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Bonilla-Aldana DK, Jiménez-Diaz SD, Lozada-Riascos C, Silva-Cajaleon K, Rodríguez-Morales AJ. Mapping Bovine Tuberculosis in Colombia, 2001-2019. Vet Sci 2024; 11:220. [PMID: 38787192 PMCID: PMC11125619 DOI: 10.3390/vetsci11050220] [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: 03/05/2024] [Revised: 05/05/2024] [Accepted: 05/08/2024] [Indexed: 05/25/2024] Open
Abstract
INTRODUCTION Bovine tuberculosis is a zoonotic disease of significant impact, particularly in countries where a pastoral economy is predominant. Despite its importance, few studies have analysed the disease's behaviour in Colombia, and none have developed maps using geographic information systems (GIS) to characterise it; as such, we developed this study to describe the temporal-spatial distribution of bovine tuberculosis in Colombia over a period of 19 years. METHODS A retrospective cross-sectional descriptive study, based on reports by the Colombian Agricultural Institute (ICA), surveillance of tuberculosis on cattle farms in Colombia from 2001 to 2019 was carried out. The data were converted into databases using Microsoft Access 365®, and multiple epidemiological maps were generated with the QGIS® version 3.36 software coupled to shape files of all the country's departments. RESULTS During the study period, 5273 bovine tuberculosis cases were identified in multiple different departments of Colombia (with a mean of 278 cases/year). Regarding its temporal distribution, the number of cases varied from a maximum of 903 cases (17.12% of the total) in 2015 to a minimum of 0 between 2001 and 2004 and between 2017 and 2019 (between 2005 and 2016, the minimum was 46 cases, 0.87%). CONCLUSIONS GIS are essential for understanding the temporospatial behaviour of zoonotic diseases in Colombia, as is the case for bovine tuberculosis, with its potential implications for the Human and One Health approaches.
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Affiliation(s)
| | - S. Daniela Jiménez-Diaz
- Grupo Colaborativo de Investigación en Enfermedades Transmitidas por Vectores, Zoonóticas y Tropicales de Risaralda (GETZ), Pereira, Risaralda 660001, Colombia;
| | | | - Kenneth Silva-Cajaleon
- Faculty of Environmental Sciences and Health Sciences, Universidad Científica del Sur, Lima 15307, Peru; (K.S.-C.); (A.J.R.-M.)
| | - Alfonso J. Rodríguez-Morales
- Faculty of Environmental Sciences and Health Sciences, Universidad Científica del Sur, Lima 15307, Peru; (K.S.-C.); (A.J.R.-M.)
- Grupo de Investigación Biomedicina, Faculty of Medicine, Fundación Universitaria Autónoma de las Américas-Institución Universitaria Visión de las Américas, Pereira, Risaralda 660003, Colombia
- Gilbert and Rose-Marie Chagoury School of Medicine, Lebanese American University, Beirut P.O. Box 36-5053, Lebanon
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Onnainty R, Marini MR, Gravisaco MJ, García EA, Aagaard C, Canal A, Granero G, Bigi F, Blanco FC. Live attenuated Mycobacterium bovis strains combined with the encapsulated H65 antigen as a vaccine strategy against bovine tuberculosis in a mouse model. Vet Microbiol 2024; 291:110007. [PMID: 38335676 DOI: 10.1016/j.vetmic.2024.110007] [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: 04/05/2023] [Revised: 01/18/2024] [Accepted: 01/19/2024] [Indexed: 02/12/2024]
Abstract
Mycobacterium bovis is an etiological agent of bovine tuberculosis (bTB) that also infects other mammals, including humans. The lack of an effective vaccine for the control of bTB highlights the need for developing new vaccines. In this study, we developed and evaluated an M. bovis strain deleted in the virulence genes phoP, esxA and esxB as a vaccine candidate against bTB in BALBc mice. The evaluated strains were the new live vaccine and BCG, alone or in combination with ncH65vD. The immunogen ncH65vD is a fusion protein H65, encapsulated together with vitamin D3, within the oily body of a nanocapsule composed of an antigen-loading polymeric shell. All vaccines conferred protection against the M. bovis challenge. However, no significant differences were detected among the vaccinated groups regarding bacterial loads in lungs and spleen. Mice vaccinated with the mutant strain plus ncH65vD showed negative Ziehl Neelsen staining of mycobacteria in their lungs, which suggests better control of bacteria replication according to this protection parameter. Consistently, this vaccination scheme showed the highest proportion of CD4 + T cells expressing the protection markers PD-1 and CXCR3 among the vaccinated groups. Correlation studies showed that PD-1 and CXCR3 expression levels in lung-resident CD4 T cells negatively correlated with the number of colony forming units of M. bovis in the lungs of mice. Therefore, the results suggest a link between the presence of PD-1 + and CXCR3 + cells at the site of the immune response against mycobacteria and the level of mycobacterial loads.
