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Stefanova EP, Sierra E, Fernández A, Quesada-Canales O, Paz-Sánchez Y, Colom-Rivero A, Espinosa de los Monteros A, Herráez P, Domínguez L, Bezos J, Pérez-Sancho M, Moreno I, Risalde MA, Andrada M. Detection of caprine paratuberculosis (Johne's disease) in pre- and post-vaccinated herds: morphological diagnosis, lesion grading, and bacterial identification. Front Vet Sci 2024; 11:1395928. [PMID: 39144076 PMCID: PMC11322454 DOI: 10.3389/fvets.2024.1395928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Accepted: 07/15/2024] [Indexed: 08/16/2024] Open
Abstract
Samples from the mesenteric lymph nodes (MS LNs) and ileocecal valves (ICV) of 105 goats, comprising 61 non-vaccinated and 44 vaccinated against Mycobacterium avium subspecies paratuberculosis (MAP), were collected at slaughter from a farm with a confirmed history of paratuberculosis (PTB). These goats had subclinical infections. PTB-compatible lesions in the MS LNs, ICV lamina propria (LP), and Peyer's patches (PPs) were graded separately. Furthermore, the load of acid-fast bacilli was quantified using Ziehl-Neelsen staining (ZN), MAP antigens by immunohistochemistry (IHC), and MAP DNA by PCR targeting the IS900 sequence. Gross PTB-compatible lesions were found in 39% of the goats, with 31.72% vaccinated (V) and 68.29% non-vaccinated (nV). Histopathological lesions induced MAP were observed in 58% of the animals, with 36.07% vaccinated and 63.93% non-vaccinated. The inclusion of histopathology as a diagnostic tool led to a 28% increase in diagnosed cases in MS LNs and 86.05% in ICV. Grade IV granulomas with central mineralization and necrosis were the most common lesions in MS LNs. In the ICV, mild granulomatous enteritis with multifocal foci of epithelioid macrophages was predominant, occurring more frequently in the PPs than in the LP. Furthermore, statistical differences in the presence of histopathological lesions between vaccinated and non-vaccinated goats were noted in MS LNs, ICV LPs, and ICV PPs. Non-vaccinated animals showed higher positivity rates in ZN, IHC, and PCR tests, underscoring the benefits of anti-MAP vaccination in reducing PTB lesions and bacterial load in target organs. Our findings emphasize the necessity of integrating gross and histopathological assessments with various laboratory techniques for accurate morphological and etiological diagnosis of PTB in both vaccinated and non-vaccinated goats with subclinical disease. However, further studies are required to refine sampling protocols for subclinical PTB in goats to enhance the consistency of diagnostic tools.
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Affiliation(s)
- Elena Plamenova Stefanova
- Division of Animal Histology and Pathology, Veterinary School, Institute of Animal Health and Food Safety (IUSA), University of Las Palmas de Gran Canaria, Arucas, Spain
- Departament of Morphology, Veterinary School, University of Las Palmas de Gran Canaria, Arucas, Spain
| | - Eva Sierra
- Division of Animal Histology and Pathology, Veterinary School, Institute of Animal Health and Food Safety (IUSA), University of Las Palmas de Gran Canaria, Arucas, Spain
- Departament of Morphology, Veterinary School, University of Las Palmas de Gran Canaria, Arucas, Spain
| | - Antonio Fernández
- Division of Animal Histology and Pathology, Veterinary School, Institute of Animal Health and Food Safety (IUSA), University of Las Palmas de Gran Canaria, Arucas, Spain
- Departament of Morphology, Veterinary School, University of Las Palmas de Gran Canaria, Arucas, Spain
| | - Oscar Quesada-Canales
- Division of Animal Histology and Pathology, Veterinary School, Institute of Animal Health and Food Safety (IUSA), University of Las Palmas de Gran Canaria, Arucas, Spain
- Departament of Morphology, Veterinary School, University of Las Palmas de Gran Canaria, Arucas, Spain
| | - Yania Paz-Sánchez
- Division of Animal Histology and Pathology, Veterinary School, Institute of Animal Health and Food Safety (IUSA), University of Las Palmas de Gran Canaria, Arucas, Spain
| | - Ana Colom-Rivero
- Division of Animal Histology and Pathology, Veterinary School, Institute of Animal Health and Food Safety (IUSA), University of Las Palmas de Gran Canaria, Arucas, Spain
| | - Antonio Espinosa de los Monteros
- Division of Animal Histology and Pathology, Veterinary School, Institute of Animal Health and Food Safety (IUSA), University of Las Palmas de Gran Canaria, Arucas, Spain
- Departament of Morphology, Veterinary School, University of Las Palmas de Gran Canaria, Arucas, Spain
| | - Pedro Herráez
- Division of Animal Histology and Pathology, Veterinary School, Institute of Animal Health and Food Safety (IUSA), University of Las Palmas de Gran Canaria, Arucas, Spain
- Departament of Morphology, Veterinary School, University of Las Palmas de Gran Canaria, Arucas, Spain
| | - Lucas Domínguez
- VISAVET Health Surveillance Centre, Complutense University of Madrid, Madrid, Spain
- Departamento de Sanidad Animal, Facultad de Veterinaria, Universidad Complutense de Madrid, Madrid, Spain
| | - Javier Bezos
- VISAVET Health Surveillance Centre, Complutense University of Madrid, Madrid, Spain
- Departamento de Sanidad Animal, Facultad de Veterinaria, Universidad Complutense de Madrid, Madrid, Spain
| | - Marta Pérez-Sancho
- VISAVET Health Surveillance Centre, Complutense University of Madrid, Madrid, Spain
- Departamento de Sanidad Animal, Facultad de Veterinaria, Universidad Complutense de Madrid, Madrid, Spain
| | - Inmaculada Moreno
- Servicio de Inmunología Microbiana, Centro Nacional de Microbiología, Instituto de Investigación Carlos III, Madrid, Spain
| | - María A. Risalde
- Departamento de Anatomía y Anatomía Patológica Comparadas y Toxicología, Grupo de Investigación GISAZ, UIC Zoonosis y Enfermedades Emergentes ENZOEM, Universidad de Córdoba, Campus de Rabanales, Edificio Sanidad Animal, Córdoba, Spain
- Centro de Investigación Biomédica en Red Enfermedades Infecciosas, Instituto de Salud Carlos III (CIBERINFEC, ISCIII), Madrid, Spain
| | - Marisa Andrada
- Division of Animal Histology and Pathology, Veterinary School, Institute of Animal Health and Food Safety (IUSA), University of Las Palmas de Gran Canaria, Arucas, Spain
- Departament of Morphology, Veterinary School, University of Las Palmas de Gran Canaria, Arucas, Spain
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Yang Y, Chen YZ, Xia T. Optimizing antigen selection for the development of tuberculosis vaccines. CELL INSIGHT 2024; 3:100163. [PMID: 38572176 PMCID: PMC10987857 DOI: 10.1016/j.cellin.2024.100163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 03/08/2024] [Accepted: 03/11/2024] [Indexed: 04/05/2024]
Abstract
Tuberculosis (TB) remains a prevalent global infectious disease caused by genetically closely related tubercle bacilli in Mycobacterium tuberculosis complex (MTBC). For a century, the Bacillus Calmette-Guérin (BCG) vaccine has been the primary preventive measure against TB. While it effectively protects against extrapulmonary forms of pediatric TB, it lacks consistent efficacy in providing protection against pulmonary TB in adults. Consequently, the exploration and development of novel TB vaccines, capable of providing broad protection to populations, have consistently constituted a prominent area of interest in medical research. This article presents a concise overview of the novel TB vaccines currently undergoing clinical trials, discussing their classification, protective efficacy, immunogenicity, advantages, and limitations. In vaccine development, the careful selection of antigens that can induce strong and diverse specific immune responses is essential. Therefore, we have summarized the molecular characteristics, biological function, immunogenicity, and relevant studies associated with the chosen antigens for TB vaccines. These insights gained from vaccines and immunogenic proteins will inform the development of novel mycobacterial vaccines, particularly mRNA vaccines, for effective TB control.
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Affiliation(s)
- Yang Yang
- State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary Medicine, Lanzhou University, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, 730000, China
| | - Yi-Zhen Chen
- State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary Medicine, Lanzhou University, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, 730000, China
| | - Tian Xia
- State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary Medicine, Lanzhou University, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, 730000, China
- Gansu Province Research Center for Basic Disciplines of Pathogen Biology, Lanzhou, 730046, China
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Velasco C, Ortega J, Ricón J, Romero B, de Juan L, Domínguez L, Domínguez M, Moreno I, Álvarez J, Bezos J. Effect of a recent intradermal test on the specificity of P22 ELISA for the diagnosis of caprine tuberculosis. Front Vet Sci 2024; 11:1358413. [PMID: 38389583 PMCID: PMC10881819 DOI: 10.3389/fvets.2024.1358413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Accepted: 01/24/2024] [Indexed: 02/24/2024] Open
Abstract
Caprine tuberculosis (TB) is a zoonotic disease caused by members of the Mycobacterium tuberculosis complex. TB eradication programs in goats are based on the single and comparative intradermal tuberculin tests (SITT and CITT, respectively). Antibody-based diagnostic techniques have emerged as potential diagnostic tools for TB. P22 ELISA has been previously evaluated using samples collected after the intradermal tuberculin tests to maximize the sensitivity, a phenomenon known as booster effect. However, there is no information available on whether the use of this diagnostic strategy could lead to a decrease of its specificity (Sp). The aim of the present study was to elucidate the interference effect of a recent CITT on the Sp of the P22 ELISA in serum and milk samples collected at different times after the CITT from a TB-free herd (n = 113). The number of reactors to P22 ELISA was significantly higher (p < 0.01) on serum samples collected 15 days post-CITT compared to day 0, showing a decrease in Sp from 99.1% (95% CI; 95.2-99.8%) to 88.5% (95% CI; 81.3-93.2%). The number of reactors and the quantitative values of P22 ELISA were significantly higher (p < 0.01) in serum samples compared to milk. No significant (p > 0.05) changes in the Sp of the P22 ELISA were observed throughout the different time samplings using milk No significant (p > 0.05) changes were observed on days 30 and 60 post-CITT. In conclusion, the booster effect strategy may significantly decrease the Sp of P22 ELISA in TB-free herds when serum samples are used but not when milk is tested.
