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Emeru BA, Dame DG, Desta HT. Molecular Detection and Serological Investigation of Newcastle Disease in Intensive, Semi-Intensive, and Backyard Production Systems in Central and Southwestern Areas of Ethiopia. VETERINARY MEDICINE (AUCKLAND, N.Z.) 2024; 15:141-148. [PMID: 38742180 PMCID: PMC11090124 DOI: 10.2147/vmrr.s445261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 05/05/2024] [Indexed: 05/16/2024]
Abstract
Purpose The purpose of this research is to detect Newcastle disease virus and to assess the seropositivity among backyard, semi-intensive, and intensive farms located in central and southwestern areas of Ethiopia. Material and Methods A total of 239 oropharyngeal and cloacal swab samples were collected from symptomatic birds found in Holeta, Burayu, Jimma towns as well as Seka Chekorsa and Nadhigibe woredas of Jimma Zone. In addition, ninety blood samples were collected from wing veins of unvaccinated birds found in the study areas of Jimma zone. Side-by-side information related to risk factors estimated to contribute to the susceptibility of the disease was collected by interviewing owners of sampled birds. Reverse transcription polymerase-chain reaction (RT-PCR) was conducted to detect NDV. Likewise, Enzyme-linked immunosorbent assay (ELISA) was performed to determine the seropositivity of ND. Results The proportion of samples where NDV was detected was 24.6%. Similarly, 68.9% of the sampled birds were seropositive. It was observed that adult birds were more likely to encounter the disease than youngs (OR = 11.6; 95% CI: 4.0-33.3; P = 0.000). Birds owned by respondents who leave diseased birds in the flock were more likely infected (OR = 6.2; 95% CI: 1.8-21.2; P=0.004) as compared to those isolated and mode of disposal of dead chicken significantly affect exposure (OR = 0.13; 95% CI: 0.10-4.88; P = 0.044). Likewise, access to veterinary services highly likely reduces susceptibility to the disease (OR = 12.4; 95% CI: 3.2-46.9; P = 0.000). It was also found that birds farmed intensively were the most at risk (OR = 2.8; 95% CI: 0.58-13.71; P = 0.199). Conclusion Detection of ND from a significant proportion of sampled birds and their high seropositivity percentage revealed the circulation of the virus in the study areas.
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Affiliation(s)
- Bezina Arega Emeru
- Animal Biotechnology Research Program, National Agricultural Biotechnology Research Center, Ethiopian Institute of Agricultural Research, Holeta, Ethiopia
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Lu S, Ma B, Zhou H, Li Y, Qiao Z, Xiao T, Li H, Wang B, Cui M, Zhang S, Chang J, Du T, Liu J, Wang H. Smartphone recognition-based immune microparticles for rapid on-site visual data-sharing detection of Newcastle disease virus. Talanta 2023; 252:123845. [DOI: 10.1016/j.talanta.2022.123845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 08/02/2022] [Accepted: 08/12/2022] [Indexed: 10/15/2022]
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Norouzi P, Nezamoddini M, Safarnejad MR. Antibody-oriented immobilization for newcastle disease virus detection using label free electrochemical immunosensor. CHEMICAL PAPERS 2021. [DOI: 10.1007/s11696-021-01546-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Yang F, Li Y, Jin X, Xu Q, Cheng F, Wang X. Immunosensor-based rapid quantitative detection of Newcastle disease virus antibodies using innovative gold immunochromatographic assay. J Appl Microbiol 2020; 129:1751-1757. [PMID: 32365426 DOI: 10.1111/jam.14688] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 04/14/2020] [Accepted: 04/27/2020] [Indexed: 11/29/2022]
Abstract
AIMS A novel quantitative method for rapid Newcastle disease virus (NDV) antibody detection was developed based on an innovative gold immunochromatographic assay with a quantitative immunosensor. METHODS AND RESULTS NDV antibody-detecting test strips containing a two-reaction system and double-test lines (T1, T2) were prepared. The test results were judged according to the signal ratio between the test and control lines as measured by the quantitative immunosensor. The minimum detection limit of the test strips for NDV antibodies was 22 titres. In addition, the assay was highly specific because only NDV antibodies produced visible test lines on the strip. The clinical application of the strips was tested by detecting NDV antibodies in 506 serum samples collected from chickens. The results showed a coincidence of 92·49% with those of the haemagglutination inhibition assay. CONCLUSIONS The strips were successfully prepared and showed high specificity towards NDV, sensitivity and stability. SIGNIFICANCE AND IMPACT OF THE STUDY This study describes a new method for detection of NDV antibody and provides a reference basis for rapid and quantitative monitoring of NDV antibodies. This new method overcomes the limitation of the existing colloidal gold immunochromatography, which only produces qualitative or semi-quantitative results.