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Affiliation(s)
- Renée Onnainty
- Unidad de Investigaciones y Desarrollo en Tecnología Farmacéutica (UNITEFA) -CONICET, Departamento de Ciencias Farmacéuticas, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Argentina
| | - María Rocío Marini
- Laboratorio de Anatomía Patológica-Facultad de Ciencias Veterinarias-Universidad Nacional del Litoral-Esperanza-Santa Fe, Argentina
| | - María José Gravisaco
- Instituto de Agrobiotecnología y Biología Molecular, (IABIMO) INTA-CONICET, Argentina; Instituto de Biotecnología, CICVyA, Instituto Nacional de Tecnología Agropecuaria. N. Repetto and De los Reseros, Hurlingham 1686 Buenos Aires, Argentina
| | - Elizabeth Andrea García
- Instituto de Agrobiotecnología y Biología Molecular, (IABIMO) INTA-CONICET, Argentina; Instituto de Biotecnología, CICVyA, Instituto Nacional de Tecnología Agropecuaria. N. Repetto and De los Reseros, Hurlingham 1686 Buenos Aires, Argentina
| | - Clauss Aagaard
- Department of Infectious Disease Immunology, Statens Serum Institut, DK-2300 Copenhagen, Denmark
| | - Ana Canal
- Unidad de Investigaciones y Desarrollo en Tecnología Farmacéutica (UNITEFA) -CONICET, Departamento de Ciencias Farmacéuticas, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Argentina
| | - Gladys Granero
- Laboratorio de Anatomía Patológica-Facultad de Ciencias Veterinarias-Universidad Nacional del Litoral-Esperanza-Santa Fe, Argentina
| | - Fabiana Bigi
- Instituto de Agrobiotecnología y Biología Molecular, (IABIMO) INTA-CONICET, Argentina; Instituto de Biotecnología, CICVyA, Instituto Nacional de Tecnología Agropecuaria. N. Repetto and De los Reseros, Hurlingham 1686 Buenos Aires, Argentina.
| | - Federico Carlos Blanco
- Instituto de Agrobiotecnología y Biología Molecular, (IABIMO) INTA-CONICET, Argentina; Instituto de Biotecnología, CICVyA, Instituto Nacional de Tecnología Agropecuaria. N. Repetto and De los Reseros, Hurlingham 1686 Buenos Aires, Argentina
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3
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Ghielmetti G, Loubser J, Kerr TJ, Stuber T, Thacker T, Martin LC, O'Hare MA, Mhlophe SK, Okunola A, Loxton AG, Warren RM, Moseley MH, Miller MA, Goosen WJ. Advancing animal tuberculosis surveillance using culture-independent long-read whole-genome sequencing. Front Microbiol 2023; 14:1307440. [PMID: 38075895 PMCID: PMC10699144 DOI: 10.3389/fmicb.2023.1307440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Accepted: 10/23/2023] [Indexed: 02/12/2024] Open
Abstract
Animal tuberculosis is a significant infectious disease affecting both livestock and wildlife populations worldwide. Effective disease surveillance and characterization of Mycobacterium bovis (M. bovis) strains are essential for understanding transmission dynamics and implementing control measures. Currently, sequencing of genomic information has relied on culture-based methods, which are time-consuming, resource-demanding, and concerning in terms of biosafety. This study explores the use of culture-independent long-read whole-genome sequencing (WGS) for a better understanding of M. bovis epidemiology in African buffaloes (Syncerus caffer). By comparing two sequencing approaches, we evaluated the efficacy of Illumina WGS performed on culture extracts and culture-independent Oxford Nanopore adaptive sampling (NAS). Our objective was to assess the potential of NAS to detect genomic variants without sample culture. In addition, culture-independent amplicon sequencing, targeting mycobacterial-specific housekeeping and full-length 16S rRNA genes, was applied to investigate the presence of microorganisms, including nontuberculous mycobacteria. The sequencing quality obtained from DNA extracted directly from tissues using NAS is comparable to the sequencing quality of reads generated from culture-derived DNA using both NAS and Illumina technologies. We present a new approach that provides complete and accurate genome sequence reconstruction, culture independently, and using an economically affordable technique.