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Affiliation(s)
- Carlos Velasco
- VISAVET Health Surveillance Centre, Complutense University of Madrid, Madrid, Spain
| | - Javier Ortega
- VISAVET Health Surveillance Centre, Complutense University of Madrid, Madrid, Spain
- Facultad de Veterinaria, Departamento de Sanidad Animal, Universidad Complutense de Madrid, Madrid, Spain
| | - Jaime Ricón
- VISAVET Health Surveillance Centre, Complutense University of Madrid, Madrid, Spain
| | - Beatriz Romero
- VISAVET Health Surveillance Centre, Complutense University of Madrid, Madrid, Spain
- Facultad de Veterinaria, Departamento de Sanidad Animal, Universidad Complutense de Madrid, Madrid, Spain
| | - Lucía de Juan
- VISAVET Health Surveillance Centre, Complutense University of Madrid, Madrid, Spain
- Facultad de Veterinaria, Departamento de Sanidad Animal, Universidad Complutense de Madrid, Madrid, Spain
| | - Lucas Domínguez
- VISAVET Health Surveillance Centre, Complutense University of Madrid, Madrid, Spain
- Facultad de Veterinaria, Departamento de Sanidad Animal, Universidad Complutense de Madrid, Madrid, Spain
| | - Mercedes Domínguez
- Unidad de Inmunología Microbiana, Centro Nacional de Microbiología, Instituto de Salud Carlos III, Madrid, Spain
| | - Inmaculada Moreno
- Unidad de Inmunología Microbiana, Centro Nacional de Microbiología, Instituto de Salud Carlos III, Madrid, Spain
| | - Julio Álvarez
- VISAVET Health Surveillance Centre, Complutense University of Madrid, Madrid, Spain
- Facultad de Veterinaria, Departamento de Sanidad Animal, Universidad Complutense de Madrid, Madrid, Spain
| | - Javier Bezos
- VISAVET Health Surveillance Centre, Complutense University of Madrid, Madrid, Spain
- Facultad de Veterinaria, Departamento de Sanidad Animal, Universidad Complutense de Madrid, Madrid, Spain
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Hunter L, Ruedas-Torres I, Agulló-Ros I, Rayner E, Salguero FJ. Comparative pathology of experimental pulmonary tuberculosis in animal models. Front Vet Sci 2023; 10:1264833. [PMID: 37901102 PMCID: PMC10602689 DOI: 10.3389/fvets.2023.1264833] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Accepted: 09/22/2023] [Indexed: 10/31/2023] Open
Abstract
Research in human tuberculosis (TB) is limited by the availability of human tissues from patients, which is often altered by therapy and treatment. Thus, the use of animal models is a key tool in increasing our understanding of the pathogenesis, disease progression and preclinical evaluation of new therapies and vaccines. The granuloma is the hallmark lesion of pulmonary tuberculosis, regardless of the species or animal model used. Although animal models may not fully replicate all the histopathological characteristics observed in natural, human TB disease, each one brings its own attributes which enable researchers to answer specific questions regarding TB immunopathogenesis. This review delves into the pulmonary pathology induced by Mycobacterium tuberculosis complex (MTBC) bacteria in different animal models (non-human primates, rodents, guinea pigs, rabbits, cattle, goats, and others) and compares how they relate to the pulmonary disease described in humans. Although the described models have demonstrated some histopathological features in common with human pulmonary TB, these data should be considered carefully in the context of this disease. Further research is necessary to establish the most appropriate model for the study of TB, and to carry out a standard characterisation and score of pulmonary lesions.
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Affiliation(s)
- Laura Hunter
- Pathology Department, UK Health Security Agency (UKHSA), Porton Down, Salisbury, United Kingdom
- School of Biosciences and Medicine, University of Surrey, Guildford, United Kingdom
| | - Inés Ruedas-Torres
- Pathology Department, UK Health Security Agency (UKHSA), Porton Down, Salisbury, United Kingdom
- Department of Anatomy and Comparative Pathology and Toxicology, UIC Zoonosis y Enfermedades Emergentes ENZOEM, University of Córdoba, International Excellence Agrifood Campus, Córdoba, Spain
| | - Irene Agulló-Ros
- Pathology Department, UK Health Security Agency (UKHSA), Porton Down, Salisbury, United Kingdom
- Department of Anatomy and Comparative Pathology and Toxicology, UIC Zoonosis y Enfermedades Emergentes ENZOEM, University of Córdoba, International Excellence Agrifood Campus, Córdoba, Spain
| | - Emma Rayner
- Pathology Department, UK Health Security Agency (UKHSA), Porton Down, Salisbury, United Kingdom
| | - Francisco J. Salguero
- Pathology Department, UK Health Security Agency (UKHSA), Porton Down, Salisbury, United Kingdom
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Melgarejo C, Cobos A, Planas C, Fondevila J, Martín M, Cervera Z, Cantero G, Moll X, Espada Y, Domingo M, Vidal E, Pérez de Val B. Comparison of the pathological outcome and disease progression of two Mycobacterium caprae experimental challenge models in goats: endobronchial inoculation vs. intranasal nebulization. Front Microbiol 2023; 14:1236834. [PMID: 37637110 PMCID: PMC10450934 DOI: 10.3389/fmicb.2023.1236834] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Accepted: 07/25/2023] [Indexed: 08/29/2023] Open
Abstract
Background Goats are natural hosts of tuberculosis (TB) and are a valid animal model to test new vaccines and treatments to control this disease. In this study, a new experimental model of TB in goats based on the intranasal nebulization of Mycobacterium caprae was assessed in comparison with the endobronchial route of infection. Methods Fourteen animals were divided into two groups of seven and challenged through the endobronchial (EB) and intranasal (IN) routes, respectively. Clinical signs, rectal temperature, body weight, and immunological responses from blood samples were followed up throughout the experiment. All goats were euthanized at 9 weeks post-challenge. Gross pathological examination, analysis of lung lesions using computed tomography, and bacterial load quantification in pulmonary lymph nodes (LNs) by qPCR were carried out. Results The IN-challenged group showed a slower progression of the infection: delayed clinical signs (body weight gain reduction, peak of temperature, and apparition of other TB signs) and delayed immunological responses (IFN-γ peak response and seroconversion). At the end of the experiment, the IN group also showed significantly lower severity and dissemination of lung lesions, lower mycobacterial DNA load and volume of lesions in pulmonary LN, and higher involvement of the nasopharyngeal cavity and volume of the lesions in the retropharyngeal LN. Conclusion The results indicated that the IN challenge with M. caprae induced pathological features of natural TB in the lungs, respiratory LN, and extrapulmonary organs but extremely exaggerating the nasopharyngeal TB pathological features. On the other hand, the EB route oversized and accelerated the pulmonary TB lesion progression. Our results highlight the need to refine the inoculation routes in the interest of faithfully reproducing the natural TB infection when evaluating new vaccines or treatments against the disease.
