Table 2.

Identification results of mycobacterial isolates by Bruker Biotyper system (n = 102)

Mycobacterium sp.	No. of isolates	MALDI-TOF MS Biotyper results (no. [%])a
		Unreliable ID		Genus-level ID only	Species-level ID
		No ID generated	Incorrect ID (ID generated)
M. avium complexb	10	0	0	3 (30)	7 (70)
M. arupense	2	0	0	0	2 (100)
M. abscessus	18	0	0	3 (16.7)	15 (83.3)
M. chelonae	1	0	0	0 (0)	1 (100)
M. fortuitum	6	0	0	0	6 (100)
M. gordonae	9	0	0	0	9 (100)
M. gastri/kansasii	20	0	0	9 (45)	11 (55)
M. lentiflavum	4	0	0	0	4 (100)
M. marinum	4	0	0	1 (25)	3 (75)
M. mucogenicum	1	0	0	1 (100)	0
M. neoaurum	3	0	0	1 (33.3)	2 (66.7)
M. nebraskensec	1	0	1 (100) (M. avium)	0	0
M. novocastrense	1	0	1 (100) (M. austroafricanum)	0	0
M. paraffinicumc	4	1 (25)	3 (75) (M. bovis BCG, M. avium, M. intracellulare)	0	0
M. parascrofulaceum	8	1 (12.5)	3 (37.5) (M. avium, M. scrofulaceum)	4 (50)	0
M. scrofulaceum	1	0	0	1 (100)	0
M. simiae	2	2 (100)	0	0	0
M. szulgai	1	0	0	1 (100)	0
M. tuberculosis complexd	4	0	0	0	4 (100)
M. tusciaec	1	0	1 (100) (M. vaccae)	0	0
M. xenopi	1	0	0	0	1 (100)
Total	102	4 (3.9)	9 (8.8)	25 (24.5)	64 (62.8)

^aID, identification.

^bMycobacterium avium complex includes M. avium, M. intracellulare, M. chimaera, M. colombiense, M. vulneris, M. marseillense, M. bouchedurhonense, and M. timonense.

^cSpecies not included in the database.

^dM. tuberculosis complex includes M. tuberculosis, M. bovis, M. bovis BCG, M. africanum, M. microti, M. canettii, and M. pinnipedii.