Barry A L, Brown S D, Novick W J
Clinical Microbiology Institute, Tualatin, Oregon 97062, USA.
Antimicrob Agents Chemother. 1995 Oct;39(10):2193-6. doi: 10.1128/AAC.39.10.2193.
The in vitro activities of four extended-spectrum cephalosporins and benzyl penicillin were evaluated against 698 clinical isolates of Streptococcus pneumoniae, including 130 (19%) penicillin-intermediate and 84 (12%) penicillin-resistant strains. Cefotaxime and ceftriaxone were essentially identical in their antipneumococcal activities: both were active against penicillin-susceptible strains and most penicillin-intermediate strains. Cefpirome was twice as potent as cefotaxime and ceftriaxone against penicillin-resistant strains. Ceftazidime was 8- to 16-fold less active than cefotaxime and ceftriaxone against S. pneumoniae in vitro, and thus, its spectrum included only penicillin-susceptible strains.
评估了四种广谱头孢菌素和苄青霉素对698株肺炎链球菌临床分离株的体外活性,其中包括130株(19%)青霉素中介株和84株(12%)耐青霉素株。头孢噻肟和头孢曲松的抗肺炎球菌活性基本相同:两者对青霉素敏感株和大多数青霉素中介株均有活性。头孢匹罗对耐青霉素株的活性是头孢噻肟和头孢曲松的两倍。在体外,头孢他啶对肺炎链球菌的活性比头孢噻肟和头孢曲松低8至16倍,因此,其抗菌谱仅包括青霉素敏感株。