SXT (sulfamethoxazole-trimethoprim) susceptibility testing differentiates group A and B streptococci from other hemolytic streptococci. Group A and B streptococci are SXT resistant, whereas other...
Tag: Antimicrobial susceptibility testing
ESKAPE is the acronym for six nosocomial pathogens that can ‘escape’ commonly used antibiotics due to their increasing multi-drug resistance (MDR). These pathogens are; Enterococcus faecium,...
Quality control strains (standard strains) are well-characterized microorganisms with defined susceptibility or resistance profiles to the antimicrobial agent(s) tested. They are routinely used to...
The enzyme carbapenemase can be detected by various phenotypic and molecular methods. Phenotypic methods for carbapenemases detection are preferred over molecular techniques because they are rapid,...
Minimum Inhibitory Concentration (MIC) and Minimum Bactericidal Concentration (MBC)
Minimum Inhibitory Concentration (MIC) Minimum Inhibitory Concentration (MIC) is the lowest concentration (expressed as mg/L or μg/μL) of an antimicrobial agent that inhibits the visible...
McFarland turbidity standards are prepared by mixing various volumes of 1% sulfuric acid and 1% barium chloride to obtain solutions with specific optical densities. 0.5 McFarland turbidity...
