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Han HS, Gunn-Moore D. First report of Mycobacteria avium complex ( Mycobacteria intracellulare) in a cat from Southeast Asia. JFMS Open Rep 2023; 9:20551169231194311. [PMID: 37810578 PMCID: PMC10559717 DOI: 10.1177/20551169231194311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/10/2023] Open
Abstract
Case summary A 3-year-old castrated male domestic shorthaired cat, with indoor-outdoor access, was presented for chronic, progressive multinodular to generalised subcutaneous nodules covering much of its body. Previous medical treatment with doxycycline had been unhelpful. Fine-needle aspiration of the nodules revealed intra- and extracellular multibacillary negative staining rods in pyogranulomatous inflammation. Bacterial culture and susceptibility studies isolated Mycobacterium intracellulare, with zimine as the drug of choice for treatment. Initial triple therapy with rifampicin, azithromycin and pradofloxacin was ineffective, and was changed to triple therapy with clofazimine, clarithromycin and doxycycline once drug susceptibility was known, which was given for 3 months, after which long-term therapy with clofazimine and clarithromycin was continued. Relevance and novel information Slow growing M intracellulare, a member of the Mycobacterium avium complex (MAC), has never been reported to cause disease in cats from Singapore and, by extension, Southeast Asia. The infection in this patient resulted in subcutaneous nodules, which started on the face, then spread to the feet and much of the rest of its body. This is in contrast to that commonly reported for infection with M avium, which is also a member of MAC, and may not only present with similar signs in cats, but also progress to systemic spread. Susceptibility studies suggest clofazimine as the drug of choice when treating this infection, and this case supports its use as empirical therapy for veterinarians treating this disease in this region while awaiting culture and sensitivity results.
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Affiliation(s)
- Hock Siew Han
- Veterinary Emergency and Specialty Hospital, Singapore
| | - Danièlle Gunn-Moore
- The Royal (Dick) School of Veterinary Studies and The Roslin Institute, The University of Edinburgh, Edinburgh, Midlothian, UK
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Kasir D, Osman N, Awik A, El Ratel I, Rafei R, Al Kassaa I, El Safadi D, Salma R, El Omari K, Cummings KJ, Kassem II, Osman M. Zoonotic Tuberculosis: A Neglected Disease in the Middle East and North Africa (MENA) Region. Diseases 2023; 11:diseases11010039. [PMID: 36975589 PMCID: PMC10047434 DOI: 10.3390/diseases11010039] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 02/20/2023] [Accepted: 02/22/2023] [Indexed: 03/05/2023] Open
Abstract
Mycobacterium bovis is the etiologic agent of bovine tuberculosis (BTB), a serious infectious disease in both humans and animals. BTB is a zoonotic disease primarily affecting cattle and occasionally humans infected through close contact with infected hosts or the consumption of unpasteurized dairy products. Zoonotic tuberculosis is strongly associated with poverty and poor hygiene, and low- and middle-income countries bear the brunt of the disease. BTB has been increasingly recognized as a growing public health threat in developing countries. However, the lack of effective surveillance programs in many of these countries poses a barrier to accurately determining the true burden of this disease. Additionally, the control of BTB is threatened by the emergence of drug-resistant strains that affect the effectiveness of current treatment regimens. Here, we analyzed current trends in the epidemiology of the disease as well as the antimicrobial susceptibility patterns of M. bovis in the Middle East and North Africa (MENA) region, a region that includes several developing countries. Following PRISMA guidelines, a total of 90 studies conducted in the MENA region were selected. Our findings revealed that the prevalence of BTB among humans and cattle varied significantly according to the population size and country in the MENA region. Most of the available studies were based on culture and/or PCR strategies and were published without including data on antimicrobial resistance and molecular typing. Our findings highlighted the paramount need for the use of appropriate diagnostic tools and the implementation of sustainable control measures, especially at the human/animal interface, in the MENA region.
