The procedure showed optimal specificity, with excellent signal-to-noise ratios, as shown in detail in the article of Cremonesi and co-workers (36) . Results were in complete concordance with sample identification made by ATCC; only probes associated to the supposed species were present (P-values always <0.005), whereas all remaining probes were well below any acceptable P-value for the t-test (Figure 4) . In this dataset, SNR p varied from 4.31 to 238.3, with an average of 34.28; at the same time, SNR np varied between 0.12 and 0.83, with an average of 0.48 AE 0.18. The two probes on Campylobacter species (insisting on two different positions) performed nearly the same in terms of specificity, both giving P-values far below the acceptance threshold of 0.01, whereas performances in terms of signal intensity varied, with one probe having average IFs about 2-fold higher than the other, in both replicates, suggesting a somehow different sensitivity in the two competing probes.