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Shao H, Li J, Zhang J, Zhang Q, Ma L, Lu J, Li T, Xie Q, Wan Z, Qin A, Ye J. Research Note: A novel peptide-based ELISA for efficient detection of antibody against chicken infectious anemia virus. Poult Sci 2022; 102:102284. [PMID: 36399931 PMCID: PMC9673107 DOI: 10.1016/j.psj.2022.102284] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 10/13/2022] [Accepted: 10/19/2022] [Indexed: 11/15/2022] Open
Abstract
Chicken infectious anemia virus (CIAV) is the pathogen of chicken infectious anemia. Currently, due to the lack of effective diagnostics technology and prevention approach, CIAV has spread globally and caused huge economic losses to poultry industry. In this study, a novel peptide-based ELISA (pELISA) for efficient detection of antibody against CIAV was developed. The peptide (25CRLRRRYKFRHRRRQRYRRRAF45) used in pELISA was highly conserved in VP1 protein of different CIAV isolates. The specificity and reproducibility showed that the pELISA only reacted with sera against CIAV, not with sera against other pathogens tested, and the CV of the intra-/inter-assay of the pELISA was 6.8 to 9.22%. Moreover, the comparison assay using 56 clinical samples showed that the positive rate of the pELISA and the commercial ELISA kit (IDEXX) was 85.7 and 80.4%, respectively. The pELISA generated here provides a rapid and efficient serological detection method for diagnosis of CIAV infection and evaluation of the efficacy of CIAV vaccination.
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Affiliation(s)
- Hongxia Shao
- Key Laboratory of Jiangsu Preventive Veterinary Medicine, Key Laboratory for Avian Preventive Medicine, Ministry of Education, College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, China 225009,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, China 225009,Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu, China 225009,Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, Jiangsu, China 225009
| | - Jinzhi Li
- Key Laboratory of Jiangsu Preventive Veterinary Medicine, Key Laboratory for Avian Preventive Medicine, Ministry of Education, College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, China 225009,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, China 225009,Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu, China 225009,Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, Jiangsu, China 225009
| | - Jun Zhang
- Key Laboratory of Jiangsu Preventive Veterinary Medicine, Key Laboratory for Avian Preventive Medicine, Ministry of Education, College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, China 225009,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, China 225009,Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu, China 225009
| | - Qi Zhang
- Wens Foodstuff Group Co., Ltd, Yunfu, Guangdong, China 527400
| | - Li Ma
- Key Laboratory of Jiangsu Preventive Veterinary Medicine, Key Laboratory for Avian Preventive Medicine, Ministry of Education, College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, China 225009,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, China 225009,Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu, China 225009,Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, Jiangsu, China 225009
| | - Jinhua Lu
- Wens Foodstuff Group Co., Ltd, Yunfu, Guangdong, China 527400
| | - Tuofan Li
- Key Laboratory of Jiangsu Preventive Veterinary Medicine, Key Laboratory for Avian Preventive Medicine, Ministry of Education, College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, China 225009,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, China 225009,Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu, China 225009,Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, Jiangsu, China 225009
| | - Quan Xie
- Key Laboratory of Jiangsu Preventive Veterinary Medicine, Key Laboratory for Avian Preventive Medicine, Ministry of Education, College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, China 225009,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, China 225009,Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu, China 225009,Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, Jiangsu, China 225009
| | - Zhimin Wan
