10
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Desport M, Stewart ME, Mikosza AS, Sheridan CA, Peterson SE, Chavand O, Hartaningsih N, Wilcox GE. Sequence analysis of Jembrana disease virus strains reveals a genetically stable lentivirus. Virus Res 2007; 126:233-44. [PMID: 17433486 DOI: 10.1016/j.virusres.2007.03.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2006] [Revised: 03/08/2007] [Accepted: 03/08/2007] [Indexed: 10/23/2022]
Abstract
Jembrana disease virus (JDV) is a lentivirus associated with an acute disease syndrome with a 20% case fatality rate in Bos javanicus (Bali cattle) in Indonesia, occurring after a short incubation period and with no recurrence of the disease after recovery. Partial regions of gag and pol and the entire env were examined for sequence variation in DNA samples from cases of Jembrana disease obtained from Bali, Sumatra and South Kalimantan in Indonesian Borneo. A high level of nucleotide conservation (97-100%) was observed in gag sequences from samples taken in Bali and Sumatra, indicating that the source of JDV in Sumatra was most likely to have originated from Bali. The pol sequences and, unexpectedly, the env sequences from Bali samples were also well conserved with low nucleotide (96-99%) and amino acid substitutions (95-99%). However, the sample from South Kalimantan (JDV(KAL/01)) contained more divergent sequences, particularly in env (88% identity). Phylogenetic analysis revealed that the JDV(KAL/01)env sequences clustered with the sequence from the Pulukan sample (Bali) from 2001. JDV appears to be remarkably stable genetically and has undergone minor genetic changes over a period of nearly 20 years in Bali despite becoming endemic in the cattle population of the island.
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MESH Headings
- Amino Acid Sequence
- Animals
- Base Sequence
- Cattle
- Cattle Diseases/virology
- DNA Primers/genetics
- DNA, Viral/genetics
- Evolution, Molecular
- Genes, env
- Genes, gag
- Genes, pol
- Genomic Instability
- Indonesia
- Lentivirus Infections/veterinary
- Lentivirus Infections/virology
- Lentiviruses, Bovine/classification
- Lentiviruses, Bovine/genetics
- Lentiviruses, Bovine/isolation & purification
- Molecular Sequence Data
- Phylogeny
- Sequence Homology, Amino Acid
- Sequence Homology, Nucleic Acid
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Affiliation(s)
- Moira Desport
- Division of Veterinary and Biomedical Science, Murdoch University, Perth, Western Australia 6150, Australia.
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11
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St-Louis MC, Cojocariu M, Archambault D. The molecular biology of bovine immunodeficiency virus: a comparison with other lentiviruses. Anim Health Res Rev 2005; 5:125-43. [PMID: 15984320 DOI: 10.1079/ahr200496] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Bovine immunodeficiency virus (BIV) was first isolated in 1969 from a cow, R-29, with a wasting syndrome. The virus isolated induced the formation of syncytia in cell cultures and was structurally similar to maedi-visna virus. Twenty years later, it was demonstrated that the bovine R-29 isolate was indeed a lentivirus with striking similarity to the human immunodeficiency virus. Like other lentiviruses, BIV has a complex genomic structure characterized by the presence of several regulatory/accessory genes that encode proteins, some of which are involved in the regulation of virus gene expression. This manuscript aims to review biological and, more particularly, molecular aspects of BIV, with emphasis on regulatory/accessory viral genes/proteins, in comparison with those of other lentiviruses.
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Affiliation(s)
- Marie-Claude St-Louis
- University of Québec at Montréal, Department of Biological Sciences, Montréal, Québec, Canada
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Lew AE, Bock RE, Miles J, Cuttell LB, Steer P, Nadin-Davis SA. Sensitive and specific detection of bovine immunodeficiency virus and bovine syncytial virus by 5' Taq nuclease assays with fluorescent 3' minor groove binder-DNA probes. J Virol Methods 2004; 116:1-9. [PMID: 14715301 DOI: 10.1016/j.jviromet.2003.10.006] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Sensitive assays are required to detect bovine retroviruses in donor cattle used for the in vivo preparation of Australian tick fever vaccines. 5' Taq nuclease assays using 3' minor groove binder DNA probes (TaqMan)MGB) were developed and compared to conventional PCR assays for the sensitive detection of bovine syncytial virus (BSV) and bovine immunodeficiency virus (BIV). Seven beef and dairy herds were screened to evaluate these tests. Comparative sensitivities of PCR tests were determined by testing log(10) dilutions of plasmids with inserts containing corresponding provirus sequences. Published PCR assays targeting BIV env sequences did not adequately amplify Australian BIV sequences. Pol sequences from Australian strains of BIV and BSV were used to design TaqMan MGB assays, which improved sensitivity 10-fold (BIV) and 100-fold (BSV), respectively, over conventional PCR tests. This is the first report of Australian sequences of BIV and BSV and the first 5' Taq nuclease assays described to detect these viruses. These methods could be applied to future studies requiring sensitive detection of these two bovine retroviruses.