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Affiliation(s)
- Dalal Kasir
- Quality Control Center Laboratories at the Chamber of Commerce, Industry & Agriculture of Tripoli & North Lebanon, Tripoli 1300, Lebanon
| | - Nour Osman
- Department of Epidemiology and Population Health, Faculty of Health Sciences, American University of Beirut, Beirut 1100, Lebanon
| | - Aicha Awik
- Laboratoire Microbiologie Santé et Environnement (LMSE), Doctoral School of Sciences and Technology, Faculty of Public Health, Lebanese University, Tripoli 1300, Lebanon
| | - Imane El Ratel
- Laboratoire Microbiologie Santé et Environnement (LMSE), Doctoral School of Sciences and Technology, Faculty of Public Health, Lebanese University, Tripoli 1300, Lebanon
| | - Rayane Rafei
- Laboratoire Microbiologie Santé et Environnement (LMSE), Doctoral School of Sciences and Technology, Faculty of Public Health, Lebanese University, Tripoli 1300, Lebanon
| | - Imad Al Kassaa
- Fonterra Research and Development Center, Palmerston North 4410, New Zealand
| | - Dima El Safadi
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool L3 5QA, UK
| | - Rayane Salma
- Quality Control Center Laboratories at the Chamber of Commerce, Industry & Agriculture of Tripoli & North Lebanon, Tripoli 1300, Lebanon
| | - Khaled El Omari
- Quality Control Center Laboratories at the Chamber of Commerce, Industry & Agriculture of Tripoli & North Lebanon, Tripoli 1300, Lebanon
- Laboratoire Microbiologie Santé et Environnement (LMSE), Doctoral School of Sciences and Technology, Faculty of Public Health, Lebanese University, Tripoli 1300, Lebanon
| | - Kevin J. Cummings
- Department of Public and Ecosystem Health, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853, USA
| | - Issmat I. Kassem
- Center for Food Safety, Department of Food Science and Technology, University of Georgia, 1109 Experiment Street, Griffin, GA 30223, USA
| | - Marwan Osman
- Department of Public and Ecosystem Health, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853, USA
- Cornell Atkinson Center for Sustainability, Cornell University, Ithaca, NY 14853, USA
- Correspondence: or ; Tel.: +1-607-262-4219
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Goosen WJ, Kleynhans L, Kerr TJ, van Helden PD, Buss P, Warren RM, Miller MA. Improved detection of Mycobacterium tuberculosis and M. bovis in African wildlife samples using cationic peptide decontamination and mycobacterial culture supplementation. J Vet Diagn Invest 2021; 34:61-67. [PMID: 34510986 PMCID: PMC8688974 DOI: 10.1177/10406387211044192] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
In South Africa, mycobacterial culture is regarded as the gold standard for the detection of Mycobacterium tuberculosis complex (MTBC) infection in wildlife even though it is regarded as “imperfect.” We compared a novel decontamination and mycobacterial culture technique (TiKa) to the conventional mycobacterium growth indicator tube (MGIT) system using known amounts of bacilli and clinical samples from MTBC-infected African buffaloes (Syncerus caffer), white rhinoceros (Ceratotherium simum), and African elephants (Loxodonta africana). Use of the TiKa-KiC decontamination agent on samples spiked with 10,000 to 10 colony forming units (cfu) of M. bovis (SB0121) and M. tuberculosis (H37Rv) had no effect on isolate recovery in culture. In contrast, decontamination with MGIT MycoPrep resulted in no growth of M. bovis samples at concentrations < 1,000 cfu and M. tuberculosis samples < 100 cfu. Subsequently, we used the TiKa system with stored clinical samples (various lymphatic tissues) collected from wildlife and paucibacillary bronchoalveolar lavage fluid, trunk washes, and endotracheal tube washes from 3 species with known MTBC infections. Overall, MTBC recovery by culture was improved significantly (p < 0.01) by using TiKa compared to conventional MGIT, with 54 of 57 positive specimens versus 25 of 57 positive specimens, respectively. The TiKa mycobacterial growth system appears to significantly enhance the recovery of MTBC members from tissue and paucibacillary respiratory samples collected from African buffaloes, African elephants, and white rhinoceros. Moreover, the TiKa system may improve success of MTBC culture from various sample types previously deemed unculturable from other species.
