Antibiogram (EUCAST / BrCAST)

Disk diffusion zone interpreter using EUCAST clinical breakpoints (BrCAST Brazilian edition). Select the bacterial group and enter the measured diameters.

EUCAST Clinical Breakpoint Tables v16.1 (2026 edition), with the Brazilian BrCAST translation

Isolate group

E. coli, Klebsiella spp., Proteus, Enterobacter, Serratia, Citrobacter, Salmonella and Shigella.

Mueller-Hinton • 0.5 McFarland inoculum • 35 ± 1 °C, ambient air, 18 ± 2 h

Zones for tested batch

0 of 18 discs filled

Fill in only the discs you placed on the plate. Accepted values: 6 to 60 mm.

Penicillins

AmpicillinDisc 10 µgmmAmpicillin-sulbactamDisc 10-10 µgmmAmoxicillin-clavulanateDisc 20-10 µgmmPiperacillin-tazobactamDisc 30-6 µgmm

Cephalosporins

CeftriaxoneDisc 30 µgmmCefotaximeDisc 5 µgmmCeftazidimeDisc 10 µgmmCefepimeDisc 30 µgmm

Carbapenems

ErtapenemDisc 10 µgmmImipenemDisc 10 µgmmMeropenemDisc 10 µgmm

Fluoroquinolones and aminoglycosides

CiprofloxacinDisc 5 µgmmLevofloxacinDisc 5 µgmmAmikacinDisc 30 µgmmGentamicinDisc 10 µgmm

Urinary agents

Sulfamethoxazole-trimethoprimDisc 23,75-1,25 µgmmNitrofurantoinDisc 100 µgmmOral fosfomycinDisc 200 µgmm

References

Breakpoints and resistance phenotypes are based on the official documents:

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