Comparison of sensititre dried microtitration trays with a standard agar method for determination of minimum inhibitory concentrations of antimicrobial agents.

Antimicrobial Agents and Chemotherapy
D S ReevesJ M Broughall

Abstract

A total of 222 clinical isolates were used to test the accuracy of Sensititre dried microtitration trays for determining minimum inhibitory concentrations (MICs) of antimicrobial agents. In comparison with an agar dilution technique, 89.5% of all the pairs of results were within one doubling dilution. The 2,420 pairs of MIC results with finite values gave a corresponding figure of 86.8%. Exclusion of sulfisoxazole results, which demonstrated a significant interlaboratory variation in accuracy, raised this value to 89.1%. Very good differentiation of beta-lactamase-producing strains of Staphylococcus aureus (24 of 24 giving an MIC greater than or equal to 0.25 micrograms/ml) and Haemophilus influenzae (3 of 3 giving an MIC greater than or equal to 32 micrograms/ml) was obtained with the Sensititre system. This method also clearly distinguished erythromycin-resistant S. aureus strains (7 of 7 giving an MIC greater than 32 micrograms/ml) from the susceptible strains (26 of 28 giving an MIC less than or equal to 0.5 microgram/ml plus 1 strain at 1.0 microgram/ml and 1 at 2.0 micrograms/ml). Sensititre offers an accurate and convenient method of determining MICs comparable to those obtained with the agar dilution procedure, with the...Continue Reading

References

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Citations

Jul 28, 2010·Archives of Pharmacal Research·Ibrahim A AlsarraSteven H Neau
Jun 15, 2011·Antimicrobial Agents and Chemotherapy·Wang HengzhuangNiels Høiby
Nov 1, 1981·Antimicrobial Agents and Chemotherapy·R LüthyW Siegenthaler
Feb 1, 1982·Antimicrobial Agents and Chemotherapy·G E Buck, M T Kelly
May 8, 2003·Journal of Clinical Microbiology·Kimberle C Chapin, Michael C Musgnug
Sep 16, 2005·Journal of Infection and Chemotherapy : Official Journal of the Japan Society of Chemotherapy·Shigeaki YokoiHideto Fukushi
Oct 1, 1993·Journal of Veterinary Diagnostic Investigation : Official Publication of the American Association of Veterinary Laboratory Diagnosticians, Inc·G E BurrowsW H Fales
Jun 1, 1986·Acta Pathologica, Microbiologica, Et Immunologica Scandinavica. Section B, Microbiology·P HuovinenP Toivanen
Jul 1, 1984·Journal of Clinical Microbiology·P HuovinenP Toivanen

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