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Affiliation(s)
- Cristian Melgarejo
- Unitat Mixta d'Investigació IRTA-UAB en Sanitat Animal, Centre de Recerca en Sanitat Animal, Campus de la Universitat Autònoma de Barcelona, Bellaterra, Spain
- IRTA, Programa de Sanitat Animal, Centre de Recerca en Sanitat Animal, Campus de la Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Alex Cobos
- Unitat Mixta d'Investigació IRTA-UAB en Sanitat Animal, Centre de Recerca en Sanitat Animal, Campus de la Universitat Autònoma de Barcelona, Bellaterra, Spain
- IRTA, Programa de Sanitat Animal, Centre de Recerca en Sanitat Animal, Campus de la Universitat Autònoma de Barcelona, Bellaterra, Spain
- Departament de Sanitat i Anatomia Animals, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Carles Planas
- Fundació Hospital Clínic Veterinari, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Jaume Fondevila
- IRTA, Programa de Sanitat Animal, Centre de Recerca en Sanitat Animal, Campus de la Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Maite Martín
- IRTA, Programa de Sanitat Animal, Centre de Recerca en Sanitat Animal, Campus de la Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Zoraida Cervera
- IRTA, Programa de Sanitat Animal, Centre de Recerca en Sanitat Animal, Campus de la Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Guillermo Cantero
- Unitat Mixta d'Investigació IRTA-UAB en Sanitat Animal, Centre de Recerca en Sanitat Animal, Campus de la Universitat Autònoma de Barcelona, Bellaterra, Spain
- IRTA, Programa de Sanitat Animal, Centre de Recerca en Sanitat Animal, Campus de la Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Xavier Moll
- Fundació Hospital Clínic Veterinari, Universitat Autònoma de Barcelona, Bellaterra, Spain
- Departament de Medicina y Cirugía Animals, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Yvonne Espada
- Fundació Hospital Clínic Veterinari, Universitat Autònoma de Barcelona, Bellaterra, Spain
- Departament de Medicina y Cirugía Animals, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Mariano Domingo
- Unitat Mixta d'Investigació IRTA-UAB en Sanitat Animal, Centre de Recerca en Sanitat Animal, Campus de la Universitat Autònoma de Barcelona, Bellaterra, Spain
- IRTA, Programa de Sanitat Animal, Centre de Recerca en Sanitat Animal, Campus de la Universitat Autònoma de Barcelona, Bellaterra, Spain
- Departament de Sanitat i Anatomia Animals, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Enric Vidal
- Unitat Mixta d'Investigació IRTA-UAB en Sanitat Animal, Centre de Recerca en Sanitat Animal, Campus de la Universitat Autònoma de Barcelona, Bellaterra, Spain
- IRTA, Programa de Sanitat Animal, Centre de Recerca en Sanitat Animal, Campus de la Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Bernat Pérez de Val
- Unitat Mixta d'Investigació IRTA-UAB en Sanitat Animal, Centre de Recerca en Sanitat Animal, Campus de la Universitat Autònoma de Barcelona, Bellaterra, Spain
- IRTA, Programa de Sanitat Animal, Centre de Recerca en Sanitat Animal, Campus de la Universitat Autònoma de Barcelona, Bellaterra, Spain
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Melgarejo C, Planas C, Cobos A, Arrieta-Villegas C, Sevilla IA, Bezos J, Moll X, Espada Y, Garrido JM, Domingo M, Vidal E, Pérez de Val B. A proof-of-concept study to investigate the efficacy of heat-inactivated autovaccines in Mycobacterium caprae experimentally challenged goats. Sci Rep 2022; 12:22132. [PMID: 36550177 PMCID: PMC9780325 DOI: 10.1038/s41598-022-26683-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 12/19/2022] [Indexed: 12/24/2022] Open
Abstract
This study aimed to assess the efficacy of a heat-inactivated Mycobacterium caprae (HIMC) vaccine in goats experimentally challenged with the same strain of M. caprae. Twenty-one goats were divided into three groups of seven: vaccinated with heat-inactivated Mycobacterium bovis (HIMB), with HIMC and unvaccinated. At 7 weeks post-vaccination all animals were endobronchially challenged with M. caprae. Blood samples were collected for immunological assays and clinical signs were recorded throughout the experiment. All goats were euthanized at 9 weeks post-challenge. Gross pathological examination, analysis of lung pathology using computed tomography, and bacterial load quantification in pulmonary lymph nodes (LN) by qPCR were carried out. Only HIMC vaccinated goats showed a significant reduction of lung lesions volume and mycobacterial DNA load in LN compared to unvaccinated controls. Both vaccinated groups showed also a significant reduction of the other pathological parameters, an improved clinical outcome and a higher proportion of IFN-γ-producing central memory T cells after vaccination. The results indicated that homologous vaccination of goats with HIMC induced enhanced protection against M. caprae challenge by reducing lung pathology and bacterial load compared to the heterologous vaccine (HIMB). Further large-scale trials are necessary to assess the efficacy of autovaccines under field conditions.
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Affiliation(s)
- Cristian Melgarejo
- grid.424716.2Unitat Mixta d’investigació IRTA-UAB en Sanitat Animal, Centre de Recerca en Sanitat Animal (CReSA), Campus de la Universitat Autònoma de Barcelona (UAB), Bellaterra, Catalonia Spain ,grid.424716.2IRTA. Programa de Sanitat Animal, Centre de Recerca en Sanitat Animal (CReSA), Campus de la UAB, Bellaterra, Catalonia Spain
| | - Carles Planas
- grid.7080.f0000 0001 2296 0625Departament de Medicina i Cirurgía Animals, Universitat Autònoma de Barcelona, Bellaterra, Catalonia Spain
| | - Alex Cobos
- grid.424716.2Unitat Mixta d’investigació IRTA-UAB en Sanitat Animal, Centre de Recerca en Sanitat Animal (CReSA), Campus de la Universitat Autònoma de Barcelona (UAB), Bellaterra, Catalonia Spain ,grid.424716.2IRTA. Programa de Sanitat Animal, Centre de Recerca en Sanitat Animal (CReSA), Campus de la UAB, Bellaterra, Catalonia Spain ,grid.7080.f0000 0001 2296 0625Departament de Sanitat i Anatomia Animals, Universitat Autònoma de Barcelona, Bellaterra, Catalonia Spain
| | - Claudia Arrieta-Villegas
- grid.424716.2Unitat Mixta d’investigació IRTA-UAB en Sanitat Animal, Centre de Recerca en Sanitat Animal (CReSA), Campus de la Universitat Autònoma de Barcelona (UAB), Bellaterra, Catalonia Spain ,grid.424716.2IRTA. Programa de Sanitat Animal, Centre de Recerca en Sanitat Animal (CReSA), Campus de la UAB, Bellaterra, Catalonia Spain
| | - Iker A. Sevilla
- grid.509696.50000 0000 9853 6743Animal Health Department, NEIKER-Instituto Vasco de Investigación y Desarrollo Agrario, Basque Research and Technology Alliance (BRTA). Derio, Bizkaia, Basque Country Spain
| | - Javier Bezos
- grid.4795.f0000 0001 2157 7667Departamento de Sanidad Animal, Facultad de Veterinaria, Universidad Complutense de Madrid, Madrid, Spain ,grid.4795.f0000 0001 2157 7667VISAVET Health Surveillance Centre, Universidad Complutense de Madrid, Madrid, Spain
| | - Xavier Moll
- grid.7080.f0000 0001 2296 0625Departament de Medicina i Cirurgía Animals, Universitat Autònoma de Barcelona, Bellaterra, Catalonia Spain ,grid.7080.f0000 0001 2296 0625Fundació Hospital Clínic Veterinari, Universitat Autònoma de Barcelona, Bellaterra, Catalonia Spain
| | - Yvonne Espada
- grid.7080.f0000 0001 2296 0625Departament de Medicina i Cirurgía Animals, Universitat Autònoma de Barcelona, Bellaterra, Catalonia Spain ,grid.7080.f0000 0001 2296 0625Fundació Hospital Clínic Veterinari, Universitat Autònoma de Barcelona, Bellaterra, Catalonia Spain
| | - Joseba M. Garrido
- grid.509696.50000 0000 9853 6743Animal Health Department, NEIKER-Instituto Vasco de Investigación y Desarrollo Agrario, Basque Research and Technology Alliance (BRTA). Derio, Bizkaia, Basque Country Spain
| | - Mariano Domingo
- grid.424716.2Unitat Mixta d’investigació IRTA-UAB en Sanitat Animal, Centre de Recerca en Sanitat Animal (CReSA), Campus de la Universitat Autònoma de Barcelona (UAB), Bellaterra, Catalonia Spain ,grid.424716.2IRTA. Programa de Sanitat Animal, Centre de Recerca en Sanitat Animal (CReSA), Campus de la UAB, Bellaterra, Catalonia Spain ,grid.7080.f0000 0001 2296 0625Departament de Sanitat i Anatomia Animals, Universitat Autònoma de Barcelona, Bellaterra, Catalonia Spain
| | - Enric Vidal
- grid.424716.2Unitat Mixta d’investigació IRTA-UAB en Sanitat Animal, Centre de Recerca en Sanitat Animal (CReSA), Campus de la Universitat Autònoma de Barcelona (UAB), Bellaterra, Catalonia Spain ,grid.424716.2IRTA. Programa de Sanitat Animal, Centre de Recerca en Sanitat Animal (CReSA), Campus de la UAB, Bellaterra, Catalonia Spain
| | - Bernat Pérez de Val
- grid.424716.2Unitat Mixta d’investigació IRTA-UAB en Sanitat Animal, Centre de Recerca en Sanitat Animal (CReSA), Campus de la Universitat Autònoma de Barcelona (UAB), Bellaterra, Catalonia Spain ,grid.424716.2IRTA. Programa de Sanitat Animal, Centre de Recerca en Sanitat Animal (CReSA), Campus de la UAB, Bellaterra, Catalonia Spain
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Ortega J, de Juan L, Sevilla IA, Garrido JM, Roy Á, Velasco C, Romero B, Domínguez M, Pérez de Val B, Nebot C, Sáez-Llorente JL, Álvarez J, Bezos J. Effect of a recent parenteral dexamethasone and ketoprofen administration on the immunological diagnosis of tuberculosis in goats. Front Vet Sci 2022; 9:1042428. [DOI: 10.3389/fvets.2022.1042428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Accepted: 10/28/2022] [Indexed: 11/11/2022] Open
Abstract
Caprine tuberculosis (TB) is a zoonosis caused by members of the Mycobacterium tuberculosis complex (MTBC). Caprine TB eradication programmes are based mainly on intradermal tuberculin tests and slaughterhouse surveillance. Different factors may affect the performance of the TB diagnostic tests used in caprine herds and, therefore, their ability to detect infected animals. The present study evaluates the effect of the fraudulent administration of two anti-inflammatory substances, dexamethasone and ketoprofen, on the performance of the TB diagnostic techniques used in goats, as well as the suitability of high performance liquid chromatography (HPLC) for their detection in hair samples. The animals (n = 90) were distributed in three groups: (1) a group treated with dexamethasone (n = 30); a second group treated with ketoprofen (n = 30); and a third non-treated control group (n = 30). Both dexamethasone and ketoprofen groups were subjected to intramuscular inoculation with the substances 48 h after the administration of bovine and avian purified protein derivatives (PPDs), that is, 24 h before the tests were interpreted. All the animals were subjected to the single and comparative intradermal tuberculin (SIT and CIT, respectively) tests, interferon-gamma release assay (IGRA) and P22 ELISA. The number of SIT test reactors was significantly lower in the dexamethasone (p = 0.001) and ketoprofen (p < 0.001) groups 72 h after the bovine PPD inoculation compared with the control group. A significantly higher number of positive reactors to IGRA was detected within the dexamethasone group (p = 0.016) 72 h after PPD administration compared to the control group. Dexamethasone and ketoprofen detection in either hair or serum samples was challenging when using HPLC since these substances were not detected in animals whose skin fold thickness (SFT) was reduced, what could be an issue if they are used for fraudulent purposes. In conclusion, the parenteral administration of dexamethasone or ketoprofen 48 h after the PPDs administration can significantly reduce the increase in SFT (mm) and subsequently the number of positive reactors to SIT test.