- Key Laboratory of Jiangsu Preventive Veterinary Medicine, Key Laboratory for Avian Preventive Medicine, Ministry of Education, College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, China 225009,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, China 225009,Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu, China 225009,Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, Jiangsu, China 225009
| | - Aijian Qin
- Key Laboratory of Jiangsu Preventive Veterinary Medicine, Key Laboratory for Avian Preventive Medicine, Ministry of Education, College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, China 225009,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, China 225009,Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu, China 225009,Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, Jiangsu, China 225009
| | - Jianqiang Ye
- Key Laboratory of Jiangsu Preventive Veterinary Medicine, Key Laboratory for Avian Preventive Medicine, Ministry of Education, College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, China 225009,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, China 225009,Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu, China 225009,Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, Jiangsu, China 225009,Corresponding author:
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Rodrigues EE, Imperatori F, Back A, Kuana SL, Brehmer M. Rate of Transfer of Infectious Anaemia Maternal Antibodies from Broiler Breeders To the Progeny: a Field Evaluation. BRAZILIAN JOURNAL OF POULTRY SCIENCE 2022. [DOI: 10.1590/1806-9061-2021-1562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
| | | | - A Back
- MercoLab Laboratories, Brazil
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3
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Wanganurakkul S, Smith DR, Chintapitaksakul L, Assavalapsakul W. Effective production of recombinant Δ60VP1 chicken anemia virus protein in Escherichia coli and its application to a serodiagnostic indirect ELISA. J Virol Methods 2020; 282:113887. [PMID: 32445874 DOI: 10.1016/j.jviromet.2020.113887] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 05/05/2020] [Accepted: 05/17/2020] [Indexed: 01/01/2023]
Abstract
Chicken anemia virus (CAV) causes severe anemia and immunosuppression in chickens. VP1 is the main capsid protein, and is suitable for diagnostic kit development, however, it has 24 arginine residues in the first forty N-terminal amino acids of the protein causing toxicity to bacteria leading to reduced prokaryotic expression. In this study, a 60 amino acid N-terminally truncated VP1 (Δ60VP1) which removes the toxic region was expressed in Escherichia coli and the resultant insoluble recombinant protein was purified by Ni-NTA affinity chromatography with anionic denaturing detergents. The high amounts of purified Δ60VP1 produced (150 mg/L) retained appropriate antigenicity and the antigen was used to develop an indirect enzyme-linked immunosorbent assay (ELISA) for serological diagnosis of CAV. One hundred fifty-two chicken serum samples (n = 152) were evaluated using the newly developed Δ60VP1 indirect ELISA (cutoff value = 7.58 % S/P). The sensitivity and specificity of the Δ60VP1 indirect ELISA were 87.50 % and 95.31 %, respectively, while the agreement between the Δ60VP1 indirect ELISA and the commercial IDEXX CAV ELISA was 90.79 % (kappa = 0.814). In this study, we have developed an alternative VP1 production platform in E. coli by truncating the N-terminal 60 amino acids (Δ60VP1) and using anionic denaturing detergents during the purification to successfully solubilize the insoluble Δ60VP1. The antigen was purified with high yield and good immunoreactivity, and an indirect ELISA was developed. The assay could potentially be applied to large-scale CAV serosurveillance.
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Affiliation(s)
- Saruda Wanganurakkul
- Department of Microbiology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand; Eastern Region Veterinary Research and Development Center, Chonburi 20220, Thailand.
| | - Duncan R Smith
- Institute of Molecular Biosciences, Mahidol University, Nakornpathom 73170, Thailand.
| | | | - Wanchai Assavalapsakul
- Department of Microbiology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand.