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Affiliation(s)
- Wynand J Goosen
- DSI-NRF Centre of Excellence for Biomedical Tuberculosis Research, South African Medical Research Council Centre for Tuberculosis Research, Division of Molecular Biology and Human Genetics, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Léanie Kleynhans
- DSI-NRF Centre of Excellence for Biomedical Tuberculosis Research, South African Medical Research Council Centre for Tuberculosis Research, Division of Molecular Biology and Human Genetics, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Tanya J Kerr
- DSI-NRF Centre of Excellence for Biomedical Tuberculosis Research, South African Medical Research Council Centre for Tuberculosis Research, Division of Molecular Biology and Human Genetics, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Paul D van Helden
- DSI-NRF Centre of Excellence for Biomedical Tuberculosis Research, South African Medical Research Council Centre for Tuberculosis Research, Division of Molecular Biology and Human Genetics, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Peter Buss
- Veterinary Wildlife Services, Kruger National Park, South African National Parks, Skukuza, South Africa
| | - Robin M Warren
- DSI-NRF Centre of Excellence for Biomedical Tuberculosis Research, South African Medical Research Council Centre for Tuberculosis Research, Division of Molecular Biology and Human Genetics, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Michele A Miller
- DSI-NRF Centre of Excellence for Biomedical Tuberculosis Research, South African Medical Research Council Centre for Tuberculosis Research, Division of Molecular Biology and Human Genetics, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
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Tazerart F, Saad J, Sahraoui N, Yala D, Niar A, Drancourt M. Whole Genome Sequence Analysis of Mycobacterium bovis Cattle Isolates, Algeria. Pathogens 2021; 10:pathogens10070802. [PMID: 34202816 PMCID: PMC8308521 DOI: 10.3390/pathogens10070802] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 06/11/2021] [Accepted: 06/18/2021] [Indexed: 11/16/2022] Open
Abstract
Mycobacterium bovis (M. bovis), a Mycobacterium tuberculosis complex species responsible for tuberculosis in cattle and zoonotic tuberculosis in humans, is present in Algeria. In Algeria however, the M. bovis population structure is unknown, limiting understanding of the sources and transmission of bovine tuberculosis. In this study, we identified the whole genome sequence (WGS) of 13 M. bovis strains isolated from animals exhibiting lesions compatible with tuberculosis, which were slaughtered and inspected in five slaughterhouses in Algeria. We found that six isolates were grouped together with reference clinical strains of M. bovis genotype-Unknown2. One isolate was related to M. bovis genotype-Unknown7, one isolate was related to M. bovis genotype-Unknown4, three isolates belonged to M. bovis genotype-Europe 2 and there was one new clone for two M. bovis isolates. Two isolates from Blida exhibited no pairwise differences in single nucleotide polymorphisms. None of these 13 isolates were closely related to four zoonotic M. bovis isolates previously characterized in Algeria. In Algeria, the epidemiology of bovine tuberculosis in cattle is partly driven by cross border movements of animals and animal products.
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Affiliation(s)
- Fatah Tazerart
- Laboratoire d’Agro Biotechnologie et de Nutrition des Zones Semi Arides, Université Ibn Khaldoun, Tiaret 14000, Algeria;
- Institut des Sciences Vétérinaires, Université de Blida 1, Blida 09000, Algeria;
- Institut Hospitalo-Universitaire Méditerranée Infection, 13005 Marseille, France;
| | - Jamal Saad
- Institut Hospitalo-Universitaire Méditerranée Infection, 13005 Marseille, France;
- Faculté de Médecine, Aix-Marseille-Université, IHU Méditerranée Infection, 13005 Marseille, France
| | - Naima Sahraoui
- Institut des Sciences Vétérinaires, Université de Blida 1, Blida 09000, Algeria;
| | - Djamel Yala
- Laboratoire National de Référence pour la Tuberculose et Mycobactéries, Institut Pasteur d’Algérie, Alger 16015, Algeria;
| | - Abdellatif Niar
- Laboratoire de Reproduction des Animaux de la Ferme, Université Ibn Khaldoun, Tiaret 14000, Algeria;
| | - Michel Drancourt
- Institut Hospitalo-Universitaire Méditerranée Infection, 13005 Marseille, France;
- Faculté de Médecine, Aix-Marseille-Université, IHU Méditerranée Infection, 13005 Marseille, France
- Correspondence:
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