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8
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Kanipe C, Boggiatto PM, Putz EJ, Palmer MV. Histopathologic differences in granulomas of Mycobacterium bovis bacille Calmette Guérin (BCG) vaccinated and non-vaccinated cattle with bovine tuberculosis. Front Microbiol 2022; 13:1048648. [PMID: 36425039 PMCID: PMC9678917 DOI: 10.3389/fmicb.2022.1048648] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Accepted: 10/24/2022] [Indexed: 10/24/2023] Open
Abstract
Mycobacterium bovis (M. bovis) is the zoonotic bacterium responsible for bovine tuberculosis. An attenuated form of M. bovis, Bacillus Calmette-Guerin (BCG), is a modified live vaccine known to provide variable protection in cattle and other species. Protection for this vaccine is defined as a reduction in disease severity rather than prevention of infection and is determined by evaluation of the characteristic lesion of tuberculosis: the granuloma. Despite its recognized ability to decrease disease severity, the mechanism by which BCG imparts protection remains poorly understood. Understanding the histopathologic differences between granulomas which form in BCG vaccinates compared to non-vaccinates may help identify how BCG imparts protection and lead to an improved vaccine. Utilizing special stains and image analysis software, we examined 88 lymph nodes obtained from BGC-vaccinated and non-vaccinated animals experimentally infected with M. bovis. We evaluated the number of granulomas, their size, severity (grade), density of multinucleated giant cells (MNGC), and the amounts of necrosis, mineralization, and fibrosis. BCG vaccinates had fewer granulomas overall and smaller high-grade granulomas with less necrosis than non-vaccinates. The relative numbers of high- and low- grade lesions were similar as were the amounts of mineralization and the density of MNGC. The amount of fibrosis was higher in low-grade granulomas from vaccinates compared to non-vaccinates. Collectively, these findings suggest that BCG vaccination reduces bacterial establishment, resulting in the formation of fewer granulomas. In granulomas that form, BCG has a protective effect by containing their size, reducing the relative amount of necrosis, and increasing fibrosis in low-grade lesions. Vaccination did not affect the amount of mineralization or density of MNGC.
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Affiliation(s)
- C. Kanipe
- Infectious Bacterial Diseases Research Unit, National Animal Disease Center, Agricultural Research Service (USDA), Ames, IA, United States
- Immunobiology Graduate Program, Iowa State University, Ames, IA, United States
| | - P. M. Boggiatto
- Infectious Bacterial Diseases Research Unit, National Animal Disease Center, Agricultural Research Service (USDA), Ames, IA, United States
| | - E. J. Putz
- Infectious Bacterial Diseases Research Unit, National Animal Disease Center, Agricultural Research Service (USDA), Ames, IA, United States
| | - M. V. Palmer
- Infectious Bacterial Diseases Research Unit, National Animal Disease Center, Agricultural Research Service (USDA), Ames, IA, United States
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9
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Neila C, Rebollada-Merino A, Bezos J, de Juan L, Domínguez L, Rodríguez-Bertos A. Extracellular matrix proteins (fibronectin, collagen III, and collagen I) immunoexpression in goat tuberculous granulomas (Mycobacterium caprae). Vet Res Commun 2022; 46:1147-1156. [PMID: 36136210 DOI: 10.1007/s11259-022-09996-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Accepted: 09/05/2022] [Indexed: 10/14/2022]
Abstract
The lesion resulting from the interaction between Mycobacterium and the host immune response is the tuberculous granuloma. Tuberculous granulomas, except in incipient stages, are partially or totally encapsulated by connective tissue. The aim of this study was to assess the immunoexpression of the extracellular matrix proteins fibronectin, collagen III, and collagen I in granulomas caused by Mycobacterium caprae in goats (Capra aegagrus hircus) to understand capsule development at different granuloma stages. For this purpose, a retrospective study of 56 samples of tuberculous granulomas in lung (n = 30) and mediastinal lymph node (n = 26) from 17 goats naturally infected with M. caprae in stages I (n = 15), II (n = 14) and III (n = 27) was carried out. Fibronectin immunoreaction was extracellular, fibrillar-reticular in the center of stage I, II and III granulomas and peripheral in stages II and III granulomas. Collagen III immunoexpression was extracellular and fibrillar in the center of stages I, II and III tuberculous granulomas in lung and mediastinal lymph node, and progressive expression was observed in the periphery of stages II and III granulomas. Finally, collagen I immunoexpression was extracellular and fibrillar, showing a progressive loss of central expression and an increase in peripheral expression in stage III granulomas compared to stage I granulomas. Immunoexpression of these extracellular matrix proteins could help understand fibrogenesis and dating in tuberculous granuloma in both animal models and humans.
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Affiliation(s)
- Carlos Neila
- VISAVET Health Surveillance Centre, Complutense University of Madrid, 28040, Madrid, Spain
- Department of Internal Medicine and Animal Surgery, Faculty of Veterinary Medicine, Complutense University of Madrid, 28040, Madrid, Spain
| | - Agustín Rebollada-Merino
- VISAVET Health Surveillance Centre, Complutense University of Madrid, 28040, Madrid, Spain
- Department of Internal Medicine and Animal Surgery, Faculty of Veterinary Medicine, Complutense University of Madrid, 28040, Madrid, Spain
| | - Javier Bezos
- VISAVET Health Surveillance Centre, Complutense University of Madrid, 28040, Madrid, Spain
- Department of Animal Health, Faculty of Veterinary Medicine, Complutense University of Madrid, 28040, Madrid, Spain
| | - Lucía de Juan
- VISAVET Health Surveillance Centre, Complutense University of Madrid, 28040, Madrid, Spain
- Department of Animal Health, Faculty of Veterinary Medicine, Complutense University of Madrid, 28040, Madrid, Spain
| | - Lucas Domínguez
- VISAVET Health Surveillance Centre, Complutense University of Madrid, 28040, Madrid, Spain
- Department of Animal Health, Faculty of Veterinary Medicine, Complutense University of Madrid, 28040, Madrid, Spain
| | - Antonio Rodríguez-Bertos
- VISAVET Health Surveillance Centre, Complutense University of Madrid, 28040, Madrid, Spain.
- Department of Internal Medicine and Animal Surgery, Faculty of Veterinary Medicine, Complutense University of Madrid, 28040, Madrid, Spain.
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10
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Agulló-Ros I, Andrada M, Pérez-Sancho M, Roy Á, Bezos J, Bonnet T, Moreno I, Paz-Sánchez Y, Domínguez M, Gómez-Villamandos JC, Domínguez L, Risalde MA. Effect of heat-inactivated Mycobacterium avium subspecies paratuberculosis (MAP) vaccine on the lesions and immunopathology developed in target tissues of naturally MAP-infected goats. Vet Microbiol 2022; 273:109543. [PMID: 36037619 DOI: 10.1016/j.vetmic.2022.109543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 08/05/2022] [Accepted: 08/08/2022] [Indexed: 11/19/2022]
Abstract
Paratuberculosis (PTB) is a disease caused by Mycobacterium avium subspecies paratuberculosis (MAP), which affects a broad range of hosts, including domestic and wild animals. PTB is a chronic granulomatous enteritis and lymphadenitis that compromises animal welfare and causes economic losses. The objective of this study was to evaluate the effect of a commercial heat-inactivated MAP vaccine on lesions and immunopathology developed in the target tissues of goats naturally infected with MAP. Lesions compatible with PTB in the intestine and regional lymph nodes (LNs), as well as local immune response to MAP, were evaluated and compared in Gudair®-vaccinated (n = 14) and unvaccinated (n = 11) goats from a MAP-infected farm. The percentage of animals with multifocal granulomatous lesions in the jejunal (p = 0.05) and ileocecal (p = 0.02) LNs was higher in unvaccinated animals, while a lesion score reduction of 50% was found in the LNs of vaccinated animals. Unvaccinated animals showed increased numbers and wider distribution of macrophages (MΦs, CD68 +) in histiocytic infiltrate (p = 0.0003), associated with increased numbers of mycobacteria. Increased inducible nitric oxide synthase (iNOS) expression was also reported in these animals, while M2 MΦs (CD163 +) were scarce in both groups. Vaccinated animals showed an increase in CD3 + lymphocytes, although differences in interferon gamma (IFNγ) were negligible. These results support the hypothesis that heat-inactivated MAP vaccination could reduce the severity of PTB lesions and mycobacterial load in target tissues in vaccinated adult goats.
