S. aureus VA 30 - - ≥7 VA Etest 4-8 ≤2 ≥16 CoNS VA Etest 8-16 ≤4 ≥32 Streptococcus pneumoniae Drug Details Zone diameter (mm) Comment Code µg S I R Plate 1 Chloramphenicol C 30 - ≥21 ≤20 Clindamycin DA 2 16-18 Do not report ≥19 ≤15 Erythromycin E 15 16-20 ≥21 ≤15 Oxacillin OX 1 - - See below ≥20 Co-trimoxazole SXT 25 16-18 ≥19 ≤15 Tetracycline TE 30 25-27 Do not report ≥28 ≤24 Plate 2 Only set up PG and TX Etests if oxacillin zone <20mm (can put both on same agar plate) Drug Details MIC (µg/ml) Comment Code µg S I R Ceftriaxone Meningitis TX Etest 1 ≤0.5 ≥2 Non-meningitis TX 2 ≤1 ≥4 Penicillin Meningitis PG - ≤0.06 ≥0.12 Non-meningitis PG Etest 4 ≤2 ≥8
S. aureus VA 30 ≥7 - - VA Etest ≤2 4-8 ≥16 CoNS VA Etest ≤4 8-16 ≥32 Streptococcus pneumoniae Drug Details Zone diameter (mm) Comment Code µg S I R Plate 1 Chloramphenicol C 30 ≥21 - ≤20 Clindamycin DA 2 ≥19 16-18 ≤15 Do not report Erythromycin E 15 ≥21 16-20 ≤15 Oxacillin OX 1 ≥20 - - See below Co-trimoxazole SXT 25 ≥19 16-18 ≤15 Tetracycline TE 30 ≥28 25-27 ≤24 Do not report Plate 2 Only set up PG and TX Etests if oxacillin zone <20mm (can put both on same agar plate) Drug Details MIC (µg/ml) Comment Code µg S I R Ceftriaxone Meningitis TX Etest ≤0.5 1 ≥2 Non-meningitis TX ≤1 2 ≥4 Penicillin Meningitis PG ≤0.06 - ≥0.12 Non-meningitis PG Etest ≤2 4 ≥8
Antimicrobial_Sensitivity_Disk_Difussion.docx