Table 1.

Comparison of the Vitek 2 ANC card with 16S rRNA gene sequencing as a reference for the identification of 201 clinical isolates of species included in the database

Reference organism (total no. of isolates)	No. (%) of isolates
	Correct identification to the species level	Correct identification to the genus level	Low discrimination	No identification	Misidentification at the species level
Gram-negative strains (95)
Bacteroides fragilis sp. (76)	68 (89.5)	75 (98.7)	1	0	9
B. fragilis (42)	38 (90.5)	41 (97.6)	0	0	4
B. uniformis (4)	2	4	0	0	2
B. ovatus (8)	8	8	0	0	0
B. vulgatus (5)	5	5	0	0	0
B. thetaiotaomicron (16)	14 (87.5)	16 (100.0)	1	0	3
B. caccae (1)	1	1	0	0	0
Parabacteroides sp. (4)	3	3	0	1	1
P. distasonis (4)	3	3	0	1	1
Campylobacter sp. (2)	1	1	0	1	1
C. ureolyticus (2)	1	1	0	1	1
Prevotella sp. (6)	5	6	0	0	1
P. buccae (2)	1	2	0	0	1
P. disiens (1)	1	1	0	0	0
P. bivia (1)	1	1	0	0	0
P. melaninogenica (2)	2	2	0	0	0
Fusobacterium sp. (7)	5	7	1	0	2
F. nucleatum (4)	4	4	0	0	0
F. necrophorum (2)	1	2	1	0	1
Fusobacterium sp. (1)	0	1	0	0	1
Gram-positive strains (106)
Gram-positive anaerobic cocci (55)	54 (98.2)	54 (98.2)	1	1	1
Finegoldia magna (33)	33 (100.0)	33 (100.0)	0	0	0
Parvimonas micra (18)	17 (94.4)	17 (94.4)	1	1	1
Peptostreptococcus anaerobius (4)	4	4	0	0	0
Propionibacterium sp. (16)	13 (81.3)	13 (81.3)	3	0	3
P. acnes (15)	13 (86.7)	13 (86.7)	3	0	2
P. granulosum (1)	0	0	0	0	1
Actinomyces sp. (5)	3	3	0	1	2
A. meyeri (1)	1	1	0	0	0
A. israelii (3)	2	2	0	1	1
A. naeslundii (1)	0	0	0	0	1
Clostridium sp. (27)	27 (100.0)	27 (100.0)	7	0	0
C. difficile (15)	15 (100.0)	15 (100.0)	3	0	0
C. perfringens (7)	7	7	0	0	0
C. septicum (1)	1	1	0	0	0
C. baratii (1)	1	1	1	0	0
C. butyricum (3)	3	3	3	0	0
Eggerthella sp. (2)	2	2	0	0	0
E. lenta (2)	2	2	0	0	0
Bifidobacterium sp. (1)	0	1	0	0	0