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4
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Du T, Zhu G, Wu X, Fang J, Zhou EM. Biotinylated Single-Domain Antibody-Based Blocking ELISA for Detection of Antibodies Against Swine Influenza Virus. Int J Nanomedicine 2019; 14:9337-9349. [PMID: 31819435 PMCID: PMC6890519 DOI: 10.2147/ijn.s218458] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Accepted: 11/14/2019] [Indexed: 12/15/2022] Open
Abstract
Background Enzyme-linked immunosorbent assay (ELISA) is a common method for diagnosing swine influenza. However, the production of classical antibodies is both costly and time-consuming. As a promising alternative diagnostic tool, single-domain antibodies (sdAbs) offer the advantages of simpler and faster generation, good stability and solubility, and high affinity and specificity. Methods Phage display technology was used to isolate sdAbs against the SIV-NP protein from a camel VHH library. The sdAb5 was fused to the biotin acceptor peptide (BAP) and a His-Tag for its expression as monomeric and site-specific biotinylation in E.coli to develop an sdAb-based blocking ELISA (sdAb-ELISA). In the sdAb-ELISA, the anti-SIV antibodies from swine samples were used to block the binding between the biotinylated sdAb5 and SIV-NP protein coated on the ELISA plate. The specificity, sensitivity, and reproducibility of sdAb-ELISA were determined. In addition, consistency among sdAb-ELISA, commercial ELISA kit, and Western blot was evaluated. Results Six SIV-NP-specific sdAbs were isolated, among which sdAb5 was identified as a dominant sdAb with higher reactivity. The cut-off value of biotinylated sdAb5-based bELISA was determined to be 29.8%. Compared with the positive reference serum against five different types of swine viruses, the developed sdAb-ELISA showed 100% specificity. The detection limit of sdAb-ELISA was 1:160 in an anti-SIV positive reference serum, which is lower than that of the commercial ELISA kit (1:20). In 78 diluted anti-SIV positive serum (1:80), 21 and 42 samples were confirmed as positive by the commercial ELISA kit and sdAb-ELISA, respectively. The coefficients of variation of intra- and inter-assay were 1.79–4.57% and 5.54–9.98%, respectively. The sdAb-ELISA and commercial ELISA kit showed a consistency of 94.17% in clinical swine serum samples. Furthermore, the coincidence rate was 96.67% between the results detected by sdAb-ELISA and Western blot. Conclusion A specific, sensitive, and reproducible sdAb-ELISA was successfully developed, which offers a new, promising method to detect anti-SIV antibodies in swine serum.
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Affiliation(s)
- Taofeng Du
- Department of Preventive Veterinary Medicine, College of Veterinary Medicine, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China.,Scientific Observing and Experimental Station of Veterinary Pharmacology and Diagnostic Technology, Ministry of Agriculture, Yangling 712100, Shaanxi, People's Republic of China
| | - Guang Zhu
- Department of Preventive Veterinary Medicine, College of Veterinary Medicine, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China.,Scientific Observing and Experimental Station of Veterinary Pharmacology and Diagnostic Technology, Ministry of Agriculture, Yangling 712100, Shaanxi, People's Republic of China
| | - Xiaoping Wu
- Department of Preventive Veterinary Medicine, College of Veterinary Medicine, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China.,Scientific Observing and Experimental Station of Veterinary Pharmacology and Diagnostic Technology, Ministry of Agriculture, Yangling 712100, Shaanxi, People's Republic of China
| | - Junyang Fang
- Department of Preventive Veterinary Medicine, College of Veterinary Medicine, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China.,Scientific Observing and Experimental Station of Veterinary Pharmacology and Diagnostic Technology, Ministry of Agriculture, Yangling 712100, Shaanxi, People's Republic of China
| | - En-Min Zhou
- Department of Preventive Veterinary Medicine, College of Veterinary Medicine, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China.,Scientific Observing and Experimental Station of Veterinary Pharmacology and Diagnostic Technology, Ministry of Agriculture, Yangling 712100, Shaanxi, People's Republic of China
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5
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Zhou D, Pei C, Yang K, Ye J, Wan S, Li Q, Zhang L, Chen H, Cao S, Song Y. Development and application of a monoclonal-antibody-based blocking ELISA for detection of Japanese encephalitis virus NS1 antibodies in swine. Arch Virol 2019; 164:1535-1542. [PMID: 30900070 DOI: 10.1007/s00705-019-04218-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Accepted: 01/18/2019] [Indexed: 11/24/2022]
Abstract
Japanese encephalitis virus (JEV) is a zoonotic pathogen transmitted by Culex mosquitoes and is the leading cause of viral encephalitis in humans. JEV infection of swine, which are the main amplifying hosts for JEV, can cause reproductive failure in sows; in boars it can cause testitis and infertility. The prevalence of JEV in swine is a continuous threat to human health. A practical diagnostic method for monitoring JEV infection in swine herds is essential for control of the disease in both swine and humans. Here, we have identified a high-affinity anti-JEV NS1 monoclonal antibody (mAb) by indirect ELISA and utilized it for the development of a blocking ELISA (bELISA). The optimal NS1 protein coating concentration (2 μg/mL) and mAb working concentration (1 μg/mL) were determined by checkerboard titration. One hundred ten JEV-antibody-negative serum samples were used to establish 34.03% inhibition as the cutoff value for a negative result. By the bELISA, seroconversion in 80% of newly JEV-vaccinated pigs was detected by 7 days post-immunization, while by the commercial envelope-protein-based iELISA, seroconversion was detected in 20% of the newly vaccinated pigs. We found 98.7% agreement between the bELISA and the commercial iELISA when we tested 157 field samples using both methods. From an epidemiological survey of swine serum collected between 2014 and 2016, we found that the average JEV seropositive rate in unvaccinated commodity pigs was 8.1%, and in vaccinated boars and sows, it was 67.6%.
