measurement of minimum inhibitory concentrations ( mics ) of antibiotics for the strains showed that they were all susceptible in vitro to spectinomycin ( mic less than or equal to 32 mg/l ) , enoxacin ( mic less than or equal to 0.25 mg/l ) , cefotaxime , ciprofloxacin , and ceftriaxone ( mics less than or equal to 0.064 mg/l ) , whereas about half showed some resistance to tetracycline or cefotiam , or both .
C0007554
cefotaxime
C0007561
ceftriaxone