ETEST Benzyl Penicillin PG256 FOAM packaging, Product Name: Etest Benzylpenicillin PG 0.016-256 (high). ETEST is a quantitative technique for determining the antimicrobial susceptibility of Gram-negative and Gram-positive aerobic bacteria such as Enterobacteriaceae, Pseudomonas, Staphylococcus and Enterococcus species and fastidious bacteria, such as anaerobes, N. gonorrhoeae, S. pneumoniae, Streptococcus and Haemophilus species. The system comprises a predefined antibiotic gradient which is used to determine the Minimum Inhibitory Concentration (MIC), in ¿g/mL, of different antimicrobial agents against microorganisms as tested on agar media using overnight incubation. Current Antimicrobial Susceptibility Testing (AST) methods are based either on quantitative dilution techniques or qualitative diffusion procedures. Dilution methods are based on two-fold serial dilutions of antibiotics in broth or agar media. These methods generate the MIC value i.e. Minimum Inhibitory Concentration of a given antibiotic in ¿g/mL that will inhibit the growth of a particular bacterium under defined experimental conditions

Reason: Product Stability issues: The current shelf-life claims of the ETEST products are not supported by internal testing.

Code information: Reference no. 502558, Lot #1003036730, 1003142000, 1003191650, 1003408580, 1004047410, 1004139950, 1004242300, 1004539350, , 1004783810, 1004872380, 1004910650 & 1004985540 and Reference no. 502518, Lot #1002911350, 1002964350, 1003012790, 1004047370, 1004140000, 1004244180, 1004420440, 1004539950, 1004783760, 1004872350, 1004896600.

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