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Affiliation(s)
- Giovanni Ghielmetti
- Division of Molecular Biology and Human Genetics, South African Medical Research Council Centre for Tuberculosis Research, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
- Section of Veterinary Bacteriology, Institute for Food Safety and Hygiene, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland
| | - Johannes Loubser
- Division of Molecular Biology and Human Genetics, South African Medical Research Council Centre for Tuberculosis Research, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Tanya J. Kerr
- Division of Molecular Biology and Human Genetics, South African Medical Research Council Centre for Tuberculosis Research, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Tod Stuber
- National Veterinary Services Laboratories, Veterinary Services, Animal and Plant Health Inspection Service, United States Department of Agriculture, Ames, IA, United States
| | - Tyler Thacker
- National Veterinary Services Laboratories, Veterinary Services, Animal and Plant Health Inspection Service, United States Department of Agriculture, Ames, IA, United States
| | - Lauren C. Martin
- Division of Molecular Biology and Human Genetics, South African Medical Research Council Centre for Tuberculosis Research, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Michaela A. O'Hare
- Division of Molecular Biology and Human Genetics, South African Medical Research Council Centre for Tuberculosis Research, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Sinegugu K. Mhlophe
- Division of Molecular Biology and Human Genetics, South African Medical Research Council Centre for Tuberculosis Research, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Abisola Okunola
- Division of Molecular Biology and Human Genetics, South African Medical Research Council Centre for Tuberculosis Research, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Andre G. Loxton
- Division of Molecular Biology and Human Genetics, South African Medical Research Council Centre for Tuberculosis Research, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Robin M. Warren
- Division of Molecular Biology and Human Genetics, South African Medical Research Council Centre for Tuberculosis Research, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Mark H. Moseley
- School of Biological Sciences, University of Aberdeen, Aberdeen, United Kingdom
| | - Michele A. Miller
- Division of Molecular Biology and Human Genetics, South African Medical Research Council Centre for Tuberculosis Research, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Wynand J. Goosen
- Division of Molecular Biology and Human Genetics, South African Medical Research Council Centre for Tuberculosis Research, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
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Gortázar C, de la Fuente J, Perelló A, Domínguez L. Will we ever eradicate animal tuberculosis? Ir Vet J 2023; 76:24. [PMID: 37737206 PMCID: PMC10515422 DOI: 10.1186/s13620-023-00254-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 09/13/2023] [Indexed: 09/23/2023] Open
Abstract
Two characteristics of the Mycobacterium tuberculosis complex (MTC) are particularly relevant for tuberculosis (TB) epidemiology and control, namely the ability of this group of pathogens to survive in the environment and thereby facilitate indirect transmission via water or feed, and the capacity to infect multiple host species including human beings, cattle, wildlife, and domestic animals other than cattle. As a consequence, rather than keeping the focus on certain animal species regarded as maintenance hosts, we postulate that it is time to think of complex and dynamic multi-host MTC maintenance communities where several wild and domestic species and the environment contribute to pathogen maintenance. Regarding the global situation of animal TB, many industrialized countries have reached the Officially Tuberculosis Free status. However, infection of cattle with M. bovis still occurs in most countries around the world. In low- and middle-income countries, human and animal TB infection is endemic and bovine TB control programs are often not implemented because standard TB control through testing and culling, movement control and slaughterhouse inspection is too expensive or ethically unacceptable. In facing increasingly complex epidemiological scenarios, modern integrated disease control should rely on three main pillars: (1) a close involvement of farmers including collaborative decision making, (2) expanding the surveillance and control targets to all three host categories, the environment, and their interactions, and (3) setting up new control schemes or upgrading established ones switching from single tool test and cull approaches to integrated ones including farm biosafety and vaccination.
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Affiliation(s)
- Christian Gortázar
- SaBio Instituto de Investigación en Recursos Cinegéticos IREC (UCLM & CSIC), Ciudad Real, Spain
| | - José de la Fuente
- SaBio Instituto de Investigación en Recursos Cinegéticos IREC (UCLM & CSIC), Ciudad Real, Spain
- Department of Veterinary Pathobiology, Center for Veterinary Health Sciences, Oklahoma State University, Stillwater, OK USA
| | - Alberto Perelló
- SaBio Instituto de Investigación en Recursos Cinegéticos IREC (UCLM & CSIC), Ciudad Real, Spain
- Sabiotec, Camino de Moledores s/n. 13003, Ciudad Real, 13071 Spain
| | - Lucas Domínguez
- VISAVET and Department of Animal Health-Faculty of Veterinary Medicine, Universidad Complutense Madrid, Madrid, Spain
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5
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Sierra A, Camelo D, Lota C, Arenas NE, Soto CY. Specific identification of Mycobacterium bovis by Loop-Mediated Isothermal Amplification (LAMP) targeting the Region of Difference 12 (RD12) of the M. tuberculosis complex. MethodsX 2023; 10:102223. [PMID: 37251650 PMCID: PMC10209011 DOI: 10.1016/j.mex.2023.102223] [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: 02/13/2023] [Accepted: 04/26/2023] [Indexed: 05/31/2023] Open
Abstract
Bovine tuberculosis is a prevalent zoonotic disease that causes high risks for production animals, dairy producers and consumers, together with significant economic losses. Thus, methods for easy, fast and specific detection of Mycobacterium bovis in small and medium-sized livestock under field conditions are very required. In this work, a Loop-Mediated Isothermal Amplification LAMP-PCR targeting the Region of Difference 12 (RD12) of M. bovis genome was designed for the purpose of identification. A set of six primers designed for the isothermal amplification of five different genomic fragments led to the specific identification of M. bovis from other mycobacterial species. A basic colorimetric reaction was clearly observed at first sight under natural light, indicating positive identification of M. bovis in a maximum of 30 min of isothermal amplification at 65 °C. The limit of detection was near 50 fg of M. bovis genomic DNA, corresponding approximately to 10 copies of the genome. •The proposed LAMP-PCR amplification of M. bovis genomic DNA might be performed by untrained laboratory personnel.•Specific identification of M. bovis LAMP is possible in 30 min at 65.. C using a simple water bath.•The basic colorimetric reaction for M. bovis identification could be observed with the naked eye under natural light.
