Determination of minimum inhibitory concentrations

J Antimicrob Chemother2001; 48: Suppl. S1, 5–16 In section 5 ‘Preparation of inoculum’ the following statement and reference were omitted from the first paragraph: Studies undertaken by Yeo & Livermore1 have confirmed that the heavier inoculum of 106 cfu/spot, rather than the standard inoculum of 104 cfu/spot, is required when determining the MICs of ampicillin and amoxicillin for Moraxella catarrhalis. In Table III the line for Staphylococci should have been split into two lines. The corrected table is reproduced below. In Table VI the incubation conditions for staphylococci tests on methicillin/oxacillin should be 30°C in air for 24 h. Appropriate media for different organisms NAD = nicotinamide adenine dinucleotide. Appropriate media for different organisms NAD = nicotinamide adenine dinucleotide.