{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,28]],"date-time":"2026-09-28T20:09:42Z","timestamp":1790626182161,"version":"4.1.0"},"reference-count":25,"publisher":"SAGE Publications","issue":"2","license":[{"start":{"date-parts":[[2017,12,19]],"date-time":"2017-12-19T00:00:00Z","timestamp":1513641600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Vet Pathol"],"published-print":{"date-parts":[[2018,3]]},"abstract":"<jats:p>\n                    Wild banded mongooses ( Mungos mungo) in northeastern Botswana and northwest Zimbabwe are infected with a novel Mycobacterium tuberculosis complex (MTC) pathogen, Mycobacterium mungi. We evaluated gross and histologic lesions in 62 infected mongooses (1999\u20132017). Many tissues contained multifocal irregular, lymphohistiocytic to granulomatous infiltrates and\/or multifocal or coalescing noncaseating to caseating granulomas with variable numbers of intralesional acid-fast bacilli. Over one-third of nasal turbinates examined had submucosal lymphohistiocytic to granulomatous infiltrates, erosion and ulceration of the nasal mucosa, bony remodeling, and nasal distortion. Similar inflammatory cell infiltrates expanded the dermis of the nasal planum with frequent ulceration. However, even in cases with intact epidermis, acid-fast bacilli were present in variable numbers among dermal infiltrates and on the epidermal surface among desquamated cells and debris, most commonly in small crevices or folds. In general, tissue involvement varied among cases but was highest in lymph nodes (50\/54, 93%), liver (39\/53, 74%), spleen (37\/51, 73%), and anal glands\/sacs (6\/8, 75%). Pulmonary lesions were present in 67% of sampled mongooses (35\/52) but only in advanced disseminated disease. The pathological presentation of M. mungi in the banded mongoose is consistent with pathogen shedding occurring through scent-marking behaviors (urine and anal gland secretions) with new infections arising from contact with these contaminated olfactory secretions and percutaneous movement of the pathogen through breaks in the skin, nasal planum, and\/or skin of the snout. Given the character and distribution of lesions and the presence of intracellular acid-fast bacilli, we hypothesize that pathogen spread occurs within the body through a hematogenous and\/or lymphatic route. Features of prototypical granulomas such as multinucleated giant cells and peripheral fibrosis were rarely present in affected mongooses. Acid-fast bacilli were consistently found intracellularly, even in regions of necrosis. The mongoose genome has a unique deletion (RD1\n                    <jats:sup>mon<\/jats:sup>\n                    ) that includes part of the encoding region for PPE68 (Rv3873), a gene co-operonic with PE35. These proteins can influence the host\u2019s cellular immune response to mycobacterial infections, and it remains uncertain how this deletion might contribute to observed patterns of pathology. M. mungi infection in banded mongooses is characterized by both a unique transmission and exposure route, as well as accompanying pathological features, providing an opportunity to increase our understanding of MTC pathogenesis across host-pathogen systems.\n                  <\/jats:p>","DOI":"10.1177\/0300985817741730","type":"journal-article","created":{"date-parts":[[2017,12,23]],"date-time":"2017-12-23T12:35:31Z","timestamp":1514032531000},"page":"303-309","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":21,"title":["Pathology of the Emerging\n                    <i>Mycobacterium tuberculosis<\/i>\n                    Complex Pathogen,\n                    <i>Mycobacterium mungi<\/i>\n                    , in the Banded Mongoose (\n                    <i>Mungos mungo<\/i>\n                    )"],"prefix":"10.1177","volume":"55","author":[{"given":"Kathleen A.","family":"Alexander","sequence":"first","affiliation":[{"name":"Department of Fish and Wildlife Conservation, Virginia Tech, Blacksburg, VA, USA"},{"name":"CARACAL, Centre for Conservation of African Resources, Animals, Communities, and Land Use, Kasane, Botswana"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Peter N.","family":"Laver","sequence":"additional","affiliation":[{"name":"Department of Fish and Wildlife Conservation, Virginia Tech, Blacksburg, VA, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mark C.","family":"Williams","sequence":"additional","affiliation":[{"name":"Section of Pathology, Department of Paraclinical Sciences, Faculty of Veterinary Science, University of Pretoria, Onderstepoort, South Africa"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Claire E.","family":"Sanderson","sequence":"additional","affiliation":[{"name":"Department of Fish and Wildlife Conservation, Virginia Tech, Blacksburg, VA, USA"},{"name":"CARACAL, Centre for Conservation of African Resources, Animals, Communities, and Land Use, Kasane, Botswana"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Carly","family":"Kanipe","sequence":"additional","affiliation":[{"name":"Department of Veterinary Pathology, College of Veterinary Medicine, Iowa State University, Ames, IA, USA"},{"name":"Bacterial Diseases of Livestock Research Unit, National Animal Disease Center, Ames, IA, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mitchell V.","family":"Palmer","sequence":"additional","affiliation":[{"name":"Bacterial Diseases of Livestock Research Unit, National Animal Disease Center, Ames, IA, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2017,12,19]]},"reference":[{"key":"bibr1-0300985817741730","first-page":"89","volume-title":"Pathologic Basis of Veterinary Disease","author":"Ackermann 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