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Affiliation(s)
- Irene Agulló-Ros
- Departamento de Anatomía y Anatomía Patológica Comparadas y Toxicología, Grupo de Investigación GISAZ, UIC Zoonosis y Enfermedades Emergentes ENZOEM, Universidad de Córdoba, Campus de Rabanales, Edificio Sanidad animal, 14014 Córdoba, Spain
| | - Marisa Andrada
- Veterinary Histology and Pathology, Institute of Animal Health and Food Safety (IUSA), Veterinary School, University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain.
| | - Marta Pérez-Sancho
- VISAVET Health Surveillance Centre, Complutense University of Madrid, Madrid, Spain; Dpto. de Sanidad Animal, Facultad de Veterinaria, Universidad Complutense de Madrid, Madrid, Spain
| | - Álvaro Roy
- VISAVET Health Surveillance Centre, Complutense University of Madrid, Madrid, Spain
| | - Javier Bezos
- VISAVET Health Surveillance Centre, Complutense University of Madrid, Madrid, Spain; Dpto. de Sanidad Animal, Facultad de Veterinaria, Universidad Complutense de Madrid, Madrid, Spain
| | - Thomas Bonnet
- Departamento de Anatomía y Anatomía Patológica Comparadas y Toxicología, Grupo de Investigación GISAZ, UIC Zoonosis y Enfermedades Emergentes ENZOEM, Universidad de Córdoba, Campus de Rabanales, Edificio Sanidad animal, 14014 Córdoba, Spain
| | - Inmaculada Moreno
- Servicio de Inmunología Microbiana, Centro Nacional de Microbiología, Instituto de Investigación Carlos III, Majadahonda, Madrid, Spain
| | - Yania Paz-Sánchez
- Veterinary Histology and Pathology, Institute of Animal Health and Food Safety (IUSA), Veterinary School, University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain
| | - Mercedes Domínguez
- Servicio de Inmunología Microbiana, Centro Nacional de Microbiología, Instituto de Investigación Carlos III, Majadahonda, Madrid, Spain
| | - José C Gómez-Villamandos
- Departamento de Anatomía y Anatomía Patológica Comparadas y Toxicología, Grupo de Investigación GISAZ, UIC Zoonosis y Enfermedades Emergentes ENZOEM, Universidad de Córdoba, Campus de Rabanales, Edificio Sanidad animal, 14014 Córdoba, Spain; CIBERINFEC, ISCIII - CIBER de Enfermedades Infecciosas, Instituto de Salud Carlos III, Spain
| | - Lucas Domínguez
- VISAVET Health Surveillance Centre, Complutense University of Madrid, Madrid, Spain; Dpto. de Sanidad Animal, Facultad de Veterinaria, Universidad Complutense de Madrid, Madrid, Spain
| | - María A Risalde
- Departamento de Anatomía y Anatomía Patológica Comparadas y Toxicología, Grupo de Investigación GISAZ, UIC Zoonosis y Enfermedades Emergentes ENZOEM, Universidad de Córdoba, Campus de Rabanales, Edificio Sanidad animal, 14014 Córdoba, Spain; CIBERINFEC, ISCIII - CIBER de Enfermedades Infecciosas, Instituto de Salud Carlos III, Spain
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11
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Wedlich N, Figl J, Liebler-Tenorio EM, Köhler H, von Pückler K, Rissmann M, Petow S, Barth SA, Reinhold P, Ulrich R, Grode L, Kaufmann SHE, Menge C. Video Endoscopy-Guided Intrabronchial Spray Inoculation of Mycobacterium bovis in Goats and Comparative Assessment of Lung Lesions With Various Imaging Methods. Front Vet Sci 2022; 9:877322. [PMID: 35591868 PMCID: PMC9113525 DOI: 10.3389/fvets.2022.877322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Accepted: 04/01/2022] [Indexed: 11/13/2022] Open
Abstract
Bovine tuberculosis (bTB) not only poses a zoonotic threat to humans but also has a significant economic impact on livestock production in many areas of the world. Effective vaccines for humans, livestock, and wildlife are highly desirable to control tuberculosis. Suitable large animal models are indispensable for meaningful assessment of vaccine candidates. Here, we describe the refinement of an animal model for bTB in goats. Intrabronchial inoculation procedure via video-guided endoscopy in anesthetized animals, collection of lungs after intratracheal fixation in situ, and imaging of lungs by computed tomography (CT) were established in three goats using barium sulfate as surrogate inoculum. For subsequent infection experiments, four goats were infected with 4.7 × 102 colony-forming units of M. bovis by intrabronchial inoculation using video-guided endoscopy with spray catheters. Defined amounts of inoculum were deposited at five sites per lung. Four age-matched goats were mock-inoculated. None of the goats developed clinical signs until they were euthanized 5 months post infection, but simultaneous skin testing confirmed bTB infection in all goats inoculated with M. bovis. In tissues collected at necropsy, M. bovis was consistently re-isolated from granulomas in lymph nodes, draining the lungs of all the goats infected with M. bovis. Further dissemination was observed in one goat only. Pulmonary lesions were quantified by CT and digital 2D radiography (DR). CT revealed mineralized lesions in all the infected goats ranging from <5 mm to >10 mm in diameter. Small lesions <5 mm predominated. The DR failed to detect small lesions and to determine the exact location of lesions because of overlapping of pulmonary lobes. Relative volume of pulmonary lesions was low in three but high in one goat that also had extensive cavitation. CT lesions could be correlated to gross pathologic findings and histologic granuloma types in representative pulmonary lobes. In conclusion, video-guided intrabronchial inoculation with spray catheters, mimicking the natural way of infection, resulted in pulmonary infection of goats with M. bovis. CT, but not DR, presented as a highly sensitive method to quantify the extent of pulmonary lesions. This goat model of TB may serve as a model for testing TB vaccine efficacy.
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Affiliation(s)
- Nadine Wedlich
- Institute of Molecular Pathogenesis, Friedrich-Loeffler-Institute (FLI), Jena, Germany
| | - Julia Figl
- Institute of Molecular Pathogenesis, Friedrich-Loeffler-Institute (FLI), Jena, Germany
| | - Elisabeth M. Liebler-Tenorio
- Institute of Molecular Pathogenesis, Friedrich-Loeffler-Institute (FLI), Jena, Germany
- *Correspondence: Elisabeth M. Liebler-Tenorio
| | - Heike Köhler
- Institute of Molecular Pathogenesis, Friedrich-Loeffler-Institute (FLI), Jena, Germany
| | - Kerstin von Pückler
- Clinic for Small Animals – Radiology, Justus-Liebig-University Giessen, Giessen, Germany
| | - Melanie Rissmann
- Department of Experimental Animal Facilities and Biorisk Management, Friedrich-Loeffler-Institute, Greifswald-Insel Riems, Germany
| | - Stefanie Petow
- Institute for Animal Welfare and Animal Husbandry, Friedrich-Loeffler-Institute, Celle, Germany
| | - Stefanie A. Barth
- Institute of Molecular Pathogenesis, Friedrich-Loeffler-Institute (FLI), Jena, Germany
| | - Petra Reinhold
- Institute of Molecular Pathogenesis, Friedrich-Loeffler-Institute (FLI), Jena, Germany
| | - Reiner Ulrich
- Department of Experimental Animal Facilities and Biorisk Management, Friedrich-Loeffler-Institute, Greifswald-Insel Riems, Germany
| | | | - Stefan H. E. Kaufmann
- Director Emeritus, Max Planck Institute for Infection Biology, Berlin, Germany
- Emeritus Group for Systems Immunology, Max Planck Institute for Multidisciplinary Sciences, Göttingen, Germany
- Hagler Institute for Advanced Study, Texas A&M University, College Station, TX, United States
| | - Christian Menge
- Institute of Molecular Pathogenesis, Friedrich-Loeffler-Institute (FLI), Jena, Germany
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12
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A subunit vaccine candidate based on the Spike protein of SARS-CoV-2 prevents infectious virus shedding in cats. Res Vet Sci 2022; 148:52-64. [PMID: 35667227 PMCID: PMC9148427 DOI: 10.1016/j.rvsc.2022.05.003] [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] [Received: 12/22/2021] [Revised: 04/28/2022] [Accepted: 05/25/2022] [Indexed: 12/02/2022]
Abstract
Of the numerous animal species affected by the SARS-CoV-2 virus, cats are one of the most susceptible, and cat-to-cat transmission has been described. Although cat-to-human infection has not, as yet, been demonstrated, preventive measures should be taken in order to avoid both viral infection in cats and transmission among them. In this respect, the application of an effective vaccine to at-risk populations would be a useful tool for controlling the disease in this species. Here, we test a new vaccine prototype based on the Spike protein of the virus in order to prevent infection and infectious virus shedding in cats. The vaccine employed in experimentation, and which is easily produced, triggered a strong neutralizing antibody response in vaccinated animals. In contrast to that which occurred with control animals, no infectious virus was detected in the oropharyngeal or rectal swabs of vaccinated cats submitted to a SARS-CoV-2 challenge. These results are of great interest as regards future considerations related to implementing vaccination programs in pets. The value of cats as vaccination trial models is also described herein.