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Affiliation(s)
- Alejandro Sierra
- Chemistry Department, Faculty of Sciences, Universidad Nacional de Colombia, Ciudad Universitaria, Carrera 30 N° 45-03, 111321, Bogotá, Colombia
| | - Danna Camelo
- Chemistry Department, Faculty of Sciences, Universidad Nacional de Colombia, Ciudad Universitaria, Carrera 30 N° 45-03, 111321, Bogotá, Colombia
| | - Camila Lota
- Chemistry Department, Faculty of Sciences, Universidad Nacional de Colombia, Ciudad Universitaria, Carrera 30 N° 45-03, 111321, Bogotá, Colombia
| | - Nelson Enrique Arenas
- Biology Department, Faculty of Sciences, Universidad Antonio Nariño. Carrera 1 Este #47a-15, Bogotá, Colombia
- Faculty of Agricultural Sciences, Universidad de Cundinamarca, Diagonal 18 No. 20-29, Fusagasugá, Colombia
| | - Carlos Y. Soto
- Chemistry Department, Faculty of Sciences, Universidad Nacional de Colombia, Ciudad Universitaria, Carrera 30 N° 45-03, 111321, Bogotá, Colombia
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Moens C, Saegerman C, Fretin D, Marché S. Field evaluation of two commercial serological assays for detecting bovine tuberculosis. Res Vet Sci 2023; 159:125-132. [PMID: 37126914 DOI: 10.1016/j.rvsc.2023.04.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 04/03/2023] [Accepted: 04/11/2023] [Indexed: 05/03/2023]
Abstract
Diagnosis of bovine tuberculosis in cattle is challenging due to complex immune host response to infection that limit the performance of available diagnostic tests. In this study, performance of two commercial serological assays developed to detect bovine tuberculosis were evaluated: Enferplex Bovine TB antibody kit including 11 antigens (EnferGroup, Ireland) and IDEXX M. bovis Ab kit (IDEXX, USA). The specificity value obtained with the ELISA IDEXX M. bovis Ab test was 97.1%, whereas it was 97.1% and 95.1% for the high specificity and sensitivity settings, respectively, with the Enferplex Bovine TB antibody kit. The sensitivity of the multiplexed Enferplex Bovine TB antibody test for SICCT-positive animals was higher (N = 172; 51.7% and 58.7% with high specificity and sensitivity settings, respectively) compared to the ELISA IDEXX M. bovis Ab test (sensitivity of 36.6%). "Antigen profiles" generated by the multiplexed Enferplex method showed that five out of 11 antigens present in the test were mostly identified as positive sera in cattle originating from bTB-outbreaks. In comparison, unique profiles appeared to be correlated with false positive results. However additional studies are needed to confirm the observed antigen profiles, and their potential use as an additional diagnostic tool. Serial interpretation of the two serological tests produced higher diagnostic specificity (>99%), reducing false positive results, which is essential for a screening test when the prevalence of bovine tuberculosis is low.
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Affiliation(s)
- Charlotte Moens
- Veterinary Bacteriology Service, Sciensano, Brussels B-1050, Belgium; Louvain Institute of Biomolecular Science and Technology, Université Catholique de Louvain, Louvain-la-Neuve B-1348, Belgium
| | - Claude Saegerman
- Research Unit in Epidemiology and Risk Analysis Applied to Veterinary Sciences (UREAR-ULiège), Fundamental and Applied Research for Animal and Health (FARAH) Center, University of Liège, Liège B-4000, Belgium
| | - David Fretin
- Veterinary Bacteriology Service, Sciensano, Brussels B-1050, Belgium
| | - Sylvie Marché
- Veterinary Bacteriology Service, Sciensano, Brussels B-1050, Belgium.
