Table 2.

Growth rates and antibiotic susceptibility patterns of Gordonia spp. isolated from blood, 1999 to 2013

Isolate no.	Yr of isolation	Source	Species	Time to positivity	MIC, μg/ml (susceptibility)a
					Amoxicillin-clavulanate	Cefepime	Ceftriaxone	Imipenem	Ciprofloxacin	Moxifloxacin	Clarithromycin	Amikacin	Tobramycin	Doxycycline	Minocycline	TMP-SMXb	Linezolid
1	2013	Line	G. otitidis	20 h	≤2/1 (S)	4 (S)	4 (S)	≤2 (S)	≤0.12 (S)	<0.25(S)	0.5 (S)	≤1 (S)	2 (S)	0.5 (S)	≤1 (S)	≤0.25/4.75 (S)	4 (S)
2	2012	Line	G. polyisoprenivorans	32 h	8/4 (S)	4 (S)	8 (S)	≤2 (S)	0.5 (S)	≤0.25 (S)	16 (R)	2 (S)	2 (S)	1 (S)	4 (I)	≤0.25/4.75 (S)	4 (S)
3	2011	Peripheral blood	G. terrae	4 days	≤1/0.5 (S)	NDc	2 (S)	≤0.25 (S)	≤0.12 (S)	≤0.12 (S)	≤0.25 (S)	≤0.5 (S)	0.5 (S)	ND	≤1 (S)	16 (S) (sulfamethoxazole)	1 (S)
4	2010	Peripheral blood	G. bronchialis	6 days	≤1/0.5 (S)	ND	4 (S)	≤0.25 (S)	0.25 (S)	≤0.12 (S)	2 (S)	≤0.5 (S)	≤0.25 (S)	ND	≤1 (S)	ND	1 (S)
5	1999	Line	ND	24–48 h	ND	ND	ND	4 (S)	1 (S)	ND	ND	8 (S)	ND	ND	4 (I)	>2/38 (R)	ND

^aS, susceptible; I, intermediate; R, resistant.

^bTMP-SMX, trimethoprim-sulfamethoxazole.

^cND, not determined.