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Affiliation(s)
- Ala E Lew
- Agency for Food and Fibre Sciences, Queensland Department of Primary Industries, c/o Locked Mail Bag No. 4, Moorooka, 4105, Qld, Australia.
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13
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Wu D, Murakami K, Morooka A, Jin H, Inoshima Y, Sentsui H. In vivo transcription of bovine leukemia virus and bovine immunodeficiency-like virus. Virus Res 2004; 97:81-7. [PMID: 14602199 DOI: 10.1016/s0168-1702(03)00222-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cellular tropism and transcription of bovine leukemia virus (BLV) and bovine immunodeficiency-like virus (BIV) were investigated using peripheral blood mononuclear cells (PBMC) collected from a cow infected with both viruses. Each PBMC subset, purified by magnetic cell sorting, was subjected to PCR and RT-PCR for detection of their integrated proviruses and transcript mRNAs. Both BLV and BIV genomes were detected by nested PCR in CD3(+), CD4(+), CD8(+) and gammadelta T cells, B cells and monocytes. However, BLV tax transcription was only detected in B cells, and only B cells also formed BLV syncytia in CC81 cells. On the other hand, BIV transcript was detected in each subpopulation of PBMC. These results indicated that BLV can infect T cells and monocytes as well as B cells, but can be expressed by transcription only in B cells. In contrast, BIV can express its transcripts in all infected cells.
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Affiliation(s)
- Donglai Wu
- National Institute of Animal Health, 3-1-5 Kannondai, Tsukuba, Ibaraki 305-0856, Japan
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Usui T, Meas S, Konnai S, Ohashi K, Onuma M. Seroprevalence of bovine immunodeficiency virus and bovine leukemia virus in dairy and beef cattle in hokkaido. J Vet Med Sci 2003; 65:287-9. [PMID: 12655131 DOI: 10.1292/jvms.65.287] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Serological survey of bovine immunodeficiency virus (BIV) and bovine leukemia virus (BLV) infection was conducted in dairy cattle from 10 different regions of Hokkaido, Japan. Among 390 cattle, 11.0% of cattle were BIV-seropositive and 3.3% were BLV-seropositive. Moreover, in two dairy farms, where bovine leukosis has been reported, prevalence of BIV infections were 6.4 and 9.1%, respectively. In contrast, among 150 beef cattle, 16.6% were BIV-seropositive while none was BLV-seropositive. Dual infections with BLV and BIV in dairy cattle were tested by using 107 BLV-seropositive sera, and 20 sera were found BIV-positive (18.7%). These results indicate that BIV infection was widespread in Hokkaido.
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Affiliation(s)
- Tatsufumi Usui
- Department of Disease Control, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Japan
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Meas S, Usui T, Ohashi K, Sugimoto C, Onuma M. Vertical transmission of bovine leukemia virus and bovine immunodeficiency virus in dairy cattle herds. Vet Microbiol 2002; 84:275-82. [PMID: 11731179 DOI: 10.1016/s0378-1135(01)00458-8] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Vertical transmission of bovine leukemia virus (BLV) and bovine immunodeficiency virus (BIV) was investigated in five dairy cattle herds in Hokkaido, where 36.1 and 17.0% of cattle were BLV and BIV seropositive, respectively, and 9.9% of dams were co-infected with both BIV and BLV. Twenty six cases of offspring born from dams infected with only BLV (17 cases) or with both BIV and BLV (9 cases) were examined for the presence of BLV and BIV before and after colostrum feeding by polymerase chain reaction (PCR) and syncytium assay. After birth, all calves were separated immediately from their dams. The offspring born from BLV-positive dams were BLV-negative before colostrum feeding, suggesting that no transplacental transmission had occurred. Thereafter, these offspring were fed colostrum or milk from their dams, but still remained BLV-negative. The other offspring born from BLV-positive dams were fed with BLV-negative colostrum, or with pasteurized BLV-positive colostrum. All these calves remained negative for BLV infection, suggesting that in utero transmission of BLV is negligible. In the case of offspring born from dams co-infected with BLV and BIV, calves were BIV-positive before colostrum feeding at 1 day after the birth, indicating in utero transmission of BIV. After colostrum feeding from their dams, newborn calves became BLV-positive. In addition, one calf was BLV-positive even before colostrum feeding. These results suggest that BIV can be transmitted to offspring in utero, and that BLV can be transmitted through colostrum or milk if dams are infected with both BIV and BLV.
