Penicillin-resistant S. pneumoniae tend to be resistant to other ?-lactams
Goldstein et al. J Antimicrob Chemother 1996;38(Suppl. A):71–84
MIC distribution for ceftriaxone against S. pneumoniae
MIC (mg/L)
0
10
20
30
40
50
60
70
80
0.008
0.015
0.03
0.06
0.12
0.25
0.5
1
2
4
8
0.004
% isolates
Penicillin-sensitive
(MIC ?0.06 mg/L)
Penicillin-intermediate
(MIC 0.12–1 mg/L)
Penicillin-resistant
(MIC ?2 mg/L)
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