. 2011 Sep;55(9):4211–4217. doi: 10.1128/AAC.00561-11

Table 2.

Resistance phenotype characterization and FIC/FBC index values of NB-003–BPO against P. acnes isolates

Strain no.	Resistance phenotype^a	Average synergy indices^b
Strain no.	Resistance phenotype^a	FIC	FBC
PAC-001	Ery^s Cli^s Tet^s (ATCC6919)	0.4	0.2
PAC-003	Ery^s Cli^s Tet^s (ATCC11828)	0.4	0.4
PAC-004	Ery^s Cli^s Tet^s	0.6	0.5
PAC-005	Ery^s Cli^r Tet^s (unknown)	0.4	0.7
PAC-006	Ery^r Cli^r Tet^r (G2057A + G1058C)	0.5	0.3
PAC-007	Ery^r Cli^r Tet^r (A2058G + G1058C)	0.4	0.3
PAC-008	Ery^r Cli^r Tet^r (A2058G + G1058C)	0.4	0.4
PAC-009	Ery^r Cli^r Tet^s (A2059G)	0.5	0.6
PAC-010	Ery^r Cli^r Tet^r (A2059G + G1058C)	0.5	0.4
PAC-011	Ery^r Cli^r Tet^s (ermX)	0.4	0.4
PAC-002	Ery^s Cli^s Tet^s (ATCC11827)	NA	NA
PAC-012	Ery^s Cli^s Tet^r (G1058C)	NA	NA
PAC-013	Ery^r Cli^r Tet^r (unknown)	NA	NA
PAC-014	Ery^r Cli^r Tet^r (ermX)	NA	NA
PAC-015	Ery^r Cli^r Tet^s (G2057A)	NA	NA
PAC-016	Ery^r Cli^r Tet^s (A2058G)	NA	NA

Ery^s/r, erythromycin susceptible/resistant; Cli^s/r, clindamycin susceptible/resistant; Tet^s/r, tetracycline susceptible/resistant. The resistance breakpoints are erythromycin, ≥0.5 μg/ml; clindamycin, ≥0.25 μg/ml; tetracycline, ≥2 μg/ml. Unknown, the genetic basis of antibiotic resistance is unknown.

NA, not tested in synergy study.