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Category: Bacterial Pathogenesis; Clinical Microbiology
Mycobacterium kansasii, Page 1 of 2
< Previous page | Next page > /docserver/preview/fulltext/10.1128/9781555819866/9781555819859_Chap42-1.gif /docserver/preview/fulltext/10.1128/9781555819866/9781555819859_Chap42-2.gifAbstract:
Mycobacterium kansasii was first isolated in 1953 ( 1 ). The species was initially characterized by the formation of yellow colonies when exposed to light, a phenomenon resulting from the deposition of beta carotene and later termed photochromogenicity ( 2 , 3 ). In his classification of atypical mycobacteria, Runyon divided nontuberculous mycobacteria into four groups based on growth rate and pigmentation. M. kansasii was classified into group I, along with other photochromogens such as M. marinum ( 3 ).
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This Ziehl-Neelsen-stained photomicrograph of an unknown species demonstrates the cross-barred pattern that is also typically exhibited in Mycobacterium kansasii. Image courtesy of the CDC-Public Health Image Library/Ronald W. Smithwick (ID#14600).
This Ziehl-Neelsen-stained photomicrograph of an unknown species demonstrates the cross-barred pattern that is also typically exhibited in Mycobacterium kansasii. Image courtesy of the CDC-Public Health Image Library/Ronald W. Smithwick (ID#14600).
ATS/IDSA-recommended regimens
ATS/IDSA-recommended regimens
Duration of therapy and relapse rate in patients completing rifampin-containing regimens
Duration of therapy and relapse rate in patients completing rifampin-containing regimens