CD27 and pelvic inflammatory disease: Within the B cell compartment HPV-positive PID patients compared to HPV-negative had higher CD19+/CD38++/CD10+/IgD+ transitional B cells [14.7 (4.2-24.3)/μl vs 2.6 (1.1-6.9)/μl, p = 0.045] and higher CD19+/CD38+/CD27++/IgD- circulating plasmablasts [1.1 (0.5-2.1)/μl vs 0.4 (0.1-0.9)/μl, p = 0.035] Table 3.