Table 5.

Effect of DD28-Kanamycin, DD28-Erythromycin, DD93-Kanamycin, and DD93-Kanamycin combination against MRSA-S1.

Combination	0 h	3 h	6 h	9 h	24 h
Control	5.41 ± 0.08	6.64 ± 0.15	7.52 ± 0.26	8.12 ± 0.12	6.54 ± 0.16
DD28-Kanamycin (50-4 mg/l)	5.52 ± 0.14	2.45 ± 0.26	2.52 ± 0.15	2.47 ± 0.12	2.33 ± 0.20
DD28-Erythromycin (50-1 mg/l)	5.6 ± 0.26	2.58 ± 0.05	2.53 ± 0.07	2.65 ± 0.32	2.49 ± 0.24
DD93-Kanamycin (50-4 mg/l)	5.42 ± 0.03	2.41 ± 0.08	2.43 ± 0.22	2.38 ± 0.05	2.34 ± 0.23
DD93-Erythromycin (50-1 mg/l)	5.55 ± 0.07	2.50 ± 0.2	2.54 ± 0.13	2.40 ± 0.07	2.54 ± 0.22

Log₁₀ colony count lower than that at time Zero without antimicrobial agent (control). -1 = Δ 1 Log₁₀ CFU/ml = 90% killing; -2 = Δ 2 Log₁₀ CFU/ml = 99% killing; -3 = Δ 3 Log₁₀ CFU/ml = 99.9% killing.