Figure 1From: Characterization of Neisseria gonorrhoeaeisolates detected in Switzerland (1998–2012): emergence of multidrug-resistant clones less susceptible to cephalosporins MIC values distribution for the eight antibiotics tested against the Ng isolates detected during the two different periods (1998–2001 versus 2009–2012). “S”, indicates the cut-off of susceptibility, whereas “R” indicates the isolates intermediate or resistant according to the EUCAST criteria [26]. The results clearly show that the MICs for cephalosporins increased over time (i.e., CRO: from MIC90 of 0.004 mg/L to 0.047 mg/L; CFX: from MIC90 ≤ 0.016 to 0.125 mg/L with also 8.8% of the isolates resistant) and that the prevalence of PEN-, CIP-, and TET-resistant isolates reached dramatic levels.Back to article page