TABLE 1.

Antibiotic class designations and MICs against E. coli

Antibiotic class and name	MIC, in mg/liter (μM)
Protein synthesis inhibition (PROT)
Gentamicin (GE)	1.91 (4)
Streptomycin (ST)	5.83 (4)
Clindamycin (CL)	118.13 (256)
Chloramphenicol (CH)	5.17 (16)
Kanamycin (KA)	9.32 (16)
Tetracycline (TT)	0.89 (2)
Cell wall synthesis inhibition (CW)
Ampicillin (AM)	2.97 (8)
Amoxicillin (AX)	2.92 (8)
Cefotaxime (CF)	0.06 (0.125)
DNA synthesis inhibition (DNA)
Trimethoprim (TR)	1.16 (4)
Nalidixic acid (NX)	1.86 (8)
Ciprofloxacin (CI)	<0.005 (<0.015)
RNA synthesis inhibition (RNA)
Rifampin (RI)	13.17 (16)
Rifapentine (RP)	22.95 (32)
Rifaximin (RX)	12.57 (16)
No antibiotic treatment (control)
None	None