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Infantes-Lorenzo JA, Romero B, Rodríguez-Bertos A, Roy A, Ortega J, de Juan L, Moreno I, Domínguez M, Domínguez L, Bezos J. Tuberculosis caused by Mycobacterium caprae in a camel (Camelus dromedarius). BMC Vet Res 2020; 16:435. [PMID: 33172453 PMCID: PMC7653750 DOI: 10.1186/s12917-020-02665-0] [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: 07/03/2020] [Accepted: 11/03/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Animal tuberculosis (TB) is distributed worldwide and has a wide range of wild and domestic reservoirs. Few studies concerning TB in camelids have been published in the last decade, particularly as regards Old World Camelids (OWC), but the increase in reports of TB outbreaks in these species in recent years suggests a high susceptibility to the infection. CASE PRESENTATION We studied a dromedary camel (Camelus dromedarius) herd (n = 24) in which a Mycobacterium caprae infection was detected. The TB infection was confirmed in one animal at necropsy through the detection of TB lesions, mainly in the abdominal organs, and the subsequent isolation of M. caprae (SB0157 spoligotype). The whole herd was additionally tested using cellular and humoral based diagnostic techniques. The intradermal tuberculin test results were compared with those obtained using P22 ELISA for the detection of specific antibodies against the M. tuberculosis complex. The TB infected animal was a positive reactor to both the intradermal tuberculin tests and P22 ELISA, while the others were negative to all the diagnostic tests. CONCLUSION The present study found M. caprae infection in OWC. This is the first report of M. caprae infection in an OWC not living in a zoo. Since the animal was born in the herd and fed with goat's milk, this practice was suspected to be the potential source of TB infection, which was not confirmed in the other animals present in the herd. Moreover, our results highlight that the intradermal tuberculin test and the P22 ELISA could be valuable tools for the diagnosis of TB in OWC.
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Affiliation(s)
- J A Infantes-Lorenzo
- Servicio de Inmunología Microbiana, Centro Nacional de Microbiología, Instituto de Salud Carlos III, Majadahonda, Madrid, Spain
| | - B Romero
- VISAVET Health Surveillance Centre, Complutense University of Madrid, Madrid, Spain
| | - A Rodríguez-Bertos
- VISAVET Health Surveillance Centre, Complutense University of Madrid, Madrid, Spain.,Department of Animal Medicine and Surgery, Faculty of Veterinary Medicine, Complutense University of Madrid, 28040, Madrid, Spain
| | - A Roy
- BIOFABRI S.L., Porriño, Pontevedra, Spain
| | - J Ortega
- VISAVET Health Surveillance Centre, Complutense University of Madrid, Madrid, Spain.,Department of Animal Health, Faculty of Veterinary Medicine, Complutense University of Madrid, 28040, Madrid, Spain
| | - L de Juan
- VISAVET Health Surveillance Centre, Complutense University of Madrid, Madrid, Spain.,Department of Animal Health, Faculty of Veterinary Medicine, Complutense University of Madrid, 28040, Madrid, Spain
| | - I Moreno
- Servicio de Inmunología Microbiana, Centro Nacional de Microbiología, Instituto de Salud Carlos III, Majadahonda, Madrid, Spain
| | - M Domínguez
- Servicio de Inmunología Microbiana, Centro Nacional de Microbiología, Instituto de Salud Carlos III, Majadahonda, 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, 28040, 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, 28040, Madrid, Spain.
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Salvador M, Gallo-Cordova Á, Moyano A, Martínez-García JC, Blanco-López MC, Puerto Morales M, Rivas M. Improved magnetic lateral flow assays with optimized nanotags for point-of-use inductive biosensing. Analyst 2020; 145:5905-5914. [DOI: 10.1039/d0an00849d] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Magnetic nanotags in lateral flow immunoassay for inductive biosensing: clusters of superparamagnetic critical size optimize the reading out.
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Affiliation(s)
- María Salvador
- Department of Physics & IUTA
- University of Oviedo
- Spain
- Istituto di Struttura della Materia - Consiglio Nazionale delle Ricerche (CNR)
- Rome
| | | | - Amanda Moyano
- Department of Physics & IUTA
- University of Oviedo
- Spain
- Department of Analytical and Physical Chemistry
- University of Oviedo
| | | | | | - M. Puerto Morales
- Instituto de Ciencia de Materiales de Madrid (ICMM-CSIC)
- 28049 Madrid
- Spain
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