Determination of trimethoprim-sulfamethoxazole resistance in Streptococcus pneumoniae by using the E test with Mueller-Hinton agar supplemented with sheep or horse blood may be unreliable

被引：10

作者：

Lovgren, M

Dell'Acqua, L

Palacio, R

Echániz-Aviles, G

Soto-Noguerón, A

Castaneda, E

Agudelo, CI

Heitmann, I

Brandileone, MC

Zanella, RC

Rossi, A

Pace, J

Talbot, JA

机构：

[1] Natl Ctr Streptococcus, Edmonton, AB, Canada

[2] Minsisterio Salud Publ, Dept Lab Salud, Montevideo, Uruguay

[3] Inst Nacl Salud Publ, Cuernavaca, Morelos, Mexico

[4] Inst Nacl Salud, Bogota, Colombia

[5] Inst Salud Publ, Santiago, Chile

[6] Inst Adolfo Lutz, Sao Paulo, Brazil

[7] Inst Nacl Microbiol Dr Carlos Malbran, Buenos Aires, DF, Argentina

来源：

JOURNAL OF CLINICAL MICROBIOLOGY | 1999年 / 37卷 / 01期

关键词：

D O I：

10.1128/JCM.37.1.215-217.1999

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

An international, multicenter study compared trimethoprim-sulfamethoxazole MICs for 743 Streptococcus pneumoniae isolates (107 to 244 isolates per country) by E test, using Mueller-Hinton agar supplemented with 5% defibrinated horse blood or 5% defibrinated sheep blood, with MICs determined by the National Committee for Clinical Laboratory Standards broth microdilution reference method. Agreement within 1 log(2) dilution and minor error rates were 69.3 and 15.5%, respectively, on sheep blood-supplemented agar and 76.9 and 13.6%, respectively, with horse blood as the supplement. Significant interlaboratory variability was observed. E test may not be a reliable method for determining the resistance of pneumococci to trimethoprim-sulfamethoxazole.

引用

页码：215 / 217

页数：3

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