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Affiliation(s)
- Dengyuan Zhou
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, Hubei, People's Republic of China.,College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, Hubei, People's Republic of China.,Key Laboratory of Veterinary Diagnostic Reagents, Ministry of Agriculture, Wuhan, 430070, Hubei, People's Republic of China
| | - Chao Pei
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, Hubei, People's Republic of China.,College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, Hubei, People's Republic of China.,Key Laboratory of Veterinary Diagnostic Reagents, Ministry of Agriculture, Wuhan, 430070, Hubei, People's Republic of China
| | - Kelu Yang
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, Hubei, People's Republic of China.,College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, Hubei, People's Republic of China.,Key Laboratory of Veterinary Diagnostic Reagents, Ministry of Agriculture, Wuhan, 430070, Hubei, People's Republic of China
| | - Jing Ye
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, Hubei, People's Republic of China.,College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, Hubei, People's Republic of China.,Key Laboratory of Veterinary Diagnostic Reagents, Ministry of Agriculture, Wuhan, 430070, Hubei, People's Republic of China
| | - Shengfeng Wan
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, Hubei, People's Republic of China.,College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, Hubei, People's Republic of China.,Key Laboratory of Veterinary Diagnostic Reagents, Ministry of Agriculture, Wuhan, 430070, Hubei, People's Republic of China
| | - Qiuyan Li
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, Hubei, People's Republic of China.,College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, Hubei, People's Republic of China.,Key Laboratory of Veterinary Diagnostic Reagents, Ministry of Agriculture, Wuhan, 430070, Hubei, People's Republic of China
| | - Luping Zhang
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, Hubei, People's Republic of China.,College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, Hubei, People's Republic of China.,Key Laboratory of Veterinary Diagnostic Reagents, Ministry of Agriculture, Wuhan, 430070, Hubei, People's Republic of China
| | - Huanchun Chen
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, Hubei, People's Republic of China.,College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, Hubei, People's Republic of China.,Key Laboratory of Veterinary Diagnostic Reagents, Ministry of Agriculture, Wuhan, 430070, Hubei, People's Republic of China
| | - Shengbo Cao
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, Hubei, People's Republic of China.,College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, Hubei, People's Republic of China.,Key Laboratory of Veterinary Diagnostic Reagents, Ministry of Agriculture, Wuhan, 430070, Hubei, People's Republic of China
| | - Yunfeng Song
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, Hubei, People's Republic of China. .,College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, Hubei, People's Republic of China. .,Key Laboratory of Veterinary Diagnostic Reagents, Ministry of Agriculture, Wuhan, 430070, Hubei, People's Republic of China.