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13
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Ortega J, Infantes-Lorenzo J, Roy A, de Juan L, Romero B, Moreno I, Domínguez M, Domínguez L, Bezos J. Factors affecting the performance of P22 ELISA for the diagnosis of caprine tuberculosis in milk samples. Res Vet Sci 2022; 145:40-45. [DOI: 10.1016/j.rvsc.2022.02.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 02/01/2022] [Accepted: 02/02/2022] [Indexed: 10/19/2022]
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14
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Ortega J, Roy Á, Álvarez J, Sánchez-Cesteros J, Romero B, Infantes-Lorenzo JA, Sáez JL, López M, Domínguez L, de Juan L, Bezos J. Effect of the Inoculation Site of Bovine and Avian Purified Protein Derivatives (PPDs) on the Performance of the Intradermal Tuberculin Test in Goats From Tuberculosis-Free and Infected Herds. Front Vet Sci 2021; 8:722825. [PMID: 34513976 PMCID: PMC8429842 DOI: 10.3389/fvets.2021.722825] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Accepted: 07/27/2021] [Indexed: 11/18/2022] Open
Abstract
The single and comparative intradermal tuberculin (SIT and CIT) tests are used for the ante-mortem diagnosis of caprine tuberculosis (TB). The tuberculin injection site has been associated with a different performance of the test in cattle. In contrast to that required in cattle in Europe (cervical injection), it can be carried out in the scapular region in goats. Nevertheless, there are no previous data concerning the effect of the injection site on the performance of the test in goats. The aim of the present study was to evaluate the effect of two different inoculation sites (cervical and scapular) on the performance of the SIT/CIT tests. This was done by intradermally inoculating 309 goats from two infected herds and one TB-free herd with both avian and bovine PPDs in the mid-cervical and scapular regions. None of the animals from the TB-free herd had positive reactions, and the number of reactors was not significantly higher, regardless of the inoculation site, in the high and low prevalence herds. However, significantly higher increases in skin fold thickness were observed on the cervical site when compared to the scapular site after the avian and bovine PPD inoculations in the TB-free herd (p < 0.001) and after the bovine PPD injection in the high prevalence herd (p = 0.003). The presence of clinical signs was also more evident on the cervical site when using avian and bovine PPDs in the high prevalence herd (p < 0.01). In contrast, increases in higher skin fold thickness were observed on the scapular site when compared to the cervical site after the bovine and avian PPD inoculations were employed in the low prevalence herd (p < 0.01). These results suggest that the cervical injection of PPDs may improve the sensitivity of the intradermal tuberculin test in high TB prevalence caprine herds, mainly owing to the increased presence of local clinical signs and a better performance of the CIT test. Moreover, specificity was not affected when using standard interpretations, although further analyses in a great number of herds are required in order to confirm these findings.
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Affiliation(s)
- Javier Ortega
- VISAVET Health Surveillance Centre, Complutense University of Madrid, Madrid, Spain.,Departamento de Sanidad Animal, Facultad de Veterinaria, Universidad Complutense de Madrid, Madrid, Spain
| | - Álvaro Roy
- VISAVET Health Surveillance Centre, Complutense University of Madrid, Madrid, Spain
| | - Julio Álvarez
- VISAVET Health Surveillance Centre, Complutense University of Madrid, Madrid, Spain.,Departamento de Sanidad Animal, Facultad de Veterinaria, Universidad Complutense de Madrid, Madrid, Spain
| | | | - Beatriz Romero
- VISAVET Health Surveillance Centre, Complutense University of Madrid, Madrid, Spain
| | - Jose A Infantes-Lorenzo
- Servicio de Inmunología Microbiana, Centro Nacional de Microbiología, Instituto de Investigación Carlos III, Majadahonda, Spain
| | - José L Sáez
- Ministerio de Agricultura, Pesca y Alimentación, Madrid, Spain
| | - Marisol López
- Servicio Territorial de Agricultura, Ganadería y Desarrollo Rural de Ávila- Sección de Sanidad y Producción Animal, Ávila, Spain
| | - Lucas Domínguez
- VISAVET Health Surveillance Centre, Complutense University of Madrid, Madrid, Spain.,Departamento de Sanidad Animal, Facultad de Veterinaria, Universidad Complutense de Madrid, Madrid, Spain
| | - Lucia de Juan
- VISAVET Health Surveillance Centre, Complutense University of Madrid, Madrid, Spain.,Departamento de Sanidad Animal, Facultad de Veterinaria, Universidad Complutense de Madrid, Madrid, Spain
| | - Javier Bezos
- VISAVET Health Surveillance Centre, Complutense University of Madrid, Madrid, Spain.,Departamento de Sanidad Animal, Facultad de Veterinaria, Universidad Complutense de Madrid, Madrid, Spain
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15
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Cho T, Khatchadourian C, Nguyen H, Dara Y, Jung S, Venketaraman V. A review of the BCG vaccine and other approaches toward tuberculosis eradication. Hum Vaccin Immunother 2021; 17:2454-2470. [PMID: 33769193 PMCID: PMC8475575 DOI: 10.1080/21645515.2021.1885280] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Accepted: 01/29/2021] [Indexed: 02/02/2023] Open
Abstract
Despite aggressive eradication efforts, Tuberculosis (TB) remains a global health burden, one that disproportionally affects poorer, less developed nations. The only vaccine approved for TB, the Bacillus of Calmette and Guérin (BCG) vaccine remains controversial because it's stated efficacy has been cited as anywhere from 0 to 80%. Nevertheless, there have been exciting discoveries about the mechanism of action of the BCG vaccine that suggests it has a role in immunization schedules today. We review recent data suggesting the vaccine imparts protection against both tuberculosis and non-tuberculosis pathogens via a newly discovered immune system called trained immunity. BCG's efficacy also appears to be tied to its affect on granulocytes at the epigenetic and hematopoietic stem cell levels, which we discuss in this article at length. We also write about how the different strains of the BCG vaccine elicit different immune responses, suggesting that certain BCG strains are more immunogenic than others. Finally, our review delves into how the current vaccine is being reformulated to be more efficacious, and track the development of the next generation vaccines against TB.
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Affiliation(s)
- Thomas Cho
- College of Osteopathic Medicine of the Pacific, Western University of Health Sciences, Pomona, CA, USA
| | | | - Huy Nguyen
- College of Osteopathic Medicine of the Pacific, Western University of Health Sciences, Pomona, CA, USA
| | - Yash Dara
- College of Osteopathic Medicine of the Pacific, Western University of Health Sciences, Pomona, CA, USA
| | - Shuna Jung
- College of Osteopathic Medicine of the Pacific, Western University of Health Sciences, Pomona, CA, USA
| | - Vishwanath Venketaraman
- College of Osteopathic Medicine of the Pacific, Western University of Health Sciences, Pomona, CA, USA
- Graduate College of Biomedical Sciences, Western University of Health Sciences, Pomona, CA, USA
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16
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Gormley E, Ní Bhuachalla D, Fitzsimons T, O'Keeffe J, McGrath G, Madden JM, Fogarty N, Kenny K, Messam LLM, Murphy D, Corner LAL. Protective immunity against tuberculosis in a free-living badger population vaccinated orally with Mycobacterium bovis Bacille Calmette-Guérin. Transbound Emerg Dis 2021; 69:e10-e19. [PMID: 34331741 DOI: 10.1111/tbed.14254] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 07/15/2021] [Accepted: 07/21/2021] [Indexed: 12/19/2022]
Abstract
Vaccination of badgers with Mycobacterium bovis Bacille Calmette-Guérin (BCG) has been shown to protect badgers against tuberculosis in experimental trials. During the 3-year County Kilkenny BCG vaccine field study, badgers were treated orally with placebo (100% in Zone A), BCG (100% in Zone C) or randomly assigned 50%: 50% treatment with BCG or placebo (Zone B). At the end of the study, 275 badgers were removed from the trial area and subjected to detailed post-mortem examination followed by histology and culture for M. bovis. Among these badgers, 83 (30.2%) were captured for the first time across the three zones, representing a non-treated proportion of the population. Analysis of the data based on the infection status of treated animals showed a prevalence of 52% (95% CI: 40%-63%) infection in Zone A (placebo), 39% (95% CI: 17%-64%) in Zone B (placebo) and 44% (95% CI: 20%-70%) in Zone B (BCG vaccinated) and 24% (95% CI: 14%-36%) in Zone C (BCG vaccinated). There were no statistically significant differences in the proportion of animals with infection involving the lung and thoracic lymph nodes, extra-thoracic infection or in the distribution and severity scores of histological lesions. Among the 83 non-treated badgers removed at the end of the study, the infection prevalence of animals in Zone A (prevalence = 46%, 95% CI: 32%-61%) and Zone B (prevalence = 44%, 95% CI: 23%-67%) was similar to the treated animals in these zones. However, in Zone C, no evidence of infection was found in any of the untreated badgers (prevalence = 0%, 95% CI: 0%-14%). This is consistent with an indirect protective effect in the non-vaccinated badgers leading to a high level of population immunity. The results suggest that BCG vaccination of badgers could be a highly effective means of reducing the incidence of tuberculosis in badger populations.
