TABLE I (continued)

B. Bacterial Species Isolated Using R2A Agar

	Before/After Disinfection	NTM	Methylobacterium sp.	Sphingomonas sp.	Ralstonia sp.	Herbaspirillum sp.	Rothia Mucilaginosa	GNR
2008 Aug	Bacterial culture was not performed using R2A in 2008 Aug.
2009 Mar	Before	60	0	40	27	0	0	0
2009 Mar	After	0	0	5	0	0	0	0
2009 Jul	Before	0	0	37	0	105	0	0
2009 Jul	After	0	21	102	0	178	0	0
2010 Feb	Before	11	0	0	0	0	43	0
2010 Feb	After	3	0	0	0	0	12	0
2010 Aug	Bacterial culture was not performed using R2A in 2010 Aug.
2011 Mar	Before	0	0	85	9	0	0	0
2011 Mar	After	0	0	16	29	0	0	48
2011 Jul	Before	0	0	73	0	0	0	320
2011 Jul	After	0	0	0	34	0	0	260
2012 Mar	Before	0	0	38	79	0	0	0
2012 Jul	Before	0	0	130	94	0	0	3.4 × 10³

NTM, Nontuberculous mycobacteria; GNR, unidentifiable Gram-negative rods (CFU/100mL).