CPP and abscess: Average RNAm expression of the five genes expressed in abscesses and cultures varied significantly, as follows: nanH 811.50 ± 198.27 and 359.35 ± 75.45 (p = 0.009); cpp 856.31 ± 385.11 and 154.54 ± 94.34 (p = 0.0039); pld 922.70 ± 450.73 and 212.41 ± 153.10 (p = 0.016); sodC 1,293,53 ± 564.75 and 223.63 ± 145.58 (p = 0.016) and spaC 1,157,10 ± 525.13 and 214.26 ± 125.70 (p = 0.016) (Fig. 2).