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Affiliation(s)
- Sothy Meas
- Department of Disease Control, Graduate School of Veterinary Medicine, Hokkaido University, 060-0818, Sapporo, Japan
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Meas S, Ohashi K, Tum S, Chhin M, Te K, Miura K, Sugimoto C, Onuma M. Seroprevalence of bovine immunodeficiency virus and bovine leukemia virus in draught animals in Cambodia. J Vet Med Sci 2000; 62:779-81. [PMID: 10945301 DOI: 10.1292/jvms.62.779] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Since bovine immunodeficiency virus (BIV), known as bovine lentivirus, has been detected in dairy and beef cattle in various countries around the world, a prevalence study of antibodies to BIV and bovine leukemia virus (BLV) was conducted in draught animals in five provinces in Cambodia, where protozoan parasite infections were suspected in some animals. To clarify the status of draught animals including Haryana, Brahman, mixed-breed, local breed cattle and muscle water buffaloes, a total of 544 cattle and 42 buffaloes were tested, and 26.3 and 16.7%, respectively, were found positive for anti-BIV p26 antibodies determined by Western blotting. There were 5.3% positive for anti-BLV antibodies detected by immunodiffusion test among the cattle, but no reactors among buffaloes and no dual infection for both BIV and BLV was determined in this study. Peripheral blood mononuclear cells from BIV-seropositive cattle were found to have BIV-provirus DNA, as detected by polymerase chain reaction and subsequent Southern blot hybridization. This is the first evidence for the presence of BIV and BLV infections in draught animals in tropical countries such as Cambodia. This wide distribution of BIV suggests its association with problems in animal health as reported worldwide, and that a primary BIV infection can predispose death of affected animals by other aggressive pathogens or stresses.
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Affiliation(s)
- S Meas
- Department of Disease Control, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Japan
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Meas S, Seto J, Sugimoto C, Bakhsh M, Riaz M, Sato T, Naeem K, Ohashi K, Onuma M. Infection of bovine immunodeficiency virus and bovine leukemia virus in water buffalo and cattle populations in Pakistan. J Vet Med Sci 2000; 62:329-31. [PMID: 10770609 DOI: 10.1292/jvms.62.329] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
A survey of antibodies to bovine immunodeficiency virus (BIV) known as bovine lentivirus and bovine leukemia virus (BLV) was conducted with samples from water buffalo and cattle populations in Pakistan. A total of 370 water buffaloes and 76 cattle were tested, and 10.3% and 15.8%, respectively, were found positive for anti-BIV p26 antibodies determined by Western blotting, while 0.8% of water buffaloes and no cattle were positive for anti-BLV antibodies determined by immunodiffusion test. BIV-seropositive water buffaloes and cattle were found to have BIV proviral DNA in the peripheral blood mononuclear cells determined by nested polymerase chain reaction. This is the first report of BIV infections in water buffaloes.
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Affiliation(s)
- S Meas
- Department of Disease Control, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Japan
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18
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Cho KO, Meas S, Park NY, Kim YH, Lim YK, Endoh D, Lee SI, Ohashi K, Sugimoto C, Onuma M. Seroprevalence of bovine immunodeficiency virus in dairy and beef cattle herds in Korea. J Vet Med Sci 1999; 61:549-51. [PMID: 10379949 DOI: 10.1292/jvms.61.549] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Infection of bovine immunodeficiency virus (BIV), a lentivirus, is thought to sporadically occur throughout the world, but seroepidemiological surveys concerning the incidence of BIV are limited and have not been undertaken in Korea. A total of 266 sera from different twenty dairy (Holstein) and twenty-six Korean native beef (Hanwoo) farms of the south-western part of Korea was analyzed for the presence of anti-BIV antibodies by Western blotting. Thirty five percent and 33% of dairy and beef cattle, respectively, were BIV-seropositive. By nested polymerase chain reaction, it was confirmed that these seropositive cows had provirus in the peripheral blood mononuclear cells. To demonstrate the correlation with BIV and bovine leukemia virus (BLV) infection, these sera were also analyzed for anti-BLV antibodies by immunodiffusion test, resulting in high prevalence of BLV infection but relatively a few dual infections. We report herein the first serological detection of antibodies to BIV in Korea.
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Affiliation(s)
- K O Cho
- Laboratories of Infectious Diseases, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Japan
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