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Affiliation(s)
- Eamonn Gormley
- Tuberculosis Diagnostics and Immunology Research Laboratory, School of Veterinary Medicine, University College Dublin (UCD), Dublin, Ireland
| | - Deirdre Ní Bhuachalla
- Tuberculosis Diagnostics and Immunology Research Laboratory, School of Veterinary Medicine, University College Dublin (UCD), Dublin, Ireland.,Department of Agriculture, Food and the Marine, Dublin 2, Ireland
| | - Tara Fitzsimons
- Tuberculosis Diagnostics and Immunology Research Laboratory, School of Veterinary Medicine, University College Dublin (UCD), Dublin, Ireland
| | - James O'Keeffe
- Department of Agriculture, Food and the Marine, Dublin 2, Ireland
| | - Guy McGrath
- UCD Centre for Veterinary Epidemiology and Risk Analysis (CVERA), School of Veterinary Medicine, University College Dublin (UCD), Dublin, Ireland
| | - Jamie M Madden
- UCD Centre for Veterinary Epidemiology and Risk Analysis (CVERA), School of Veterinary Medicine, University College Dublin (UCD), Dublin, Ireland
| | - Naomi Fogarty
- Central Veterinary Research Laboratory, Backweston Co., Kildare, Ireland
| | - Kevin Kenny
- Central Veterinary Research Laboratory, Backweston Co., Kildare, Ireland
| | - Locksley L McV Messam
- Tuberculosis Diagnostics and Immunology Research Laboratory, School of Veterinary Medicine, University College Dublin (UCD), Dublin, Ireland
| | - Denise Murphy
- Tuberculosis Diagnostics and Immunology Research Laboratory, School of Veterinary Medicine, University College Dublin (UCD), Dublin, Ireland.,Department of Agriculture, Food and the Marine, Dublin 2, Ireland
| | - Leigh A L Corner
- Tuberculosis Diagnostics and Immunology Research Laboratory, School of Veterinary Medicine, University College Dublin (UCD), Dublin, Ireland
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17
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Arrieta-Villegas C, Vidal E, Martín M, Verdés J, Moll X, Espada Y, Singh M, Villarreal-Ramos B, Domingo M, Pérez de Val B. Immunogenicity and Protection against Mycobacterium caprae Challenge in Goats Vaccinated with BCG and Revaccinated after One Year. Vaccines (Basel) 2020; 8:vaccines8040751. [PMID: 33322064 PMCID: PMC7770602 DOI: 10.3390/vaccines8040751] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 12/05/2020] [Accepted: 12/07/2020] [Indexed: 11/16/2022] Open
Abstract
Vaccination has been proposed as a supplementary tool for the control of tuberculosis in livestock. The long-term immunogenicity elicited by bacillus Calmette–Guerin (BCG) and the efficacy of revaccination were investigated in thirty goat kids distributed into three groups: unvaccinated controls, BCG (vaccinated at week 0) and BCG-BCG (vaccinated at weeks 0 and 56). Sixty-four weeks after the first vaccination, all animals were challenged with Mycobacterium caprae and examined post-mortem (pathology and bacterial load) at week 73. Antigen-specific interferon-gamma (IFN-γ) release was measured throughout the experiment. At week 59, peripheral blood mononuclear cells were stained for CD4, CD45RO and IFN-γ to determine the presence of antigen-specific cells secreting IFN-γ. The BCG-BCG group showed reductions in rectal temperatures, M. caprae DNA load in pulmonary lymph nodes (LN), the volume of lesions in pulmonary LN, mineralization in lungs, and higher weight gains compared to unvaccinated controls. IFN-γ responses were undetectable from 32 weeks after primary vaccination until revaccination, when the BCG-BCG group showed detectable IFN-γ production and a greater percentage of antigen-specific CD4+CD45RO+IFNγ+ and CD4−CD45RO+IFNγ+ cells compared to the BCG and control groups, which may be an indicator of the mechanisms of protection. Thus, re-vaccination of goats with BCG appears to prolong protection against infection with M. caprae.
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Affiliation(s)
- Claudia Arrieta-Villegas
- IRTA, Centre de Recerca en Sanitat Animal (CReSA, IRTA-UAB), Campus UAB, 08193 Bellaterra, Spain; (E.V.); (M.M.); (M.D.); (B.P.d.V.)
- Correspondence:
| | - Enric Vidal
- IRTA, Centre de Recerca en Sanitat Animal (CReSA, IRTA-UAB), Campus UAB, 08193 Bellaterra, Spain; (E.V.); (M.M.); (M.D.); (B.P.d.V.)
| | - Maite Martín
- IRTA, Centre de Recerca en Sanitat Animal (CReSA, IRTA-UAB), Campus UAB, 08193 Bellaterra, Spain; (E.V.); (M.M.); (M.D.); (B.P.d.V.)
| | - Judit Verdés
- Departament de Medicina i Cirurgia Animals, Universitat Autònoma de Barcelona (UAB), 08193 Bellaterra, Spain; (J.V.); (X.M.); (Y.E.)
| | - Xavier Moll
- Departament de Medicina i Cirurgia Animals, Universitat Autònoma de Barcelona (UAB), 08193 Bellaterra, Spain; (J.V.); (X.M.); (Y.E.)
| | - Yvonne Espada
- Departament de Medicina i Cirurgia Animals, Universitat Autònoma de Barcelona (UAB), 08193 Bellaterra, Spain; (J.V.); (X.M.); (Y.E.)
| | - Mahavir Singh
- Lionex Diagnostics and Therapeutics GmbH, D-38126 Braunschweig, Germany;
| | - Bernardo Villarreal-Ramos
- Animal and Plant Health Agency (APHA), Addlestone KT15 3NB, UK;
- Department of Biological, Environmental and Rural Sciences, University of Aberystwyth, Aberystwyth SY23 3DA, UK
| | - Mariano Domingo
- IRTA, Centre de Recerca en Sanitat Animal (CReSA, IRTA-UAB), Campus UAB, 08193 Bellaterra, Spain; (E.V.); (M.M.); (M.D.); (B.P.d.V.)
- Departament de Sanitat i Anatomia Animals, Universitat Autònoma de Barcelona (UAB), 08193 Bellaterra, Spain
| | - Bernat Pérez de Val
- IRTA, Centre de Recerca en Sanitat Animal (CReSA, IRTA-UAB), Campus UAB, 08193 Bellaterra, Spain; (E.V.); (M.M.); (M.D.); (B.P.d.V.)
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18
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Arrieta-Villegas C, Allepuz A, Grasa M, Martín M, Cervera Z, Mercader I, López-Soria S, Domingo M, Pérez de Val B. Long-term efficacy of BCG vaccination in goat herds with a high prevalence of tuberculosis. Sci Rep 2020; 10:20369. [PMID: 33230112 PMCID: PMC7683592 DOI: 10.1038/s41598-020-77334-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Accepted: 11/06/2020] [Indexed: 12/13/2022] Open
Abstract
Vaccination of goats against tuberculosis (TB) has been promoted as an ancillary tool for controlling the disease in infected livestock herds. A three-year trial to assess the efficacy of BCG vaccine was carried out in five goat herds. At the beginning of the trial (month 0), all animals were tested for TB using thee different diagnostic tests. Animals negative to all tests were vaccinated with BCG and all replacement goat kids were also systematically vaccinated throughout the trial. All animals were tested by Interferon-gamma release assay (IGRA) using vaccine compatible reagents at months 6, 12, 24, and 36. The risk factors for TB infection were also evaluated. At the end of the study, four out of five farms showed variable reductions of the initial prevalence (93.5%, 28.5%, 23.2%, and 14.3% respectively), and an overall incidence reduction of 50% was observed in BCG vaccinated goats, although adult vaccinated goats showed higher incidences than vaccinated goat kids. The unvaccinated positive animals remaining in herds and adult BCG vaccinated goats significantly enhanced the risk of infection in vaccinated animals. A systematic vaccination of goats with BCG, together with the removal of positive unvaccinated animals, may contribute to reducing the TB prevalence in goat herds.
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Affiliation(s)
- Claudia Arrieta-Villegas
- IRTA, Centre de Recerca en Sanitat Animal (CReSA, IRTA-UAB), Campus UAB, Bellaterra, Barcelona, Catalonia, Spain.
| | - Alberto Allepuz
- IRTA, Centre de Recerca en Sanitat Animal (CReSA, IRTA-UAB), Campus UAB, Bellaterra, Barcelona, Catalonia, Spain.,Departament de Sanitat i Anatomia Animals, Universitat Autònoma de Barcelona (UAB), Bellaterra, Barcelona, Catalonia, Spain
| | - Miriam Grasa
- Agrupació de Defensa Sanitària de Cabrum i Oví Lleter de Catalunya, Barbens, Catalonia, Spain
| | - Maite Martín
- IRTA, Centre de Recerca en Sanitat Animal (CReSA, IRTA-UAB), Campus UAB, Bellaterra, Barcelona, Catalonia, Spain
| | - Zoraida Cervera
- IRTA, Centre de Recerca en Sanitat Animal (CReSA, IRTA-UAB), Campus UAB, Bellaterra, Barcelona, Catalonia, Spain
| | - Irene Mercader
- Departament d'Agricultura, Ramaderia, Pesca i Alimentació, Generalitat de Catalunya, Barcelona, Catalonia, Spain
| | - Sergio López-Soria
- IRTA, Centre de Recerca en Sanitat Animal (CReSA, IRTA-UAB), Campus UAB, Bellaterra, Barcelona, Catalonia, Spain
| | - Mariano Domingo
- IRTA, Centre de Recerca en Sanitat Animal (CReSA, IRTA-UAB), Campus UAB, Bellaterra, Barcelona, Catalonia, Spain.,Departament de Sanitat i Anatomia Animals, Universitat Autònoma de Barcelona (UAB), Bellaterra, Barcelona, Catalonia, Spain
| | - Bernat Pérez de Val
- IRTA, Centre de Recerca en Sanitat Animal (CReSA, IRTA-UAB), Campus UAB, Bellaterra, Barcelona, Catalonia, Spain
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19
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Roy A, Infantes-Lorenzo JA, de la Cruz ML, Domínguez L, Álvarez J, Bezos J. Accuracy of tuberculosis diagnostic tests in small ruminants: A systematic review and meta-analysis. Prev Vet Med 2020; 182:105102. [PMID: 32739695 DOI: 10.1016/j.prevetmed.2020.105102] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 06/26/2020] [Accepted: 07/23/2020] [Indexed: 01/08/2023]
Abstract
Tuberculosis (TB) in small ruminants is a neglected disease despite its major impact on goat and sheep production and the global public health. The awareness of the role of small ruminants in the epidemiology of animal TB has increased in the last two decades, however, there is a lack of standardization of procedures and robust quantitative estimates on the accuracy of diagnostic TB tests in the scientific literature. To address this knowledge gap, all the available information regarding the use of ante-mortem diagnostic techniques in small ruminants was collected and summarized through a systematic review process. Furthermore, a random-effects meta-analysis was conducted to separately estimate the sensitivity (Se) and specificity (Sp) of cell-based tests among the retrieved studies in goats. Studies included in the meta-analysis were also evaluated using the Quality Assessment of Diagnostic Accuracy Studies included in systematic reviews adapted for animal diagnostic tests (VETQUADAS). Median pooled Se estimates of the single intradermal tuberculin (SIT) test (ranged from 0.51 to 0.59), the comparative intradermal tuberculin (CIT) test (ranged from 0.30 to 0.50) and the interferon-gamma (IFN-γ) release assay (IGRA) (ranged from 0.66 to 0.72) were lower than that reported previously in cattle, regardless the interpretation criteria and the reporting of MAP infection or vaccination. However, the specificity was adequate for all the tests (ranged from 0.95 to 0.99), except for the SIT test in MAP vaccinated herds (ranged from 0.78 to 0.90). This study provides an overview of the accuracy of diagnostic tests for TB in goats, however, the considerable between-study heterogeneity found hampered the conclusive interpretation of the pooled Se and Sp estimates. Therefore, further studies in small ruminants are necessary to optimize the diagnostic Se, which could help to design effective control strategies, accelerate the eradication of TB in these species and harmonize test procedures.