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7
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Marianelli C, Verrubbi V, Pruiti Ciarello F, Ippolito D, Pacciarini ML, Di Marco Lo Presti V. Geo-epidemiology of animal tuberculosis and Mycobacterium bovis genotypes in livestock in a small, high-incidence area in Sicily, Italy. Front Microbiol 2023; 14:1107396. [PMID: 37007490 PMCID: PMC10063800 DOI: 10.3389/fmicb.2023.1107396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Accepted: 02/23/2023] [Indexed: 03/19/2023] Open
Abstract
IntroductionThe persistence of animal tuberculosis (TB) in livestock is a major concern in Sicily, Italy. The objective of this study was to elucidate the transmission dynamics of M. bovis infection in a highly circumscribed, and at the same time geographically diverse, high-risk area of the island through an in-depth geo-epidemiological investigation of TB in cattle and black pigs raised in small-scale extensive farms across the district of Caronia.MethodsWe used genotype analysis coupled with geographic information system (GIS) technology and phylogenetic inference to characterize the spatial distribution of TB and M. bovis genotypes in livestock and the genetic relationships between M. bovis isolates. A total of 589 M. bovis isolates collected from slaughtered cattle (n = 527) and Sicilian black pigs (n = 62) over a 5-year period (2014–2018) were included in the study.ResultsTB was widespread throughout the district and was most frequent in the north-central area of the district, especially along one of the district’s streams. We identified a total of 62 M. bovis genotypes. Identical genetic profiles were isolated from both neighboring and non-neighburing herds. The 10 most frequent genotypes, accounting for 82% of M. bovis isolates, showed geographic specificities in that they tended to cluster in specific spatial niches. The landscape structure of these niches—i.e. steep slopes, rocky ridges, meadows and streams—is likely to have had a significant influence on the distribution of TB among livestock in Caronia. Higher concentrations of TB were observed along streams and in open meadows, while rocky ridges and slopes appeared to have hampered the spread of TB.DiscussionThe geographical distribution of TB cases among livestock in Caronia is consistent with several epidemiological scenarios (e.g., high density of infected herds along the streams or in hilly plateau where livestock share pastures). Landscape structure is likely to play an important role in the transmission and persistence of M. bovis infection across the district. Additional potential risk factors, such as livestock trading and extensive breeding methods, are also discussed. Our results will contribute to the improvement of surveillance, control and eradication activities of TB in Sicily by the implementation of ad hoc TB control measures, especially in farms located along streams, sharing common pastures or with mixed animal species.
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Affiliation(s)
- Cinzia Marianelli
- Department of Food Safety, Nutrition and Veterinary Public Health, Istituto Superiore di Sanità, Rome, Italy
- *Correspondence: Cinzia Marianelli,
| | - Vladimiro Verrubbi
- Agenzia nazionale per le nuove tecnologie, l’energia e lo sviluppo economico sostenibile, Rome, Italy
| | - Flavia Pruiti Ciarello
- Istituto Zooprofilattico Sperimentale della Sicilia, Sezione Diagnostica Barcellona Pozzo di Gotto, Barcellona Pozzo di Gotto, Italy
| | - Dorotea Ippolito
- Istituto Zooprofilattico Sperimentale della Sicilia, Sezione Diagnostica Barcellona Pozzo di Gotto, Barcellona Pozzo di Gotto, Italy
| | - Maria Lodovica Pacciarini
- National Reference Centre for Bovine Tuberculosis, Istituto Zooprofilattico Sperimentale della Lombardia e dell’Emilia Romagna, Brescia, Italy
| | - Vincenzo Di Marco Lo Presti
- Istituto Zooprofilattico Sperimentale della Sicilia, Sezione Diagnostica Barcellona Pozzo di Gotto, Barcellona Pozzo di Gotto, Italy
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Santos N, Colino EF, Arnal MC, de Luco DF, Sevilla I, Garrido JM, Fonseca E, Valente AM, Balseiro A, Queirós J, Almeida V, Vicente J, Gortázar C, Alves PC. Complementary roles of wild boar and red deer to animal tuberculosis maintenance in multi-host communities. Epidemics 2022; 41:100633. [PMID: 36174428 DOI: 10.1016/j.epidem.2022.100633] [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: 02/06/2022] [Revised: 08/24/2022] [Accepted: 09/20/2022] [Indexed: 12/29/2022] Open
Abstract
The contribution of wildlife species to pathogen maintenance in multi-host communities has seldom been quantified. To assess the relative contribution of the main wildlife hosts of animal tuberculosis (TB) to its maintenance, we estimated the basic reproduction number (R0) of Mycobacterium tuberculosis complex in wild boar and red deer at 29 sites in the Iberian Peninsula. Host abundance and true TB prevalence were estimated for each species at each site by sampling from distributions incorporating the uncertainty in the proportion of the population harvested each year, sensitivity, and specificity of the diagnostic methods, while excretion of mycobacteria was estimated using site-occupancy models. The distributions of these parameters were then used to estimate, at each site, the R0,wild boar (range 0.1 - 55.9, average 8.7, standard deviation 11.8), and the R0,red deer (0.1 - 18.9, 2.2, 3.9). Animal TB is maintained in epidemiological scenarios ranging from any single species acting as a maintenance host (the wild boar in 18 sites and the red deer in 5), to facultative multi-host disease (6 sites). The prevalence of TB in the red deer is likely an important driver of the epidemiology in multi-host communities. The wild boar was the main maintenance host of TB in most of the study sites and could have an epidemiological role linking the wildlife multi-host community and livestock.
