We compared the in vitro activities of tigecycline to those of other agents against 300 nonduplicate isolates of Streptococcus pneumoniae (194 isolates), Haemophilus influenzae (60 isolates), and Moraxella catarrhalis (46 isolates) recovered from patients treated in three major hospitals in Taiwan from August through December, 2003. All of these isolates were inhibited at 0.5 mg/L of tigecycline. For S. pneumoniae isolates, 72% were not susceptible to penicillin (69% intermediate and 3% resistant) and 96% were not susceptible to azithromycin. Among the 178 isolates resistant to azithromycin, 53 isolates (30%) had the M phenotype and 70% had the cMLSB phenotype. The rate of nonsusceptibility to ertapenem, telithromycin, moxifloxacin, and quinupristindalfopristin in S. pneumoniae was 3%, 2%, 1%, and 57%, respectively. For H. influenzae, 36 (60%) were not susceptible to ampicillin, among which 31 possessed beta-lactamase. A high rate (8.3%) of H. influenzae isolates with beta-lactamase-negative and ampicillin-resistant phenotype was found. All H. influenzae isolates were susceptible to azithromycin, but 40% of them were not susceptible to clarithromycin. Ninety-eight percent (44 isolates) of M. catarrhalis possessed beta-lactamase. All three fluoroquinolones tested were highly active (MIC90 < or =0.12 mg/L) against H. influenzae and M. catarrhalis.

译文

:我们比较了替加环素与其他药物对300株肺炎链球菌(194株),流感嗜血杆菌(60株)和卡他莫拉氏菌(46株)的非重复分离株的体外活性,这些菌株从台湾三家主要医院接受治疗的患者中恢复从2003年8月到2003年12月。所有这些分离物的0.5 mg / L替加环素均被抑制。对于肺炎链球菌分离株,72%对青霉素不敏感(69%中度耐药,3%耐药),96%对阿奇霉素不敏感。在对阿奇霉素耐药的178株菌株中,有53株(占30%)具有M表型,而70%则具有cMLSB表型。肺炎链球菌对ertapenem,telithromycin,moxifloxacin和quinupristindalfopristin的不敏感率分别为3%,2%,1%和57%。对于流感嗜血杆菌,有36名(60%)对氨苄西林不敏感,其中31名具有β-内酰胺酶。发现具有β-内酰胺酶阴性和氨苄青霉素抗性表型的流感嗜血杆菌分离株的比率很高(8.3%)。所有流感嗜血杆菌分离株均对阿奇霉素敏感,但其中40%对克拉霉素不敏感。卡他氏菌的百分之九十八(44个分离株)拥有β-内酰胺酶。测试的所有三种氟喹诺酮类药物对流感嗜血杆菌和卡他莫拉氏菌均具有很高的活性(MIC90 <或= 0.12 mg / L)。

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