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Affiliation(s)
- A Roy
- CZ Vaccines, Porriño, Pontevedra, Spain; VISAVET Health Surveillance Centre, Complutense University of Madrid, Madrid, Spain
| | - J A Infantes-Lorenzo
- Servicio de Inmunología Microbiana, Centro Nacional de Microbiología, Instituto de Investigación Carlos III, Majadahonda, Madrid, Spain
| | - M L de la Cruz
- Faculty of Medicine, Universidad Francisco de Vitoria, UFV, Pozuelo de Alarcón, Madrid, Spain
| | - L Domínguez
- VISAVET Health Surveillance Centre, Complutense University of Madrid, Madrid, Spain; Department of Animal Health. Faculty of Veterinary Medicine, Complutense University of Madrid, Madrid, Spain
| | - J Álvarez
- VISAVET Health Surveillance Centre, Complutense University of Madrid, Madrid, Spain; Department of Animal Health. Faculty of Veterinary Medicine, Complutense University of Madrid, Madrid, Spain
| | - J Bezos
- VISAVET Health Surveillance Centre, Complutense University of Madrid, Madrid, Spain; Department of Animal Health. Faculty of Veterinary Medicine, Complutense University of Madrid, Madrid, Spain.
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20
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Arrieta-Villegas C, Infantes-Lorenzo JA, Bezos J, Grasa M, Vidal E, Mercader I, Singh M, Domingo M, de Juan L, Pérez de Val B. Evaluation of P22 Antigenic Complex for the Immuno-Diagnosis of Tuberculosis in BCG Vaccinated and Unvaccinated Goats. Front Vet Sci 2020; 7:374. [PMID: 32714950 PMCID: PMC7351524 DOI: 10.3389/fvets.2020.00374] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Accepted: 05/28/2020] [Indexed: 12/14/2022] Open
Abstract
Current eradication strategies of tuberculosis (TB) in goats mainly rely on the single intradermal tuberculin test (SIT) and single intradermal cervical comparative tuberculin tests (SICCTs). TB vaccination has been proposed as a cost-effective option in high-prevalence herds or countries where economic compensation for the slaughter of positive animals is not affordable. However, TB vaccination compromises the efficiency of tuberculin-based diagnostic tests. In this study, the performance of a new diagnostic platform, based on the P22 antigenic complex, was assessed for skin test (ST), interferon-gamma release assay (IGRA), and serology under different TB scenarios. The sensitivity (Se) of diagnostic tests was assessed in TB-infected goats from the same farm (herd A, N = 77). The specificity (Sp) was assessed in two TB-negative farms (both vaccinated against paratuberculosis): one TB unvaccinated (herd B, N = 77) and another vaccinated with bacille Calmette-Guérin (BCG) (herd C, N = 68). The single (s) P22-IGRA showed the highest Se among IGRA tests (91%), and the comparative (c) P22-ST showed the highest Sp (100% in herd B and 98% in herd C). Combined interpretation of techniques enabled the best diagnostic performances. Combining the SICCT + sP22-IGRA improved Se (97%) compared to SICCT + tuberculin-based IGRA (95%), with a reduction of Sp (95 and 100%, respectively). Besides, combination of P22-ELISA with cP22-ST or SICCT elicited a similar performance in the non-vaccination context (Se: 94 and 95%; Sp: 95 and 95%, respectively), but Sp was significantly higher for the combination with cP22-ST compared to SICCT in the TB vaccination context (95 and 79%, respectively). The combination of serological tests based on P22 and MPB83 showed higher complementarity and improved 13 percentage points the Se of P22-ELISA alone. These findings suggest that either cell-mediated or antibody-based diagnostic techniques, using the P22 antigen complex, can contribute to improve the immunodiagnostics of TB in goats under different TB control strategies.
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Affiliation(s)
- Claudia Arrieta-Villegas
- IRTA, Centre de Recerca en Sanitat Animal (CReSA, IRTA-UAB), Campus Universitat Autònoma de Barcelona, Barcelona, Spain
| | - José Antonio Infantes-Lorenzo
- Servicio de Inmunología Microbiana, Centro Nacional de Microbiología, Instituto de Investigación Carlos III, Madrid, Spain
| | - Javier Bezos
- VISAVET Health Surveillance Center, Universidad Complutense de Madrid, Madrid, Spain.,Departamento de Sanidad Animal, Universidad Complutense de Madrid, Madrid, Spain
| | - Miriam Grasa
- Agrupació de Defensa Sanitària de Cabrum i Oví Lleter de Catalunya, Barbens, Spain
| | - Enric Vidal
- IRTA, Centre de Recerca en Sanitat Animal (CReSA, IRTA-UAB), Campus Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Irene Mercader
- Departament d'Agricultura, Ramaderia, Pesca i Alimentació de la Generalitat de Catalunya, Barcelona, Spain
| | - Mahavir Singh
- Lionex Diagnostics and Therapeutics GmbH, Braunschweig, Germany
| | - Mariano Domingo
- IRTA, Centre de Recerca en Sanitat Animal (CReSA, IRTA-UAB), Campus Universitat Autònoma de Barcelona, Barcelona, Spain.,Departament de Sanitat i Anatomia Animals, Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
| | - Lucía de Juan
- VISAVET Health Surveillance Center, Universidad Complutense de Madrid, Madrid, Spain.,Departamento de Sanidad Animal, Universidad Complutense de Madrid, Madrid, Spain
| | - Bernat Pérez de Val
- IRTA, Centre de Recerca en Sanitat Animal (CReSA, IRTA-UAB), Campus Universitat Autònoma de Barcelona, Barcelona, Spain
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21
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Balseiro A, Thomas J, Gortázar C, Risalde MA. Development and Challenges in Animal Tuberculosis Vaccination. Pathogens 2020; 9:pathogens9060472. [PMID: 32549360 PMCID: PMC7350370 DOI: 10.3390/pathogens9060472] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 06/11/2020] [Accepted: 06/12/2020] [Indexed: 02/06/2023] Open
Abstract
Vaccination with Bacillus Calmette-Guérin (BCG) constituted a major advance in the prevention of human tuberculosis (TB) in the beginning of the past century. BCG has also a clear potential for use in animals and, in particular, in the main domestic species subjected to TB control programs, cattle. Nowadays, the use of BCG vaccination against TB in cattle is not permitted by European Union legislation because BCG can induce a cellular immune response producing diagnostic interference in the eradication programs based on tuberculin single and comparative intradermal tests imposed worldwide. In this review we recall the history of TB vaccination as well as different vaccine trials and the response to vaccination in both domestic and wild animals. Promising potential inactivated vaccines are also reviewed. Research studies are mainly focused to improve vaccine efficacy, and at the same time to ensure its easy administration, safety and stability in the environment. Great challenges remain, particularly in terms of vaccine candidates and also in the acceptance of vaccination. Vaccination should be included in a strategic plan for integrated control of TB under a "one health" perspective, which also includes other measures such as improved biosafety on farms to avoid or decrease contact between domestic and wild animals or control of wildlife reservoirs to avoid overabundance that may favor infection maintenance.
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Affiliation(s)
- Ana Balseiro
- Departamento de Sanidad Animal, Facultad de Veterinaria, Universidad de León, 24071 León, Spain
- Departamento de Sanidad Animal, Instituto de Ganadería de Montaña (CSIC-Universidad de León), Finca Marzanas, Grulleros, 24346 León, Spain
- Correspondence: ; Tel.: +34-98-729-1331
| | - Jobin Thomas
- SaBio-Instituto de Investigación en Recursos Cinegéticos IREC (UCLM-CSIC-JCCM), Universidad de Castilla-la Mancha (UCLM), 13071 Ciudad Real, Spain; (J.T.); (C.G.)
- Indian Council of Agricultural Research (ICAR), New Delhi 110001, India
| | - Christian Gortázar
- SaBio-Instituto de Investigación en Recursos Cinegéticos IREC (UCLM-CSIC-JCCM), Universidad de Castilla-la Mancha (UCLM), 13071 Ciudad Real, Spain; (J.T.); (C.G.)
| | - María A. Risalde
- Departamento de Anatomía y Anatomía Patológica Comparadas y Toxicología. Facultad de Veterinaria. Universidad de Córdoba (UCO), 14014 Córdoba, Spain;
- Unidad de Enfermedades Infecciosas, Grupo de Virología Clínica y Zoonosis, Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Hospital Reina Sofía, Universidad de Córdoba (UCO), 14004 Córdoba, Spain
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