Methods for predicting susceptibility of Streptococcus pneumoniae to cefixime

Abstract

Among 698 Streptococcus pneumoniae isolates, 475 were penicillin susceptible and >99% of those were susceptible to 0.5 μg of cefixime per ml; other pneumococci were tentatively assumed to be resistant to cefixime. A 1- μg oxacillin disk was more reliable than a 5-μg cefixime disk for predicting susceptibility to cefixime.