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6
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Trinh DQ, Ogawa H, Bui VN, Nguyen TTH, Gronsang D, Baatartsogt T, Kizito MK, AboElkhair M, Yamaguchi S, Nguyen VK, Imai K. Development of a blocking latex agglutination test for the detection of antibodies to chicken anemia virus. J Virol Methods 2015; 221:74-80. [PMID: 25952731 DOI: 10.1016/j.jviromet.2015.04.027] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2014] [Revised: 04/23/2015] [Accepted: 04/24/2015] [Indexed: 10/23/2022]
Abstract
A blocking latex agglutination test (b-LAT) developed in this study was evaluated for the detection of antibodies against chicken anemia virus (CAV) in chickens. Polystyrene latex beads were coupled with a neutralizing monoclonal antibody (mAb) to CAV (mAb-beads). When mAb-beads were mixed with antigens prepared from the lysate of MDCC-MSB1 cells infected with CAV, agglutination occurred. A short pre-incubation of CAV antigens with CAV-specific antiserum inhibited the agglutination of mAb-beads. The test results were obtained within 5min. The specificity of b-LAT was evaluated using sera from specific pathogen-free chickens and sera containing antibodies to avian influenza virus, Newcastle disease virus, infectious bursal disease virus, and Marek's disease virus; nonspecific agglutination and cross-reactivity with antibodies to unrelated viruses were not observed. The examination of 94 serum samples collected from commercial breeder chickens of various ages (17-63 weeks) revealed good agreement (93.6%, Kappa value=0.82) between b-LAT and a virus neutralization test, known to be most sensitive and specific in the detection of antibodies to CAV. These results indicate that b-LAT, a simple and rapid test, is a useful and reliable tool in CAV serology.
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Affiliation(s)
- Dai Quang Trinh
- Diagnostic Center for Animal Hygiene and Food Safety, Obihiro University of Agriculture and Veterinary Medicine, 2-11 Inada, Obihiro, Hokkaido 080-8555, Japan; National Institute of Veterinary Research, 86 Truong Chinh, Dong Da, Hanoi, Vietnam
| | - Haruko Ogawa
- Diagnostic Center for Animal Hygiene and Food Safety, Obihiro University of Agriculture and Veterinary Medicine, 2-11 Inada, Obihiro, Hokkaido 080-8555, Japan
| | - Vuong Nghia Bui
- Diagnostic Center for Animal Hygiene and Food Safety, Obihiro University of Agriculture and Veterinary Medicine, 2-11 Inada, Obihiro, Hokkaido 080-8555, Japan; National Institute of Veterinary Research, 86 Truong Chinh, Dong Da, Hanoi, Vietnam
| | - Tham Thi Hong Nguyen
- National Institute of Veterinary Research, 86 Truong Chinh, Dong Da, Hanoi, Vietnam
| | - Dulyatad Gronsang
- Diagnostic Center for Animal Hygiene and Food Safety, Obihiro University of Agriculture and Veterinary Medicine, 2-11 Inada, Obihiro, Hokkaido 080-8555, Japan; Faculty of Veterinary Science, Mahidol University, Nakhon Pathom, Thailand
| | - Tugsbaatar Baatartsogt
- Diagnostic Center for Animal Hygiene and Food Safety, Obihiro University of Agriculture and Veterinary Medicine, 2-11 Inada, Obihiro, Hokkaido 080-8555, Japan
| | - Mugimba Kahoza Kizito
- Diagnostic Center for Animal Hygiene and Food Safety, Obihiro University of Agriculture and Veterinary Medicine, 2-11 Inada, Obihiro, Hokkaido 080-8555, Japan; College of Veterinary Medicine, Animal Resources and Biosecurity, Makerere University, Kampala, Uganda
| | - Mohammed AboElkhair
- Diagnostic Center for Animal Hygiene and Food Safety, Obihiro University of Agriculture and Veterinary Medicine, 2-11 Inada, Obihiro, Hokkaido 080-8555, Japan; Faculty of Veterinary Medicine, University of Sadat City, Sadat City, Egypt
| | - Shigeo Yamaguchi
- Japan Livestock Technology Association, 3-20-9 Yushima, Bunkyo-ku, Tokyo 113-0034, Japan
| | - Viet Khong Nguyen
- National Institute of Veterinary Research, 86 Truong Chinh, Dong Da, Hanoi, Vietnam
| | - Kunitoshi Imai
- Diagnostic Center for Animal Hygiene and Food Safety, Obihiro University of Agriculture and Veterinary Medicine, 2-11 Inada, Obihiro, Hokkaido 080-8555, Japan.