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Affiliation(s)
- F Yang
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, P.R. China.,College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, P.R. China
| | - Y Li
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, P.R. China.,College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, P.R. China
| | - X Jin
- Hubei Provincial Institute of Veterinary Drug Control, Wuhan, P.R. China
| | - Q Xu
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, P.R. China
| | - F Cheng
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, P.R. China
| | - X Wang
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, P.R. China.,College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, P.R. China
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Yang F, Feng S, Li Y, He Y, Jin X, Wang X, Zhou Z, Xiao Y, Bi D. Development of immunochromatographic test strips for rapid, quantitative detection of H9AIV antibodies. J Chromatogr B Analyt Technol Biomed Life Sci 2018; 1095:59-64. [DOI: 10.1016/j.jchromb.2018.07.024] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Revised: 07/07/2018] [Accepted: 07/20/2018] [Indexed: 11/16/2022]
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Benhaiem S, Marescot L, Hofer H, East ML, Lebreton JD, Kramer-Schadt S, Gimenez O. Robustness of Eco-Epidemiological Capture-Recapture Parameter Estimates to Variation in Infection State Uncertainty. Front Vet Sci 2018; 5:197. [PMID: 30211175 PMCID: PMC6121098 DOI: 10.3389/fvets.2018.00197] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Accepted: 07/27/2018] [Indexed: 12/02/2022] Open
Abstract
Estimating eco-epidemiological parameters in free-ranging populations can be challenging. As known individuals may be undetected during a field session, or their health status uncertain, the collected data are typically "imperfect". Multi-event capture-mark-recapture (MECMR) models constitute a substantial methodological advance by accounting for such imperfect data. In these models, animals can be "undetected" or "detected" at each time step. Detected animals can be assigned an infection state, such as "susceptible" (S), "infected" (I), or "recovered" (R), or an "unknown" (U) state, when for instance no biological sample could be collected. There may be heterogeneity in the assignment of infection states, depending on the manifestation of the disease in the host or the diagnostic method. For example, if obtaining the samples needed to prove viral infection in a detected animal is difficult, this can result in a low chance of assigning the I state. Currently, it is unknown how much uncertainty MECMR models can tolerate to provide reliable estimates of eco-epidemiological parameters and whether these parameters are sensitive to heterogeneity in the assignment of infection states. We used simulations to assess how estimates of the survival probability of individuals in different infection states and the probabilities of infection and recovery responded to (1) increasing infection state uncertainty (i.e., the proportion of U) from 20 to 90%, and (2) heterogeneity in the probability of assigning infection states. We simulated data, mimicking a highly virulent disease, and used SIR-MECMR models to quantify bias and precision. For most parameter estimates, bias increased and precision decreased gradually with state uncertainty. The probabilities of survival of I and R individuals and of detection of R individuals were very robust to increasing state uncertainty. In contrast, the probabilities of survival and detection of S individuals, and the infection and recovery probabilities showed high biases and low precisions when state uncertainty was >50%, particularly when the assignment of the S state was reduced. Considering this specific disease scenario, SIR-MECMR models are globally robust to state uncertainty and heterogeneity in state assignment, but the previously mentioned parameter estimates should be carefully interpreted if the proportion of U is high.
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Affiliation(s)
- Sarah Benhaiem
- Department of Ecological Dynamics, Leibniz Institute for Zoo and Wildlife Research, Berlin, Germany
| | - Lucile Marescot
- Department of Ecological Dynamics, Leibniz Institute for Zoo and Wildlife Research, Berlin, Germany
- CEFE, CNRS, University Montpellier, University Paul Valéry Montpellier 3, EPHE, IRD, Montpellier, France
| | - Heribert Hofer
- Department of Ecological Dynamics, Leibniz Institute for Zoo and Wildlife Research, Berlin, Germany
- Department of Veterinary Medicine, Freie Universität Berlin, Berlin, Germany
- Department of Biology, Chemistry, and Pharmacy, Berlin, Germany
| | - Marion L. East
- Department of Ecological Dynamics, Leibniz Institute for Zoo and Wildlife Research, Berlin, Germany
| | - Jean-Dominique Lebreton
- CEFE, CNRS, University Montpellier, University Paul Valéry Montpellier 3, EPHE, IRD, Montpellier, France
