Skip to main content
. 2020 Dec 3;10:21066. doi: 10.1038/s41598-020-78121-8

Table 3.

Alteration in MIC of several antibiotics against Staphylococcus aureus ST692 and ST692 stressed on ampicillin.

Class Antibiotics MIC (μg/mL) Fold increase in MIC (stress/normal)
Normal ST692 Stressed ST692
β-Lactams Ampicillin 256 1024 4
Amoxicillin 256 1024 4
Cefalexin 32 64 2
Cefazolin 32 64 2
Cefoperazone 64 128 2
Cefotaxime 32 32 1
Cloxacillin  < 0.5 1 a
Imipenem  > 1024  > 1024 a
Methicillin 32 32 1
Chloramphenicol Chloramphenicol 16 16 1
Aminoglycosides Gentamicin 4 4 1
Kanamycin 32 32 1
Streptomycin  > 1024  > 1024 a
Tetracyclines Tetracycline 64 64 1

MIC minimum inhibitory concentration.

aIndicates not exactly known because the range of MIC is greater than the maximum value or less than a minimum value.