Comparing the disk-diffusion and agar dilution tests for Neisseria gonorrhoeae antimicrobial susceptibility testing

Agar dilution method for susceptibility testing of Neisseria gonorrhoeae.

The antibiotic susceptibilities of Neisseria gonorrhoeae isolates obtained from patients attending a clinic for sexually transmitted diseases in Tucumán, Argentina, were determined by the agar dilution method (MIC). 3.5% of the isolates produced beta-lactamase. A total of 96.5% of beta-lactamase negative isolates tested were susceptible to penicillin (MIC < or = 2 micrograms/ml-1); 14.03% of th...

Agar Gradient Diffusion Susceptibility Testing for Neisseria gonorrhoeae: A Reliable Alternative to Agar Dilution?

In vitro comparison of disk diffusion and agar dilution antibiotic susceptibility test methods for Neisseria gonorrhoeae.

At present, most Neisseria gonorrhoeae testing is done with beta-lactamase and agar dilution tests with common therapeutic agents. Generally, in bacteriological diagnosis laboratories in Argentina, study of antibiotic susceptibility of N. gonorrhoeae is based on beta-lactamase determination and agar dilution method with common therapeutic agents. The National Committee for Clinical Laboratory S...

Assessment of Etest as an alternative to agar dilution for antimicrobial susceptibility testing of Neisseria gonorrhoeae.

We studied whether the Etest can be used as an alternative to agar dilution to determine antimicrobial susceptibilities of ceftriaxone, cefixime, and cefpodoxime in Neisseria gonorrhoeae surveillance. One hundred fifteen clinical and laboratory isolates of N. gonorrhoeae were tested following the Clinical Laboratory Improvement Amendments (CLIA)-approved CLSI standard agar dilution method and, ...

Comparison of Disk Diffusion, Agar Dilution, and Broth Microdilution for Antimicrobial Susceptibility Testing of Five Chitosans

ii Acknowledgements I would like to express my deep appreciation to my advisors Drs. Beilei Ge and Witoon Prinyawiwatkul, for their support, encouragement, and helpful guidance throughout my M. S. study. Their intelligence, enthusiasm, inspiration and academic perspectives impressed me immensely. Also I want to thank Dr. Zhimin Xu, as my committee member, who gave me valuable suggestions and su...