Mycobacterium sherrisii isolation from a patient with pulmonary disease

Tortoli, Enrico; Mariottini, Alessandro; Mazzarelli, Gianna

doi:10.1016/j.diagmicrobio.2006.06.021

Cited by 15 publications

(27 citation statements)

References 11 publications

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“…M. sherrisii still awaits offi cial recognition (8). Of M. sherrisii infections reported to date (6,(9)(10)(11)(12), most have been in HIV-infected patients from Africa (9-11). Although recommendations for the antimicrobial drug management of these infections have not yet been established, our 2 patients with M. sherrisii disseminated disease responded clinically to the optimization of their antiretrovi- ral therapy regimen and to the combination of ethambutol and azithromycin.…”

Section: Discussionmentioning

confidence: 99%

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Invasive Disease Caused by Nontuberculous Mycobacteria, Tanzania

Crump¹,

Ingen²,

Morrissey³

et al. 2009

Emerg. Infect. Dis.

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Data on nontuberculous mycobacterial (NTM) disease in sub-Saharan Africa are limited. During 2006–2008, we identified 3 HIV-infected patients in northern Tanzania who had invasive NTM; 2 were infected with “ Mycobacterium sherrisii ” and 1 with M. avium complex sequevar MAC-D. Invasive NTM disease is present in HIV-infected patients in sub-Saharan Africa.

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Section: Discussionmentioning

confidence: 99%

“…The ITS sequence was identical to that of M. sherrisii strain FI-95229 (accession no. DQ185132), isolated from sputum of a patient in Italy (6). The Tanzania patient was treated with azithromycin, 500 mg/day, and ethambutol, 800 mg/day.…”

Section: The Studymentioning

confidence: 99%

Invasive Disease Caused by Nontuberculous Mycobacteria, Tanzania

Crump¹,

Ingen²,

Morrissey³

et al. 2009

Emerg. Infect. Dis.

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“…Recently described strains were linked to an African source, as they were isolated from patients who were currently (Crump et al, 2009) (Gämperli et al, 2005;Loulergue et al, 2007;Tortoli et al, 2007a). For two strains isolated in Italy and one in Thailand, no evident link with Africa was detected (Tortoli et al, 2007b;Ballard et al, 2007), while for the five strains of the first report (Selvarangan et al, 2004) one was isolated in Germany and the others in three different states of the USA. From the available literature, 'M.…”

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confidence: 99%

Mycobacterium sherrisii sp. nov., a slow-growing non-chromogenic species

Ingen

Tortoli

Selvarangan

et al. 2011

International Journal of Systematic and Evolutionary Microbiology

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'Mycobacterium sherrisii' is an undescribed species that appears to be emerging, in particular, among HIV-positive patients originating from Africa. To describe 'M. sherrisii', to ensure that the species name is validly published and to define its phylogenetic position, we collected 11 of these strains reported in five previous studies, and subjected them to biochemical identification, cellwall mycolic acid analysis and sequencing of multiple housekeeping genes. The bacteria formed smooth and generally non-chromogenic colonies after 2-3 weeks of subculture at 24-37 6C; photochromogenic and scotochromogenic pigmentation were exhibited by three and two strains, respectively. The strains were positive for the heat-stable catalase test, but negative in tests for hydrolysis of Tween 80, nitrate reduction, b-glucosidase and 3-day arylsulfatase. Mycolic acid patterns, obtained by HPLC, resembled a trimodal profile similar to those of type strains of Mycobacterium simiae, Mycobacterium lentiflavum, Mycobacterium triplex and Mycobacterium genavense. The 16S rRNA gene sequences of the 11 strains differed by 4 bp (99.7 % similarity) from that of the type strain of the closest related species, M. simiae ATCC 25275 T . Levels of internal transcribed spacer (ITS) and partial hsp65 and rpoB gene sequence similarity between the two taxa were 95.8 % (271/283 bp), 97.5 % (391/401 bp) and 95.2 % (700/735 bp), respectively. On the basis of these results, we propose the formal recognition of Mycobacterium sherrisii sp. nov. The type strain is 4773 T (5ATCC BAA-832 T 5DSM 45441 T ).

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“…2 The first strains were isolated from HIVinfected patients born in Africa or who had resided there for a long time before moving to other countries. [3][4][5] New cases appeared later in Italy, 6 Argentina, 7 and recently Singapore, 8 not related to an African source. There are only a few reported cases.…”

Section: Discussionmentioning

confidence: 99%

“…2 Until M. sherrisii was characterized, some of the strains were misdiagnosed as M. simiae or Mycobacterium lentiflavum 5,6,9 and retrospectively identified as M. sherrisii by sequencing techniques. Consequently, any isolation of a non-tuberculous strain identified as M. simiae or other closely related species with commercially available methods should be confirmed by 16S rRNA sequencing.…”

Section: Discussionmentioning

confidence: 99%

Disseminated Infection by Mycobacterium sherrisii and Histoplasma capsulatum in an African HIV-Infected Patient

Tajan¹,

Espasa²,

Sala³

et al. 2013

The American Society of Tropical Medicine and Hygiene

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Abstract. Mycobacterium sherrisii is a new species of opportunistic, slow-growing, non-tuberculous Mycobacterium closely related to Mycobacterium simiae that can currently be identified with the sequence of 16S rARN gene and the heatshock protein 65. Few cases of patients infected by this Mycobacterium have been reported and all of them were associated with human immunodeficiency virus or other immunosuppressive conditions. Clinical management is complex, because there is not a clear correlation between the in vitro antibiotic susceptibility testing and the patient's clinical outcome.

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Mycobacterium sherrisii isolation from a patient with pulmonary disease

Cited by 15 publications

References 11 publications

Invasive Disease Caused by Nontuberculous Mycobacteria, Tanzania

Invasive Disease Caused by Nontuberculous Mycobacteria, Tanzania

Mycobacterium sherrisii sp. nov., a slow-growing non-chromogenic species

Disseminated Infection by Mycobacterium sherrisii and Histoplasma capsulatum in an African HIV-Infected Patient

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