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Affiliation(s)
- Nuno Santos
- CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Universidade do Porto, Vairão, Portugal; BIOPOLIS Program in Genomics, Biodiversity and Land Planning, CIBIO, Vairão, Portugal.
| | - Elisa Ferreras Colino
- Instituto de Investigación en Recursos Cinegéticos (IREC, CSIC-UCLM-JCCM), Ciudad Real, Spain
| | - María Cruz Arnal
- Departamento de Patología Animal, Facultad de Veterinaria, Universidad de Zaragoza, Zaragoza, Spain
| | - Daniel Fernández de Luco
- Departamento de Patología Animal, Facultad de Veterinaria, Universidad de Zaragoza, Zaragoza, Spain
| | - Iker Sevilla
- Animal Health Department. NEIKER-Basque Institute for Agricultural Research and Development. Basque Research and Technology Alliance (BRTA), Derio, Bizkaia, Spain
| | - Joseba M Garrido
- Animal Health Department. NEIKER-Basque Institute for Agricultural Research and Development. Basque Research and Technology Alliance (BRTA), Derio, Bizkaia, Spain
| | - Eliana Fonseca
- Instituto de Conservação da Natureza e das Florestas, I.P., Braga, Portugal
| | - Ana M Valente
- CESAM, Departamento de Biologia, Universidade de Aveiro, Aveiro, Portugal
| | - Ana Balseiro
- Animal Health Department, Instituto de Ganadería de Montaña (IGM, CSIC-ULE), León, Spain; Animal Health Department, Facultad de Veterinaria, Universidad de León, León, Spain, Instituto de Ganadería de Montaña (IGM, CSIC-ULE), León, Spain
| | - João Queirós
- CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Universidade do Porto, Vairão, Portugal; BIOPOLIS Program in Genomics, Biodiversity and Land Planning, CIBIO, Vairão, Portugal
| | - Virgílio Almeida
- Faculty of Veterinary Medicine, University of Lisbon, Campus da Ajuda, Lisboa, Portugal; CIISA - Centre for Interdisciplinary Research in Animal Health, Faculty of Veterinary Medicine, University of Lisbon, Campus da Ajuda, Lisboa, Portugal
| | - Joaquín Vicente
- Instituto de Investigación en Recursos Cinegéticos (IREC, CSIC-UCLM-JCCM), Ciudad Real, Spain
| | - Christian Gortázar
- Instituto de Investigación en Recursos Cinegéticos (IREC, CSIC-UCLM-JCCM), Ciudad Real, Spain
| | - Paulo Célio Alves
- CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Universidade do Porto, Vairão, Portugal; BIOPOLIS Program in Genomics, Biodiversity and Land Planning, CIBIO, Vairão, Portugal; Department of Biology, Faculty of Sciences, University of Porto, Porto, Portugal; Estação Biológica de Mértola (EBM), CIBIO, Mértola, Portugal
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Ntivuguruzwa JB, Michel AL, Kolo FB, Mwikarago IE, Ngabonziza JCS, van Heerden H. Prevalence of bovine tuberculosis and characterization of the members of the Mycobacterium tuberculosis complex from slaughtered cattle in Rwanda. PLoS Negl Trop Dis 2022; 16:e0009964. [PMID: 35921351 PMCID: PMC9377585 DOI: 10.1371/journal.pntd.0009964] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 08/15/2022] [Accepted: 07/08/2022] [Indexed: 11/24/2022] Open
Abstract
Background Bovine tuberculosis (bTB) is an endemic disease in Rwanda, but little is known about its prevalence and causative mycobacterial species. The disease causes tremendous losses in livestock and wildlife and remains a significant threat to public health. Materials and methods A cross-sectional study employing a systematic random sampling of cattle (n = 300) with the collection of retropharyngeal lymph nodes and tonsils (n = 300) irrespective of granulomatous lesions was carried out in six abattoirs to investigate the prevalence and identify mycobacterial species using culture, acid-fast bacteria staining, polymerase chain reaction, and GeneXpert assay. Individual risk factors and the origin of samples were analysed for association with the prevalence. Findings Of the 300 sample pools, six were collected with visible TB-like lesions. Our findings demonstrated the presence of Mycobacterium tuberculosis complex (MTBC) in 1.7% (5/300) of sampled slaughtered cattle. Mycobacterium bovis was isolated from 1.3% (4/300) animals while one case was caused by a rifampicin-resistant (RR) M. tuberculosis. Non-tuberculous mycobacteria were identified in 12.0% (36/300) of the sampled cattle. There were no significant associations between the prevalence and abattoir category, age, sex, and breeds of slaughtered cattle. Conclusions This study is the first in Rwanda to isolate both M. bovis and RR M. tuberculosis in slaughtered cattle indicating that bTB is present in Rwanda with a low prevalence. The isolation of RR M. tuberculosis from cattle indicates possible zooanthroponotic transmission of M. tuberculosis