From: Effect of Ampicillin on the kinetics of colonization of Streptococcus pneumoniae and Lactobacillus fermentum in the respiratory tract of mice
Antibiotic
MIC (ug/ml) Break point
Sensitive
Results (ug/ml)
Penicillin
-
≤0.12
≤0.02
Ampicillin
≤0.25
≤0.10
Ceftriazone
≥2
≤0.50
Claritromicin
≥1