Mycotic pneumonia in a domestic cat caused by Mycoleptodiscus indicus has zoonotic potential and may pose a threat to national security
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Environmental conditions play a critical role in disease transmission in companion animals, particularly in humid settings that facilitate pathogen proliferation and spread. Mycoleptodiscus indicus is an opportunistic, saprobic, and endophytic fungus that causes systemic infections in various hosts, including humans. This case report describes a fatal M. indicus infection in a kitten. Diagnosis involves clinical examination, cytology, fungal culture, necropsy, and histopathological analysis. Gross pathology revealed swelling and hemorrhage in the heart, spleen, kidneys, and liver, with pulmonary necrosis and hemorrhage. Histopathological examination revealed the presence of fungal spores in the pulmonary tissue. Cytological and culture analyses confirmed the presence of M. indicus. The kitten's death resulted from respiratory invasion by M. indicus spores, which led to systemic dissemination and sepsis.
Crespo‐Szabo SM, Stafford JR. 2021. Diagnosis, treatment, and out-come in a dog with systemic Mycoleptodiscus indicus infection. Journal of Veterinary Internal Medicine. 35(4):1972. https://doi.org/10.1111/jvim.16182 | PMid:34048620 PMCid:PMC8295661
Galimberti R, Torre AC, Baztán MC, Rodriguez-Chiappetta F. 2012. Emerging systemic fungal infections. Clinics in dermatology. 30(6):633-50. https://doi.org/10.1016/j.clindermatol.2012.01.011 | PMid:23068151
Garrison AP, Procop GW, Vincek V, Moon J, Morris MI, Doblecki‐Lewis S, Cleary TJ, Brust D, Rosa‐Cunha I. 2008. A case of subcutaneous Mycoleptodiscus indicus infection in a liver transplant recipient successfully treated with antifungal therapy. Transplant infectious disease. 10(3):218-20. https://doi.org/10.1111/j.1399-3062.2007.00278.x | PMid:17944811
Gomez DE, Weese JS. 2024. Antimicrobial prophylaxis, metaphylaxis, and the treatment of immunocompromised patients. Antimicrobial Therapy in Veterinary Medicine. 487-511. https://doi.org/10.1002/9781119654629.ch24
Hernãndez-Restrepo M, Bezerra JD, Tan YP, Wiederhold N, Crous PW, Guarro J, Gené J. 2019. Re-evaluation of Mycoleptodiscus species and morphologically similar fungi. Persoonia-Molecular Phylogeny and Evolution of Fungi. 42(1):205-27. https://doi.org/10.3767/persoonia.2019.42.08 | PMid:31551619 PMCid:PMC6712544
Hoang TK, Nguyen QH, Nguyen TN, Tran TH, Le QT. 2022. Study on the in vitro and in vivo antifungal activities of nano-silver against mycoleptodiscus indicus causing leaf blight on lotus in Vietnam. Indian Journal of Agricultural Research. 56(6):726-33.
Hurst CJ. 2019. Dirt and disease: the ecology of soil fungi and plant fungi that are infectious for vertebrates. In Understanding terrestrial microbial communities. Cham: Springer International Publishing. pp. 289-405 https://doi.org/10.1007/978-3-030-10777-2_9
Koo S, Sutton DA, Yeh WW, Thompson EH, Sigler L, Shearer JF, Hofstra DE, Wickes BL, Marty FM. 2012. Invasive Mycoleptodiscus fungal cellulitis and myositis. Medical Mycology. 50(7):740-5. https://doi.org/10.3109/13693786.2012.656717 |PMid:22332907
Maboni G, Krimer P, Baptista R, Lorton A, Anderson C, Sanchez S. 2019. Laboratory diagnostics, phylogenetic analysis and clinical out-come of a subcutaneous Mycoleptodiscus indicus infection in an immunocompetent cat. BMC veterinary research. 15(1):354. https://doi.org/10.1186/s12917-019-2132-1 | PMid:31639008 PMCid:PMC6805521
Metry CA, Hoien-Dalen PS, Maddox CW, Thompson EH, Sutton DA, Romanelli AM, Wickes BL, MacNeill AL. 2010. Subcutaneous Mycoleptodiscus indicus infection in an immunosuppressed dog. Journal of clinical microbiology. 48(8):3008-11. https://doi.org/10.1128/JCM.02368-09 | PMid:20519473 PMCid:PMC2916585
Revankar SG, Baddley JW, Chen SC, Kauffman CA, Slavin M, Vazquez JA, Seas C, Morris MI, Nguyen MH, Shoham S, Thompson III GR. 2017. A mycoses study group international prospective study of phaeohyphomycosis: an analysis of 99 proven/probable cases. In Open forum infectious diseases. US: Oxford University Press. 4(4):ofx200. https://doi.org/10.1093/ofid/ofx200 | PMid:29766015 PMCid:PMC5946886
Sharma P, Bhalla M, Thami GP, Chander J. 2020. Evaluation of efficacy and safety of oral terbinafine and itraconazole combination therapy in the management of dermatophytosis. Journal of Dermatological Treatment. 31(7):749-53. https://doi.org/10.1080/09546634.2019.1612835 | PMid:31030594
Spear ER. 2017. Phylogenetic relationships and spatial distributions of putative fungal pathogens of seedlings across a rainfall gradient in Panama. Fungal Ecology. 26:65-73. https://doi.org/10.1016/j.funeco.2016.12.004
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