and close human-cattle contact. To protect humans against occupational zoonotic diseases, it is essential to control bTB in cattle and raise the awareness among all occupational groups as well as reinforce biosafety at the farm level and in the abattoirs. Tuberculosis in cattle (bTB) causes financial losses to livestock owners and is a disease transmissible to humans especially those with an occupational risk through exposure to infected animals and animal products. This study aimed to identify the prevalence of bTB and characterize the mycobacterial species from cattle slaughtered in the six abattoirs in Rwanda. Four M. bovis, as well as one rifampicin-resistant (RR) M. tuberculosis, were identified from slaughtered cattle and, thus, the apparent bTB prevalence was 1.7% (5/300). Likely, the RR M. tuberculosis isolate was mostly likely of human origin and transmitted to cattle during close human-cattle contact. It is therefore essential to control bTB in cattle and reinforce the protection of farmworkers and abattoir workers who are always exposed to infected animals.
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Affiliation(s)
- Jean Bosco Ntivuguruzwa
- Bovine Tuberculosis and Brucellosis Research Programme, Department of Veterinary Tropical Diseases, Faculty of Veterinary Science, University of Pretoria; Pretoria, South Africa
- Department of Veterinary Medicine, College of Veterinary Medicine, University of Rwanda, Kigali, Rwanda
- * E-mail:
| | - Anita L. Michel
- Bovine Tuberculosis and Brucellosis Research Programme, Department of Veterinary Tropical Diseases, Faculty of Veterinary Science, University of Pretoria; Pretoria, South Africa
| | - Francis Babaman Kolo
- Bovine Tuberculosis and Brucellosis Research Programme, Department of Veterinary Tropical Diseases, Faculty of Veterinary Science, University of Pretoria; Pretoria, South Africa
| | - Ivan Emil Mwikarago
- Department of Human Medicine and Device assessment and Registration, Rwanda Food and Drug Administration, Kigali, Rwanda
| | - Jean Claude Semuto Ngabonziza
- National Reference Laboratory Division, Department of Biomedical Services, Rwanda Biomedical Centre, Kigali, Rwanda
- Department of Clinical Biology, School of Medicine and Pharmacy, College of Medicine and Health Sciences, University of Rwanda, Kigali, Rwanda
| | - Henriette van Heerden
- Bovine Tuberculosis and Brucellosis Research Programme, Department of Veterinary Tropical Diseases, Faculty of Veterinary Science, University of Pretoria; Pretoria, South Africa
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Gortázar C, Fernandez-de-Simon J. One tool in the box: the role of hunters in mitigating the damages associated to abundant wildlife. EUR J WILDLIFE RES 2022. [DOI: 10.1007/s10344-022-01578-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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11
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Pérez-González J, Carranza J, Martínez R, Benítez-Medina JM. Host Genetic Diversity and Infectious Diseases. Focus on Wild Boar, Red Deer and Tuberculosis. Animals (Basel) 2021; 11:1630. [PMID: 34072907 PMCID: PMC8229303 DOI: 10.3390/ani11061630] [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: 05/03/2021] [Revised: 05/19/2021] [Accepted: 05/28/2021] [Indexed: 12/16/2022] Open
Abstract
Host genetic diversity tends to limit disease spread in nature and buffers populations against epidemics. Genetic diversity in wildlife is expected to receive increasing attention in contexts related to disease transmission and human health. Ungulates such as wild boar (Sus scrofa) and red deer (Cervus elaphus) are important zoonotic hosts that can be precursors to disease emergence and spread in humans. Tuberculosis is a zoonotic disease with relevant consequences and can present high prevalence in wild boar and red deer populations. Here, we review studies on the genetic diversity of ungulates and determine to what extent these studies consider its importance on the spread of disease. This assessment also focused on wild boar, red deer, and tuberculosis. We found a disconnection between studies treating genetic diversity and those dealing with infectious diseases. Contrarily, genetic diversity studies in ungulates are mainly concerned with conservation. Despite the existing disconnection between studies on genetic diversity and studies on disease emergence and spread, the knowledge gathered in each discipline can be applied to the other. The bidirectional applications are illustrated in wild boar and red deer populations from Spain, where TB is an important threat for wildlife, livestock, and humans.
