Vol 7: Isolation and characterization of non tuberculous mycobacteria from humans and animals in Namwala District of Zambia.Reportar como inadecuado



 Vol 7: Isolation and characterization of non tuberculous mycobacteria from humans and animals in Namwala District of Zambia.


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This article is from BMC Research Notes, volume 7.AbstractBackground: The genus Mycobacterium contains more than 100 species, most of which are classified as non-tuberculous mycobacteria NTM. In Zambia, the NTM are slowly becoming recognized as pathogens of major public health significance with the advent of Human Immunodeficiency Virus HIV and Acquired Immunodeficiency Syndrome AIDS. This study aimed at reporting the isolated NTM and ascertains their zoonotic potential and diagnostic significance in Zambia. Method: A total of 100 sputum samples were collected from three health facilities from suspected pulmonary tuberculosis human patients. In addition, 67 lymph node tissue samples from cattle and 14 from Kafue lechwe Kobus leche kafuensis showing tuberculosis-like lesions were collected. The samples were appropriately decontaminated and cultured on Middlebrook 7H10 and Stone brink. The isolates were then identified accordingly using the 16S ribosomal RNA analysis method. Results: A total of 8 NTM were isolated from human sputum, 12 from cattle and 1 from the Kafue lechwe. The identified NTM included M. intracellulae, M. abscess, M. chimaera, M. bolleti, M. fortuitum and M. stomatopae sp. Nov. Conclusion: The isolation of NTM from humans and animals at the interface in Namwala district has highlighted the clinical significance and diagnostic challenge. The epidemiological investigation of NTM in the study area is therefore recommended. This should include sampling from environmental sources such as water and soil.



Autor: Malama, Sydney; Munyeme, Musso; Mwanza, Sydney; Muma, John Bwalya

Fuente: https://archive.org/



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