| | - Stephanie Kramer-Schadt
- Department of Ecological Dynamics, Leibniz Institute for Zoo and Wildlife Research, Berlin, Germany
- Department of Ecology, Technische Universität Berlin, Berlin, Germany
| | - Olivier Gimenez
- CEFE, CNRS, University Montpellier, University Paul Valéry Montpellier 3, EPHE, IRD, Montpellier, France
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Lurier T, Delignette-Muller ML, Rannou B, Strube C, Arcangioli MA, Bourgoin G. Diagnosis of bovine dictyocaulosis by bronchoalveolar lavage technique: A comparative study using a Bayesian approach. Prev Vet Med 2018; 154:124-131. [PMID: 29685436 DOI: 10.1016/j.prevetmed.2018.03.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Revised: 02/09/2018] [Accepted: 03/20/2018] [Indexed: 11/16/2022]
Abstract
Bovine dictyocaulosis is a pulmonary parasitic disease present in temperate countries, with potential important clinical and economic impacts. The Baermann technique is routinely used despite its low sensitivity in adult cows. Recently developed serological tests seem to offer better sensitivity, but validations of these tests in field conditions are few. We aimed to study two non-previously evaluated diagnosis methods of dictyocaulosis based on bronchoalveolar lavage sampling (BAL), which allows finding lungworm stages in the lungs as well as determination of eosinophilia. We compared them to the Baermann technique and serological tests. As no gold standard was available, we performed a Bayesian analysis by the simultaneous use of latent class and mixture models. The study was carried out during the 2015 pasture season on 60 adult cows originating from 11 herds with clinical signs of dictyocaulosis, and 10 apparently healthy cows originating from the teaching herd of VetAgro Sup, in France. Prevalence of infection was highly variable among herds with clinical signs (10-90%). Despite a maximal specificity (100%), the sensitivity of parasitological methods was low (7.4% for the Baermann sedimentation and 24.7% for the examination of BAL fluids). Better results were observed with serology (Se = 74.9%, Sp = 85.5%) with an optimal cut-off value estimated at 0.397 for the optical density ratio. Even better results were obtained with the count of eosinophil in BAL (Se = 89.4%, Sp = 85.2%) with an optimal cut-off value estimated at 4.77% for the eosinophil proportion. The BAL is a relevant diagnostic method of dictyocaulosis for practitioners due to the opportunity to perform two analyses (direct parasitic research and the eosinophil count) and to its good sensitivity and specificity.
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Affiliation(s)
- Thibaut Lurier
- Université de Lyon, Université Lyon 1, CNRS, VetAgro Sup, UMR 5558, Laboratoire de Biométrie et Biologie Evolutive, F-69622 Villeurbanne, France.
| | - Marie Laure Delignette-Muller
- Université de Lyon, Université Lyon 1, CNRS, VetAgro Sup, UMR 5558, Laboratoire de Biométrie et Biologie Evolutive, F-69622 Villeurbanne, France
| | - Benoit Rannou
- Université de Lyon, VetAgro Sup, 1 Avenue Bourgelat, BP 83, F-69280 Marcy l'Etoile, France
| | - Christina Strube
- Institute for Parasitology, Centre for Infection Medicine, University of Veterinary Medicine Hannover, Buenteweg 17, D-30559 Hannover, Germany
| | - Marie-Anne Arcangioli
- Université de Lyon, VetAgro Sup, Anses, UMR Mycoplasmes des Ruminants, F-69280 Marcy l'Etoile, France
| | - Gilles Bourgoin
- Université de Lyon, Université Lyon 1, CNRS, VetAgro Sup, UMR 5558, Laboratoire de Biométrie et Biologie Evolutive, F-69622 Villeurbanne, France
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Tian B, Ma J, Zardán Gómez de la Torre T, Bálint Á, Donolato M, Hansen MF, Svedlindh P, Strömberg M. Rapid Newcastle Disease Virus Detection Based on Loop-Mediated Isothermal Amplification and Optomagnetic Readout. ACS Sens 2016. [DOI: 10.1021/acssensors.6b00379] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Bo Tian
- Department
of Engineering Sciences, Uppsala University, The Ångström Laboratory,
Box 534, SE-751 21 Uppsala, Sweden
| | - Jing Ma
- Department
of Immunology, Genetics and Pathology, Uppsala University, The Rudbeck Laboratory, SE-751 85 Uppsala, Sweden
| | | | - Ádám Bálint
- National
Food Chain Safety Office, Veterinary Diagnostic Directorate, Tábornok
u. 2., H-1143 Budapest, Hungary
| | - Marco Donolato
- BluSense Diagnostics, Fruebjergvej
3, 2100 Copenhagen, Denmark
| | - Mikkel Fougt Hansen
- Department
of Micro- and Nanotechnology, Technical University of Denmark, DTU Nanotech, Building 345 East, DK-2800 Kongens Lyngby, Denmark
| | - Peter Svedlindh
- Department
of Engineering Sciences, Uppsala University, The Ångström Laboratory,
Box 534, SE-751 21 Uppsala, Sweden
| | - Mattias Strömberg
- Department
of Engineering Sciences, Uppsala University, The Ångström Laboratory,
Box 534, SE-751 21 Uppsala, Sweden
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