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Affiliation(s)
- Javier Pérez-González
- Biology and Ethology Unit, Veterinary Faculty, University of Extremadura, 10003 Cáceres, Spain
| | - Juan Carranza
- Wildlife Research Unit (UIRCP), University of Córdoba, 14071 Córdoba, Spain;
| | - Remigio Martínez
- Infectious Pathology Unit, Veterinary Faculty, University of Extremadura, 10003 Cáceres, Spain; (R.M.); (J.M.B.-M.)
| | - José Manuel Benítez-Medina
- Infectious Pathology Unit, Veterinary Faculty, University of Extremadura, 10003 Cáceres, Spain; (R.M.); (J.M.B.-M.)
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Martínez-Guijosa J, Lima-Barbero JF, Acevedo P, Cano-Terriza D, Jiménez-Ruiz S, Barasona JÁ, Boadella M, García-Bocanegra I, Gortázar C, Vicente J. Description and implementation of an On-farm Wildlife Risk Mitigation Protocol at the wildlife-livestock interface: Tuberculosis in Mediterranean environments. Prev Vet Med 2021; 191:105346. [PMID: 33895501 DOI: 10.1016/j.prevetmed.2021.105346] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 02/22/2021] [Accepted: 04/06/2021] [Indexed: 12/27/2022]
Abstract
Animal tuberculosis (TB), which is caused by the Mycobacterium tuberculosis complex (MTC), is a zoonotic disease of global concern, and has a wide variety of wild and domestic reservoirs that can establish complex epidemiological systems. Of all the strategies employed to control TB, reducing the risks of interaction at the wildlife-livestock interface is a cornerstone. However, detailed protocols with which to assess and implement farm-specific preventive actions that can be employed against interactions with wildlife are lacking for extensive production systems. We describe an On-farm Wildlife Risk Mitigation Protocol that is applicable to beef cattle farming in Mediterranean environments in order to control the wildlife-livestock interaction and MTC transmission through the use of Farm-specific Action Plans (FsAP). We assessed the implementation and verification of FsAP in terms of its practical feasibility and acceptability by farmers (n=55 farms). Of the potential risk points, waterers (41.3 %) and waterholes (24.4 %) were the most common. Waterholes and springs were identified as the points with the greatest risks. Actions related to water management were essential on most farms (99 % of the high-risk points), as were those regarding wildlife management (36.4 % of the farms provided wild boar or cervids with supplementary food for hunting purposes). Overall, 75 % of the farmers adopted the plans to some extent, with an average of 31.8 % of actions implemented, but with high variability depending on the type of actions proposed. Farmers prioritised low-cost measures. Our results, in their entirety, indicate that the adoption of this On-farm Wildlife Risk Mitigation Protocol is practical and feasible in Mediterranean ecosystems, and can be easily transferred to professionals and adapted to other bioregions or epidemiological systems. The subsequent evaluation of FsAPs in terms of efficacy and cost-effectiveness, along with increasing their acceptance by farmers, are necessary steps for the further development of TB Risk Mitigation Programmes at a nationwide level.
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Affiliation(s)
| | | | | | - David Cano-Terriza
- Departamento de Sanidad Animal, Facultad de Veterinaria, Universidad de Córdoba (UCO), 14014, Córdoba, Spain
| | - Saúl Jiménez-Ruiz
- SaBio, IREC (UCLM-CSIC-JCCM), 13071, Ciudad Real, Spain; Departamento de Sanidad Animal, Facultad de Veterinaria, Universidad de Córdoba (UCO), 14014, Córdoba, Spain
| | - Jose Ángel Barasona
- VISAVET, Animal Health Department, Complutense University of Madrid, Av. Puerta del Hierro s/n, 28040, Madrid, Spain
| | - Mariana Boadella
- SABIOTEC, Edificio Polivalente de la UCLM, Local 1.22 Camino de Moledores, s/n 13071, Ciudad Real, Spain
| | - Ignacio García-Bocanegra
- Departamento de Sanidad Animal, Facultad de Veterinaria, Universidad de Córdoba (UCO), 14014, Córdoba, Spain
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