Predictive Information for Streptococcus pneumoniae Susceptibility Tests

Penicillin susceptibility data may be used to predict susceptibility to the following antimicrobials:

For NON-MENINGEAL pneumococcal isolates, penicillin susceptible by screen or penicillin MICs of <=0.06 predict susceptibility to: ampicillin (oral or parenteral), ampicillin-sulbactam, amoxicillin, amoxicillin-clavulanic acid, cefaclor, cefdinir,cefditoren, cefepime, cefotaxime, cefpodoxime, cefprozil,  ceftaroline, ceftizoxime, cefuroxime, doripenem, ertapenem, imipenem, loracarbef and meropenem.

For additional information, please contact the Clinical Microbiology Laboratory at 984-974-1805.


Clinical and Laboratory Standards Institute. Performance Standards for Antimicrobial Susceptibility Testing; Nineteenth Informational Supplement. CLSI Document M100-S23. CLSI, Wayne, PA, 19087, USA, 2013

Reviewed by Christopher Parker on December 08, 2021

Note: Reference ranges provided on this web site are for guidance only, and may not reflect the most recent changes. Refer to laboratory reports for current reference data.

UNC Hospitals
McLendon Clinical Laboratories
101 Manning Drive
Chapel Hill, NC 27514