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Abstract
Circoviruses are small, non-enveloped, icosahedral viruses that are unique among animal viruses in having circular, single-stranded DNA genomes. Their genomes are also the smallest possessed by animal viruses. The circovirus family currently comprises three members, chicken anaemia virus, porcine circovirus, and psittacine beak and feather disease virus, with pigeon circovirus being classified as a tentative member. Infections with each of the four circoviruses are associated with potentially fatal diseases in which virus-induced damage to lymphoid tissue and immunosuppression are common features. Experience with other animal virus families suggests that additional animal species will be infected by, as yet undiscovered, circoviruses and that these may display similar tissue tropism and disease-causing potential. Recent reports describing the association of circovirus-like viruses with immunodeficiency-related diseases of geese and southern black-backed gulls suggest that circovirus infections of avian species may be more common than previously recognized, and prompt the question of whether novel circoviruses infect poultry to cause clinical and/or subclinical diseases that may be economically important. This review has three purposes. First, it is designed to summarize the currently available information about the classified circoviruses and viruses that are regarded as circovirus-like. Second, it aims to alert the readership to the possibility that other avian species, including commercial poultry, may be infected with novel circoviruses. Finally, possible methods for discovering novel circoviruses and for controlling infections by such viruses are suggested.
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Affiliation(s)
- D Todd
- Veterinary Sciences Division, Department of Agriculture and Rural Development for Northern Ireland, Stoney Road, Stormont, Belfast BT4 3SD, UK
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8
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Bhatt P, Shukla SK, Mahendran M, Dhama K, Chawak MM, Kataria JM. Prevalence of chicken infectious anaemia virus (CIAV) in commercial poultry flocks of northern India: a serological survey. Transbound Emerg Dis 2011; 58:458-60. [PMID: 21414182 DOI: 10.1111/j.1865-1682.2011.01215.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
Globally, the chicken infectious anaemia virus (CIAV) has gained much importance as an immunosuppressive and economically important emerging pathogen of poultry. In recent years, the virus has been detected and isolated from poultry flocks of India. The present study reports the first sero-epidemiological investigation of the presence of CIAV infection in poultry flocks of the country. A total of 404 serum samples were collected from chicken flocks of eleven poultry farms, which contain a total of 0.34 million birds from four Northern states, suspected of having chicken infectious anaemia (CIA). Screening of the sera samples using a commercially available enzyme-linked immunosorbent assay (ELISA) kit revealed 351 serum samples (86.88%) to be positive for CIAV antibodies. A high CIAV prevalence rate recorded in the present investigation, along with earlier virus detection reports, indicates the widespread distribution of the virus and that CIAV should be considered an economically important poultry pathogen affecting poultry industry of India. Extensive nationwide epidemiological studies are suggested for revealing the economic impact of CIA and to initiate further research along with devising and adapting suitable prevention and control strategies especially the use of suitable vaccines for safeguarding poultry health and production in the country.
