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Medicina (Buenos Aires)

Print version ISSN 0025-7680


BARRERA, Lucía  and  GRUPO DE INVESTIGACION DE M. SIMIAE et al. Disease due to Mycobacterium simiae and "Mycobacterium sherrisii" in Argentina. Medicina (B. Aires) [online]. 2010, vol.70, n.4, pp.343-346. ISSN 0025-7680.

A revision of mycobacterial disease due to M simiae (n = 4) and "M. sherrisii" (n = 6) identified during an eight-year period is presented. Cases occurred among patients with AIDS (n = 6), previous history of silicosis (n = 2) or tuberculosis (n = 2). One case was lost to follow-up and the remaining nine responded poorly to chemotherapy based on clarithromycin, ethambutol and fluoroquinolones. Five patients died of whom four were HIV-positive, three remained chronic and one was cured. These microorganisms originated 2.1% of mycobacterioses cases detected in an eight-year period. Timely identification of this group of uncommon mycobacteria by molecular methods seems to be clinically relevant in order to warn of difficulties inherent to the treatment. However, the distinction between both closely related microorganisms might not be crucial for case management as no distinctive characteristics were evident among patients affected by M. simiae or "M. sherrisii".

Keywords : Mycobacterium simiae; "Mycobacterium sherrisii"; Mycobacterial disease.

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