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Journal of Clinical Microbiology, June 2009, p. 1947-1949, Vol. 47, No. 6
0095-1137/09/$08.00+0     doi:10.1128/JCM.02449-08
Copyright © 2009, American Society for Microbiology. All Rights Reserved.

Pulmonary Disease Due to Mycobacterium arosiense, an Easily Misidentified Pathogenic Novel Mycobacterium{triangledown}

Enrico Tortoli,1* Beatrice Adriani,2 Serena Baruzzo,1 Roberto Degl'Innocenti,3 Irene Galanti,4 Stefania Lauria,1 Alessandro Mariottini,5 and Michela Pascarella6

Regional Reference Center for Mycobacteria, Careggi Hospital, 50134 Florence, Italy,1 Infectious Diseases Unit, Misericordia e Dolce Hospital, 59100 Prato, Italy,2 Clinical Laboratory, Misericordia e Dolce Hospital, 59100 Prato, Italy,3 Microbiology Laboratory, San Donato Hospital, 52100 Arezzo, Italy,4 Genetic Diagnostics Unit, Careggi Hospital, 50134 Florence, Italy,5 Microbiology Laboratory, San Bortolo Hospital, 36100 Vicenza, Italy6

Received 20 December 2008/ Returned for modification 22 February 2009/ Accepted 14 April 2009

Mycobacterium arosiense is a newly described species. After noticing it was misidentified as Mycobacterium intracellulare by the commercial identification system GenoType CM (Hein, Nehren, Germany), we detected 4 such strains among 33 that were previously misidentified as M. intracellulare. Three more strains were found among unidentified mycobacteria not tested previously with GenoType. The first case of pulmonary disease due to M. arosiense is reported here, and the novel species, of which so far only one strain had been investigated, is further characterized.

* Corresponding author. Mailing address: Regional Reference Center for Mycobacteria, Piastra dei Servizi, A. O. U. Careggi, viale Morgagni 85, 50134 Florence, Italy. Phone: 39 0557949199. Fax: 39 0557949010. E-mail: e.tortoli{at}libero.it

{triangledown} Published ahead of print on 22 April 2009.

Journal of Clinical Microbiology, June 2009, p. 1947-1949, Vol. 47, No. 6
0095-1137/09/$08.00+0     doi:10.1128/JCM.02449-08
Copyright © 2009, American Society for Microbiology. All Rights Reserved.





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