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Affiliation(s)
- P Bhatt
- Veterinary Clinics, College of Veterinary and Animal Sciences, Govind Ballabh Pant University of Agriculture and Technology, Pantnagar, Udham Singh Nagar, Uttarakhand, India
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9
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Lee MS, Lien YY, Feng SH, Huang RL, Tsai MC, Chang WT, Chen HJ. Production of chicken anemia virus (CAV) VP1 and VP2 protein expressed by recombinant Escherichia coli. Process Biochem 2009. [DOI: 10.1016/j.procbio.2008.11.016] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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10
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Simeonov K, Doumanova L. Development of Immunofluorescence-Based Virus Neutralization Test for the Detection of Antibodies to Chicken Anemia Virus. BIOTECHNOL BIOTEC EQ 2005. [DOI: 10.1080/13102818.2005.10817268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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11
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Miller MM, Ealey KA, Oswald WB, Schat KA. Detection of chicken anemia virus DNA in embryonal tissues and eggshell membranes. Avian Dis 2004; 47:662-71. [PMID: 14562895 DOI: 10.1637/7007] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Chicken infectious anemia virus (CIAV) is a ubiquitous and highly resistant virus of chickens that causes anemia and death in chicks less than 3 wk of age and immunosuppression in chickens older than 3 wk of age. The production of specific-pathogen-free eggs free of CIAV is essential for research and vaccine production. Currently, flocks are screened for CIAV by antibody tests to ensure freedom from CIAV infection. Recent evidence, however, indicates that chickens may carry and vertically transmit CIAV DNA independently of their antibody status. In this study, we tested embryos and eggshell membrane residues by nested polymerase chain reaction (PCR) as a sensitive method of detecting CIAV DNA. CIAV DNA could be detected in the blastodisks and semen obtained from antibody-positive and -negative chickens. Examination of different tissues between 18 and 20 days of incubation indicated that many but not all organs of individual embryos were positive. The lymphoid organs and gonads had the highest incidence of CIAV DNA, which was significantly different (P < 0.05) from the incidence in the liver. Eggshell membrane samples from embryos or newly hatched chicks were an excellent noninvasive source for the detection of CIAV DNA, identifying significantly more positive embryos than did pooled lymphoid organs. The use of dexamethasone injections as a method to improve the detection of carrier birds did not result in an increase of vertical transmission or cause seroconversion in the treated hens. A combination of testing eggshell membrane residues at hatch and periodic testing of blood DNA by nested PCR can be used to identify chickens carrying CIAV DNA and may be used to eradicate carrier birds.
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Affiliation(s)
- Myrna M Miller
- Unit of Avian Health, Department of Microbiology and Immunology, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853, USA
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Tannock GA, Tan J, Mawhinney KA, Todd D, O'Rourke D, Bagust TJ. A modified blocking ELISA for the detection of antibody to chicken anaemia virus using an Australian strain. Aust Vet J 2003; 81:428-30. [PMID: 15084059 DOI: 10.1111/j.1751-0813.2003.tb11556.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- G A Tannock
- Department of Biotechnology and Environmental Biology, RMIT University, PO Box 71, Bundoora, Victoria 3083.
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13
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Affiliation(s)
- D Todd
- Department of Agriculture and Rural Development, Veterinary Sciences Division, Belfast BT4 3SD, Northern Ireland
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Isa G, Pfister K, Kaaden OR, Czerny CP. Development of a monoclonal blocking ELISA for the detection of antibodies against fowlpox virus. JOURNAL OF VETERINARY MEDICINE. B, INFECTIOUS DISEASES AND VETERINARY PUBLIC HEALTH 2002; 49:21-3. [PMID: 11911587 DOI: 10.1046/j.1439-0450.2002.00533.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
To provide a fast and easy method to detect antibodies against fowlpox virus (FWPV) particularly in high numbers of chicken sera we established a monoclonal blocking enzyme-linked immunosorbent assay (ELISA). We chose two different monoclonal antibodies (mAb), anti-FWPV 3D9/2B3 and anti-FWPV 8F3/2E11, which are both directed against the 39-kDa protein of FWPV strain HP-1. The blocking ELISA depends on the blocking of mAb binding to solid-phase antigen in the presence of positive serum. For an epidemiological study a total of 184 serum samples from Gambian chicken flocks were analysed against each of the mAbs. Four of the sera were shown to contain FWPV antibodies. These four sera showed a positive cut-off value of more than 50% inhibition exclusively in the test against the mAb anti-FWPV 8F3/2E11. This phenomenon can be explained by the binding of the mAbs to distinct epitopes on the same protein.
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Affiliation(s)
- G Isa
- Bavarian Animal Health Service, Poing, Germany
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